150ma ultra low dropout positive voltage regulator · 150ma ultra low dropout positive voltage...
TRANSCRIPT
Rev. A/LX
LD2202
150mA Ultra Low Dropout Positive Voltage Regulator
TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com
Page 1 of 21 Tel: (800)-TAITRON (800)-824-8766 (661)-257-6060 Fax: (800)-TAITFAX (800)-824-8329 (661)-257-6415
150mA Ultra Low Dropout Positive Voltage Regulator
General Description
• LD2202 is an ultra low dropout positive voltage regulator with a dropout of 165mV (typical) at 150mA output current. It provides very low noise, very low standby current (1uA Max) and excellent power supply ripple rejection (PSRR) 75dB at 100Hz in battery power applications, such as handsets and PDAs and RF communication applications.
• LD2202 is available in 5 fixed output voltages: 2.5V, 2.6V, 2.8V,3.0V,3.3V and it is also available in an adjustable version which can set the output voltage with 2 external resisitors. It could provide output volage accuracy within ±1.0% at 25°C and ±2.0% over full temperature range. • LD2202 also features logic compatible enable/shutdown control input, a low power shutdown
mode for extended battery life, build in over current protection, over temperature protection as well as reversed battery protection.
• LD2202 series are available in SOT-89 and SOT-23-5 Packages
Features
• Output Current up to 150mA • Very Low Standby Curent:1uA max • Low Dropout Voltage:165mV (Typical) at 150mA • Low Temperature Coefficient • High Output Accuracy: ±1.0% • Excellent Power Ripple Rejection:75dB at 100Hz and IO=100uA • Over Current Protection (OCP) • Thermal overload Protection • Reverse-battery protection • Logic-controlled Enable function • Wide Operation Junction Temperature: -40°C to 125°C • RoHS Compliance and Halogen Free
Applications
• PC Mother Board • PDAs and Palmtops • LCD Monitor , DVD Video Player and Printer • Telecom Equipment and RF communicators
SOT-89
SOT-23-5
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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Ordering Information
Pin Configuration
Pin Description
Outline SOT-89 SOT-23-5 Symbol Description
3 1 VIN Input Voltage 2 2 GND Ground
- 3 EN Active high enable input :CMOS or TTL Logic High: enable; Logic Low :shutdown
- 4 BYP/ADJ Bypass capacitor for low noise operation and Adjust output
1 5 VO Output Voltage
Marking information:
SOT-89 1: OUTPUT 2: GND (TAB) 3: INPUT 1: INPUT 2: GND 3: EN 4:ADJ /BYP 5: OUTPUT
SOT-23-5
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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PN Marking Code Outline Temperatue
Range ROHS Halogen Free ROHS Halogen Free
PackingType
SOT-89 -40°C to 125°C LD2202K-3.3-08-TR70 LD2202K-3.3-08-RG70 E22B G22B
LD2202N5-ADJ-08-TR70 LD2202N5-ADJ-08-RG70 E2C G2C
LD2202N5-2.5-08-TR70 LD2202N5-2.5-08-RG70 E2D G2D
LD2202N5-2.6-08-TR70 LD2202N5-2.6-08-RG70 E2E G2E
LD2202N5-2.8-08-TR70 LD2202N5-2.8-08-RG70 E2G G2G
LD2202N5-3.0-08-TR70 LD2202N5-3.0-08-RG70 E2I G2I
SOT-23-5 -40°C to 125°C
LD2202N5-3.3-08-TR70 LD2202N5-3.3-08-RG70 E2L G2L
Tape & Reel
Functional Block Diagram
Absolute Maximum Ratings (Note1)
Pin A(B):A for SOT-23-5 B for SOT-89
Fixed Output Voltage Regulator Adjustable Output Voltage Regulator
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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Symbol Description Ratings Unit
VIN Input Voltage 15 V VEN Enable Input Voltage 15 V
PD Power Dissipation Internally Limited (Thermal Protection) W
TJ Junction Temperature 150 °C TSTG Storage Temperature Range -65 to 150 °C
TLEAD (10 sec) Lead Soldering Temperature 260 °C SOT-89 165 θJA Thermal Resistance (No Heat sink)
(Not2) SOT-23-5 200 °C/W
ESD ESD (Machine model) 200 V
Recommend Operating Ratings (Note1)
Ratings Symbol Description Min Max Unit
VIN Input Voltage 2.5 13.2 V VEN Enable Input Voltage 0 13.2 V TJ Operating Junction Temperature -40 125 °C
Note1: Absolute maximum ratings indicate limits beyond which damage to the device may occur. Recommend operating ratings indicate conditions for which the device is functional, but do not guarantee specific specification limits. For guarantee specification and test conditions, see the Electrical Characteristics, the guarantee specification apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions.
