Absolute Maximum Ratings (Note 1)
IOUT
Internally Limited
−40˚C to +150˚C
Junction Temperature
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Operating Ratings
VIN Supply Voltage
Operating Junction
Temperature Range
Storage Temperature Range
Lead Temp. (Soldering, 5 seconds)
ESD Rating (Note 3)
−65˚C to +150˚C
260˚C
2.7V to 10V
−40˚C to +125˚C
2 kV
Power Dissipation (Note 2)
Internally Limited
-0.3V to 12V
V(max) All pins (with respect to GND)
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.
Typ
(Note 4)
1.25
Symbol
Parameter
Conditions
Min
Max
1.275
1.300
Units
VIN = 2.7V
3.2V ≤ VIN ≤ 10V
1.225
1.200
VADJ
ADJ Pin Voltage
V
1.25
0.03
1.8
<
<
100 µA IL 0.5A
VO + 0.5V ≤ VIN ≤ 10V
IL = 25mA
∆VO/∆VIN
∆VO/∆IL
Output Voltage Line Regulation
(Note 6)
0.1
5
%/V
%/A
<
<
Output Voltage Load Regulation 1 mA IL 0.5A
(Note 7)
VIN = VO + 1V
(VO = 2.5V)
IL = 0.1A
80
145
725
430
IL = 0.5A
(VO = 3.3V)
IL = 0.1A
65
110
550
VIN - VO
Dropout Voltage (Note 8)
Quiescent Current
mV
330
IL = 0.5A
(VO = 5V)
45
100
450
IL = 0.1A
250
IL = 0.5A
IQ
VIN ≤ 10V, IL = 100 µA - 0.5A
VEN ≤ 0.4V,
(LP38693-ADJ Only)
VIN - VO ≤ 4V
55
100
1
0.001
µA
IL(MIN)
IFB
Minimum Load Current
Foldback Current Limit
100
>
VIN - VO 5V
350
850
mA
dB
<
VIN - VO 4V
PSRR
TSD
Ripple Rejection
VIN = VO + 2V(DC), with 1V(p-p)
/ 120Hz Ripple
55
160
10
Thermal Shutdown Activation
(Junction Temp)
˚C
TSD (HYST) Thermal Shutdown Hysteresis
(Junction Temp)
IADJ
ADJ Input Leakage Current
VADJ = 0 - 1.5V
VIN = 10V
-100
0.01
100
nA
3
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