Datasheet

Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (PV
IN
) 3.8V ≤ V
IN
≤ 14V
Supply Voltage (AV
IN
) 4.0V ≤ V
IN
≤ 14V
Feedback Pin Voltage -0.4V ≤ V
FB
≤ 5V
V
CB
Voltage, (Note 7) 7V
C
SS
Voltage 2.5V
Comp Voltage 2.5V
L
DELAY
Voltage 2.5V
LDR Voltage 5V
V
SW
, (Note 8) 14V
Power Dissipation (T
A
=25˚C),
(Note 2)
TSSOP-16 Package θ
JA
140˚C/W
Power Dissapation 893mW
Lead Temperature
Vapor Phase (60 sec.) 215˚C
Infrared (15 sec.) 220˚C
ESD Susceptibility(Note 3)
Human Body Model(Note 4) 1kV
Machine Model 200V
Operating Ratings (Note 1)
Storage Temperature Range −65˚C ≤ T
J
≤ +150˚C
Junction Temperature Range −40˚C ≤ T
J
≤ +125˚C
LM2655-3.3 Electrical Characteristics
Specifications with standard typeface are for T
J
= 25˚C, and those in boldface type apply over full Operating Temperature
Range.V
IN
= 10V unless otherwise specified.
Symbol Parameter Conditions
Typical
(Note 5)
Limit
(Note 6)
Units
V
OUT
Output Voltage I
LOAD
= 1.5 A 3.3
3.235/3.185
3.392/3.416
V
V(min)
V(max)
V
OUT
Output Voltage Line
Regulation
V
IN
=5Vto14V
I
LOAD
= 1.5 A
0.5
0.7
%
%(max)
Output Voltage Load
Regulation
I
LOAD
= 100 mA to 2.5A
V
IN
=10V
0.6
1.7
%
%(max)
V
INUV
V
IN
Undervoltage Lockout
Threshold Voltage
Rising Edge 3.8
3.95
V
V(max)
V
UV_HYST
Hysteresis for the Input
Undervoltage Lockout
210 mV
I
CL
(Note 9) Average Output Current
Limit
V
IN
=5V
V
OUT
= 3.3V
3.3
LM2655-ADJ Electrical Characteristics
Specifications with standard typeface are for T
J
= 25˚C, and those in boldface type apply over full Operating Temperature
Range.V
IN
= 10V unless otherwise specified.
Symbol Parameter Conditions
Typical
(Note 5)
Limit
(Note 6)
Units
V
FB
Feedback Voltage I
LOAD
= 1.5 A 1.238
1.208/1.181
1.260/1.267
V
V(min)
V(max)
V
OUT
Output Voltage Line
Regulation
V
IN
=5Vto14V
I
LOAD
= 1.5 A
0.5
0.7
%
%(max)
Output Voltage Load
Regulation
I
LOAD
= 100 mA to 2.5A
V
IN
=10V
0.6
1.7
%
%(max)
V
INUV
V
IN
Undervoltage Lockout
Threshold Voltage
Rising Edge 3.8
3.95
V
V(max)
V
UV_HYST
Hysteresis for the Input
Undervoltage Lockout
210 mV
I
CL
(Note 9) Average Output Current
Limit
V
IN
=5V
V
OUT
= 3.3V
3.3 A
LM2655
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