Note2: The Max power dissipation is a function of TJ(max), θJA and TA .The maximum allowable power dissipation at any temperature is PD(Max)=(TJ(max)-TA)/ θJA, Exceeding the maximum allowable power dissipation will result in die temperature and the Regulator will go into thermal shutdown
Electrical Characteristics For LD2202-ADJ (VIN=VO+1V, IO=100uA, CIN=1.0uF,CO=2.2uF, VEN ≥2.0V,TJ=25°C, Bold typeface applies for
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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-40°C≤TJ ≤125°C,unless otherwise specified), (Note3 ) LD2202-ADJ Symbol Description
Min. Type. Max. Unit Test Conditions
- 0.004 0.012∆VLINE Line Regulation - - 0.05 %/V VIN=VO+1V to13.2V
- 0.02 0.2 ∆VLOAD Load Regulation (Note4) - - 0.5
% IO=0.1mA to 150mA
-1 - 1 % ∆VO/VO Output Voltage Accuracy -2 - 2 %
Variation from specified VO
∆VO/∆T Output Voltage Temperature Coefficient (Note5) - 120 - uV/°C
ILIMIT Current Limit 320 550 - mA VO=0V - 0.01 1 VEN≤0.4V (shut down) ISTD Standby Current - 5
uA VEN≤0.18V (shut down)
- 95 130 - - 150
VEN≥2.0V, IO=0uA
- 98 140 - - 160
VEN≥2.0V, IO=100uA
- 350 600 - - 800
VEN≥2.0V, IO=50mA
- 600 1000- - 1500
VEN≥2.0V, IO=100mA
- 1300 1900
IGND Ground Pin Current (Note6)
- - 2500
uA
VEN≥2.0V, IO=150mA
- 15 50 - - 70
IO=100uA
- 110 150 - - 230
IO=50mA
- 140 250 - - 300
IO=100mA
- 165 275
VD Dropout Voltage (Note7)
- - 350
mV
IO=150mA
eN Output Noise Voltage - 260 - nV/ IO=50mA, CIN=2.2uF,100pF from BYP to GND
PSRR Power Supply Ripple Rejection - 75 - dB IO=100uA, f=100Hz - - 0.4 VIL Enable Input Logic-Low Voltage - - 0.18
V ULDO Shutdown
VIH Enable Input Logic-High Voltage 2.0 - - V ULDO Enable IIL Enable Input Logic-Low Current - 0.01 1 uA VIL≤0.4V
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
www.taitroncomponents.com Page 6 of21
- - 2 VIL≤0.18V - 5 20 IIH Enable Input Logic-High Current - - 25
uA VIH≥2.0V
For LD2202-2.5 (VIN=3.5V, IO=100uA,CIN=1.0uF,CO=2.2uF, VEN ≥2.0V,TJ=25°C, Bold typeface applies for -40°C≤TJ ≤125°C,unless otherwise specified), (Note3 )
LD2202-2.5 Symbol Description Min. Type. Max.
