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