LP38691/LP38693
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
Lead Temp. (Soldering, 5 seconds)
ESD Rating
(Note 3)
Power Dissipation
(Note 2)
−65°C to +150°C
260°C
2 kV
Internally Limited
V(max) All pins (with respect to GND)
I
OUT
Junction Temperature
-0.3V to 12V
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
Conditions
Min
-2.0
V
O
ΔV
O
/ΔV
IN
ΔV
O
/ΔI
L
Output Voltage Tolerance
Output Voltage Line Regulation
(Note 6)
Output Voltage Load Regulation
(Note 7)
100 µA < I
L
< 0.5A
V
O
+ 1V
≤
V
IN
≤
10V
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
OUT
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 Only)
I
L
(MIN)
I
FB
PSRR
T
SD
T
SD
(HYST)
Minimum Load Current
Foldback Current Limit
Ripple Rejection
Thermal Shutdown Activation
(Junction Temp)
Thermal Shutdown Hysteresis
(Junction Temp)
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
-4.0
0.03
1.8
80
430
65
330
45
250
55
0.001
Typ
(Note 4)
Max
2.0
4.0
0.1
5
145
725
110
550
100
450
100
1
100
mA
dB
µA
%V
OUT
Units
Electrical Characteristics
%/V
%/A
mV
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