Unit Test Conditions
- 1 3 ∆VLINE Line Regulation - - 13 mV VIN=3.5V to13.2V
- 1 5 ∆VLOAD Load Regulation (Note4) - - 13
mV IO=0.1mA to 150mA
-1 - 1 % ∆VO/VO Output Voltage Accuracy -2 - 2 %
Variation from specified VO
∆VO/∆T - 120 - - uV/°C ∆VO/VO ∆T
Output Voltage Temperature Coefficient (Note5) - 48 - - ppm/°C
ILIMIT Current Limit 320 550 - mA VO=0V - 0.01 1 VEN≤0.4V (shut down) ISTD Standby Current - 5
uA VEN≤0.18V (shut down)
- 95 130 - - 150
VEN≥2.0V, IO=0uA
- 98 140 - - 160
VEN≥2.0V, IO=100uA
- 350 600 - - 800
VEN≥2.0V, IO=50mA
- 600 1000- - 1500
VEN≥2.0V, IO=100mA
- 1300 1900
IGND Ground Pin Current (Note6)
- - 2500
uA
VEN≥2.0V, IO=150mA
- 15 50 - - 70
IO=100uA
- 110 150 - - 230
IO=50mA
- 140 250 - - 300
IO=100mA
- 165 275
VD Dropout Voltage (Note7)
- - 350
mV
IO=150mA
eN Output Noise Voltage - 260 - nV/ IO=50mA, CIN=2.2uF,100pF from BYP to GND
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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PSRR Power Supply Ripple Rejection - 75 - dB IO=100uA, f=100Hz - - 0.4 VIL Enable Input Logic-Low Voltage - - 0.18
V ULDO Shutdown
VIH Enable Input Logic-High Voltage 2.0 - - V ULDO Enable - 0.01 1 VIL≤0.4V IIL Enable Input Logic-Low Current - - 2
uA VIL≤0.18V
- 5 20 IIH Enable Input Logic-High Current - - 25
uA VIH≥2.0V
For LD2202-2.6 (VIN=3.6V, IO=100uA,CIN=1.0uF,CO=2.2uF, VEN ≥2.0V,TJ=25°C, Bold typeface applies for -40°C≤TJ ≤125°C,unless otherwise specified), (Note3 )
LD2202-2.6 Symbol Description Min. Type. Max.
Unit Test Conditions
- 1 3 ∆VLINE Line Regulation - - 13 mV VIN=3.6V to13.2V
- 1 6 ∆VLOAD Load Regulation (Note4) - - 14
mV IO=0.1mA to 150mA
-1 - 1 % ∆VO/VO Output Voltage Accuracy -2 - 2 %
Variation from specified VO
∆VO/∆T - 120 - - uV/°C ∆VO/VO ∆T
Output Voltage Temperature Coefficient (Note5) - 46 - - ppm/°C
ILIMIT Current Limit 320 550 - mA VO=0V - 0.01 1 VEN≤0.4V (shut down) ISTD Standby Current - 5
uA VEN≤0.18V (shut down)
- 95 130 - - 150
VEN≥2.0V, IO=0uA
- 98 140 - - 160
VEN≥2.0V, IO=100uA
- 350 600 - - 800
VEN≥2.0V, IO=50mA
- 600 1000- - 1500
VEN≥2.0V, IO=100mA
- 1300 1900
IGND Ground Pin Current (Note6)
- - 2500
uA
VEN≥2.0V, IO=150mA
VD Dropout Voltage (Note7) - 15 50 mV IO=100uA
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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- - 70 - 110 150 - - 230
IO=50mA
- 140 250 - - 300
IO=100mA
- 165 275 - - 350
IO=150mA
eN Output Noise Voltage - 260 - nV/ IO=50mA, CIN=2.2uF,100pF from BYP to GND
PSRR Power Supply Ripple Rejection - 75 - dB IO=100uA, f=100Hz - - 0.4 VIL Enable Input Logic-Low Voltage - - 0.18
V ULDO Shutdown
VIH Enable Input Logic-High Voltage 2.0 - - V ULDO Enable - 0.01 1 VIL≤0.4V IIL Enable Input Logic-Low Current - - 2
uA VIL≤0.18V
- 5 20 IIH Enable Input Logic-High Current - - 25
uA VIH≥2.0V
For LD2202-2.8 (VIN=3.8V, IO=100uA,CIN=1.0uF,CO=2.2uF, VEN ≥2.0V,TJ=25°C, Bold typeface applies for -40°C≤TJ ≤125°C,unless otherwise specified), (Note3 )
LD2202-2.8 Symbol Description Min. Type. Max.
