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LP38691-ADJ Datasheet, PDF (3/13 Pages) National Semiconductor (TI) – 500mA Low Dropout CMOS Linear Regulators with Adjustable Output / Stable with Ceramic Output Capacitors
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Storage Temperature Range
−65˚C to +150˚C
Lead Temp. (Soldering, 5 seconds)
260˚C
ESD Rating (Note 3)
2 kV
Power Dissipation (Note 2)
Internally Limited
V(max) All pins (with respect to GND)
-0.3V to 12V
IOUT
Junction Temperature
Operating Ratings
VIN Supply Voltage
Operating Junction
Temperature Range
Internally Limited
−40˚C to +150˚C
2.7V to 10V
−40˚C to +125˚C
Electrical Characteristics Limits in standard typeface are for TJ = 25˚C, and limits in boldface type apply
over the full operating temperature range. Unless otherwise specified: VIN = VOUT + 1V, CIN = COUT = 10 µF, ILOAD = 10mA.
Min/Max limits are guaranteed through testing, statistical correlation, or design.
Symbol
Parameter
Conditions
VADJ
∆VO/∆VIN
∆VO/∆IL
VIN - VO
IQ
IL(MIN)
IFB
PSRR
TSD
TSD (HYST)
IADJ
ADJ Pin Voltage
Output Voltage Line Regulation
(Note 6)
Output Voltage Load Regulation
(Note 7)
Dropout Voltage (Note 8)
Quiescent Current
Minimum Load Current
Foldback Current Limit
Ripple Rejection
Thermal Shutdown Activation
(Junction Temp)
Thermal Shutdown Hysteresis
(Junction Temp)
ADJ Input Leakage Current
VIN = 2.7V
3.2V ≤ VIN ≤ 10V
100 µA < IL < 0.5A
VO + 0.5V ≤ VIN ≤ 10V
IL = 25mA
1 mA < IL < 0.5A
VIN = VO + 1V
(VO = 2.5V)
IL = 0.1A
IL = 0.5A
(VO = 3.3V)
IL = 0.1A
IL = 0.5A
(VO = 5V)
IL = 0.1A
IL = 0.5A
VIN ≤ 10V, IL = 100 µA - 0.5A
VEN ≤ 0.4V,
(LP38693-ADJ Only)
VIN - VO ≤ 4V
VIN - VO > 5V
VIN - VO < 4V
VIN = VO + 2V(DC), with 1V(p-p)
/ 120Hz Ripple
VADJ = 0 - 1.5V
VIN = 10V
Min
1.225
1.200
-100
Typ
(Note 4)
1.25
1.25
0.03
1.8
80
430
65
330
45
250
55
0.001
350
850
55
160
10
0.01
Max
1.275
1.300
0.1
5
145
725
110
550
100
450
100
1
100
100
Units
V
%/V
%/A
mV
µA
mA
dB
˚C
nA
3
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