Unit Test Conditions
- 1 4 ∆VLINE Line Regulation - - 14 mV VIN=3.8V to13.2V
- 1 6 ∆VLOAD Load Regulation (Note4) - - 14
mV IO=0.1mA to 150mA
-1 - 1 % ∆VO/VO Output Voltage Accuracy -2 - 2 %
Variation from specified VO
∆VO/∆T - 120 - - uV/°C ∆VO/VO ∆T
Output Voltage Temperature Coefficient (Note5) - 42.8 - - ppm/°C
ILIMIT Current Limit 320 550 - mA VO=0V - 0.01 1 VEN≤0.4V (shut down) ISTD Standby Current - 5
uA VEN≤0.18V (shut down)
IGND Ground Pin Current (Note6) - 95 130 uA VEN≥2.0V, IO=0uA
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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- - 150 - 98 140 - - 160
VEN≥2.0V, IO=100uA
- 350 600 - - 800
VEN≥2.0V, IO=50mA
- 600 1000- - 1500
VEN≥2.0V, IO=100mA
- 1300 1900- - 2500
VEN≥2.0V, IO=150mA
- 15 50 - - 70
IO=100uA
- 110 150 - - 230
IO=50mA
- 140 250 - - 300
IO=100mA
- 165 275
VD Dropout Voltage (Note7)
- - 350
mV
IO=150mA
eN Output Noise Voltage - 260 - nV/ IO=50mA, CIN=2.2uF,100pF from BYP to GND
PSRR Power Supply Ripple Rejection - 75 - dB IO=100uA, f=100Hz - - 0.4 VIL Enable Input Logic-Low Voltage - - 0.18
V ULDO Shutdown
VIH Enable Input Logic-High Voltage 2.0 - - V ULDO Enable - 0.01 1 VIL≤0.4V IIL Enable Input Logic-Low Current - - 2
uA VIL≤0.18V
- 5 20 IIH Enable Input Logic-High Current - - 25
uA VIH≥2.0V
For LD2202-3.0 (VIN=4.0V, IO=100uA,CIN=1.0uF,CO=2.2uF, VEN ≥2.0V,TJ=25°C, Bold typeface applies for -40°C≤TJ ≤125°C,unless otherwise specified), (Note3 )
LD2202-3.0 Symbol Description Min. Type. Max.
Unit Test Conditions
- 1 4 ∆VLINE Line Regulation - - 14 mV VIN=4.0V to13.2V
- 1 7 ∆VLOAD Load Regulation (Note4) - - 15
mV IO=0.1mA to 150mA
-1 - 1 % ∆VO/VO Output Voltage Accuracy -2 - 2 %
Variation from specified VO
∆VO/∆T Output Voltage Temperature - 120 - - uV/°C
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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∆VO/VO ∆T
Coefficient (Note5) - 40 - - ppm/°C
ILIMIT Current Limit 320 550 - mA VO=0V - 0.01 1 VEN≤0.4V (shut down) ISTD Standby Current - 5
uA VEN≤0.18V (shut down)
- 95 130 - - 150
VEN≥2.0V, IO=0uA
- 98 140 - - 160
VEN≥2.0V, IO=100uA
- 350 600 - - 800
VEN≥2.0V, IO=50mA
- 600 1000- - 1500
VEN≥2.0V, IO=100mA
- 1300 1900
IGND Ground Pin Current (Note6)
- - 2500
uA
VEN≥2.0V, IO=150mA
- 15 50 - - 70
IO=100uA
- 110 150 - - 230
IO=50mA
- 140 250 - - 300
IO=100mA
- 165 275
VD Dropout Voltage (Note7)
- - 350
mV
IO=150mA
eN Output Noise Voltage - 260 - nV/ IO=50mA, CIN=2.2uF,100pF from BYP to GND
PSRR Power Supply Ripple Rejection - 75 - dB IO=100uA, f=100Hz - - 0.4 VIL Enable Input Logic-Low Voltage - - 0.18
V ULDO Shutdown
VIH Enable Input Logic-High Voltage 2.0 - - V ULDO Enable - 0.01 1 VIL≤0.4V IIL Enable Input Logic-Low Current - - 2
uA VIL≤0.18V
- 5 20 IIH Enable Input Logic-High Current - - 25
uA VIH≥2.0V
For LD2202-3.3(VIN=4.3V, IO=100uA,CIN=1.0uF,CO=2.2uF, VEN ≥2.0V,TJ=25°C, Bold Typeface applies for
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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-40°C≤TJ ≤125°C,unless otherwise specified), (Note3 ) LD2202-3.3 Symbol Description
Min. Type. Max. Unit Test Conditions
- 1 5 ∆VLINE Line Regulation - - 15 mV VIN=4.3V to13.2V
- 1 8 ∆VLOAD Load Regulation (Note4) - - 17
mV IO=0.1mA to 150mA
-1 - 1 % ∆VO/VO Output Voltage Accuracy -2 - 2 %
Variation from specified VO
∆VO/∆T - 120 - - uV/°C ∆VO/VO ∆T
Output Voltage Temperature Coefficient (Note5) - 36.3 - - ppm/°C
ILIMIT Current Limit 320 550 - mA VO=0V - 0.01 1 VEN≤0.4V (shut down) ISTD Standby Current - 5
uA VEN≤0.18V (shut down)
- 95 130 - - 150
VEN≥2.0V, IO=0uA
- 98 140 - - 160
VEN≥2.0V, IO=100uA
- 350 600 - - 800
VEN≥2.0V, IO=50mA
- 600 1000- - 1500
VEN≥2.0V, IO=100mA
- 1300 1900
IGND Ground Pin Current (Note6)
- - 2500
uA
VEN≥2.0V, IO=150mA
- 15 50 - - 70
IO=100uA
- 110 150 - - 230
IO=50mA
- 140 250 - - 300
IO=100mA
- 165 275
VD Dropout Voltage(Note 7)
- - 350
mV
IO=150mA
eN Output Noise Voltage - 260 - nV/ IO=50mA, CIN=2.2uF,100pF from BYP to GND
PSRR Power Supply Ripple Rejection - 75 - dB IO=100uA, f=100Hz - - 0.4 VIL Enable Input Logic-Low Voltage - - 0.18
V ULDO Shutdown
VIH Enable Input Logic-High Voltage 2.0 - - V ULDO Enable
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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- 0.01 1 VIL≤0.4V IIL Enable Input Logic-Low Current - - 2
uA VIL≤0.18V
- 5 20 IIH Enable Input Logic-High Current - - 25
uA VIH≥2.0V
Note3:Specification in Bold typeface are limited to -40°C≤TJ ≤125°C.Limited over temperature are guaranteed by design, but not tested in production. Note4:Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load range from 0.1mA to 150mA.Changes in output voltage due to heating effects are covered by the thermal regulation specification. Note5: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range. Note6:Ground Pin current is the regulator quiescent current plus pass transistor base current.The total current drawn from the supply is the sum of the load current plus the ground pin current. Note7:Dropout voltage is defined as the input to output differential at which the output voltage drop 1.0% (TJ=25°C) or 2.0% (-40°C≤TJ ≤125°C) below its nominal value measured at 1V differential.
Typical Characteristics Curves
Out
put
Vol
tage
VO
(V)
Fig.1 VO - TJ Fig.2 VD - TJ
Dro
pout
Vol
tage
VD (m
V)
Operation Junction Temperature TJ (°C) Operation Junction Temperature TJ (°C)
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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Ena
ble
Cur
rent
IEN (u
A)
Fig-3 ∆VLOAD-TJ Fig-4 VREF-TJ
Output Current IO (mA)
Fig.3 IGND - IO
Gro
und
Pin
Cur
rent
(mA
)
Operation Junction Temperature TJ (°C)
Fig.4 IGND - TJ
Gro
und
Pin
Cur
rent
(uA
) E
nabl
e V
olta
ge V
EN (V
)
Fig.5 IEN - TJ
Operation Junction Temperature TJ (°C) Operation Junction Temperature TJ (°C)
Fig.6 VEN - TJ
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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Out
put N
oise
eN
(uV
rms
)
Bypass Capacitor CBYP (pF)
Ambient Temperature TA (°C)
Pow
er D
issi
patio
n P
D (W
)
Fig.7 eN - CBYP
Out
put N
oise
eN
(uV
/
)
Fig.8 eN - f
Frequency f (Hz)
Ambient Temperature TA (°C)
Fig.9 PD - TA Fig.10 PD - TA
Pow
er D
issi
patio
n P
D (W
)
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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ESR
(Ω)
Pow
er S
uppl
y R
ejec
tion
Rat
io
PSR
R (d
B)
Output Current IO (mA)
Fig.14 PSRR - f
Frequency f (Hz)
Fig.11 ESR - IO
Output Current IO (mA)
ES
R (Ω
)
Fig.12 ESR - IO
Fig.13 ESR - IO
ESR
(Ω)
Output Current IO (mA)
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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∆VL
INE
(mV
)
Time (us)
VIN
(V
)
∆VL
OAD
(mV
) IO
(mA)
VIN=3.8V IO=5mA to100mA CIN=1uF,CO=2.2uF CBYP =100pF,VEN=2V
VIN=3.8V to 4.8VVEN=2V IO=100uA CBYP=100pF CO=10uF
Fig.16 Line Transient Response Fig.15 Load Transient Response
Time (us)
Fig.17 VEN (on) - VO
VIN=3.8V VEN=0 to 2V IO=30mA CBYP=open CO=2.2uF
VEN
(V
) V
O (V
)
Time (us)
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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Typical Application (Note8)
Note8:Dropuout voltage is 165mV when TJ=25°C.In order to obtain a normal output voltage,VO+0.165V is the minimum input voltage which will result in a low PSRR, imposing a bad influence on system. Therefore, the recommended input voltage is VO+0.5V to 13.2V.For LD2202-2.8 Version, Its input voltage can be set from 3.3V (VO+0.5V) to 13.2V.For the Adj version, any value from VO+0.5V to 13.2V is available.R1 and R2 must be correctly selected when setting the output voltage. For example, if 3.0V output voltage is required,R1and R2 Can be set to 10KΩ an 14 KΩ respectively. For Adj version, we recommend 2.3V as minimum output voltage.
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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Application Notes
Input Capacitor A1uF minimum capacitor is recommended to be place between VIN and GND Output Capacitor Bypass capacitor is connected to the internal voltage reference. A 100pF capacitor connected from BYP to GND ,make this reference quiet, resulting in a significant reduction in output noise, but the ESR stable area will be narrowed. The start-up speed of the LD2202 is inversely proportional to the value of reference bypass capacitor. In some cases, if output noise is not a major concern and rapid turn-on is necessary, omit CBYP and BYP open. Power Dissipation Thermal shutdown may occur if exceeding the maximum power dissipation conditions, the junction temperature must be within the range specified under absolute maximum ratings to avoid thermal shutdown. To determine if the power dissipated in the regulator reaches the maximum power dissipation (Fig9 and Fig10), the formula is:TJ=TA+PD*θJA; PD=(VIN-VO)*IO+VIN*IGND. Where: TJ≤TJ (max) is absolute maximum rating for the junction temperature; VIN*IGND can be ignored due to the small value. TJ (max) is 150°C, θJA is 200°C/W for SOT-23-5 package and 165°C/W for SOT-89 package, no heat-sink is required since the package alone will dissipate enough heat to satisfy these requirements unless the calculated value for power dissipation exceeds the limit. Example: For 2.8V version packaged in SOT-23-5, IO=150mA,TA=30°C, VIN(max) =(150°C-30°C)/(0.15A*200°C/W)+2.8V=6.8V, therefore ,for good performance, please make sure that input voltage is less than 6.8V without heat-sink when TA=30°C,
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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Dimensions in mm (inch)
SOT-89
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
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SOT-23-5
150mA Ultra Low Dropout Positive Voltage Regulator
Rev. A/LX
LD2202
www.taitroncomponents.com Page 21 of21
How to contact us:
US HEADQUARTERS 28040 WEST HARRISON PARKAWAY, VALENCIA, CA 91355-4162
Tel: (800) TAITRON (800) 824-8766 (661) 257-6060 Fax: (800) TAITFAX (800) 824-8329 (661) 257-6415
Email: [email protected] Http://www.taitroncomponents.com
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