LM2727/LM2737
Absolute Maximum Ratings
Infrared or Convection (20sec)
ESD Rating
235˚C
2 kV
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
CC
BOOTV
Junction Temperature
Storage Temperature
Soldering Information
Lead Temperature
(soldering, 10sec)
260˚C
7V
21V
150˚C
−65˚C to 150˚C
Operating Ratings
Supply Voltage (V
CC
)
Junction Temperature Range
Thermal Resistance (θ
JA
)
4.5V to 5.5V
−40˚C to +125˚C
155˚C/W
Electrical Characteristics
V
CC
= 5V unless otherwise indicated. Typicals and limits appearing in plain type apply for T
A
=T
J
=+25˚C. Limits appearing in
boldface type apply over full Operating Temperature Range. Datasheet min/max specification limits are guaranteed by design,
test, or statistical analysis.
Symbol
Parameter
Conditions
V
CC
= 4.5V, 0˚C to +125˚C
V
CC
= 5V, 0˚C to +125˚C
V
FB_ADJ
FB Pin Voltage
V
CC
= 5.5V, 0˚C to +125˚C
V
CC
= 4.5V, −40˚C to +125˚C
V
CC
= 5V, −40˚C to +125˚C
V
CC
= 5.5V, −40˚C to +125˚C
V
ON
UVLO Thresholds
Rising
Falling
SD = 5V, FB = 0.55V
Fsw = 600kHz
SD = 5V, FB = 0.65V
Fsw = 600kHz
SD = 0V
FB Voltage Going Up
FB Voltage Going Down
SS Voltage = 2.5V
0˚C to +125˚C
-40˚C to +125˚C
1
0.8
0.15
Min
0.591
0.591
0.591
0.589
0.589
0.589
Typ
0.6
0.6
0.6
0.6
0.6
0.6
4.2
3.6
1.5
1.7
0.4
6
6
20
8
5
11
11
95
35
28
50
50
65
65
15
15
2
mA
2.2
0.7
mA
µs
µs
µA
µA
Max
0.609
0.609
0.609
0.609
0.609
0.609
V
V
Units
I
Q-V5
Operating V
CC
Current
Shutdown V
CC
Current
t
PWGD1
t
PWGD2
I
SD
I
SS-ON
PWGD Pin Response Time
PWGD Pin Response Time
SD Pin Internal Pull-up Current
SS Pin Source Current
I
SS-OC
SS Pin Sink Current During Over SS Voltage = 2.5V
Current
I
SEN
Pin Source Current Trip
Point
Error Amplifier Unity Gain
Bandwidth
Error Amplifier DC Gain
Error Amplifier Slew Rate
FB Pin Bias Current
EAO Pin Current Sourcing and
Sinking
Error Amplifier Maximum Swing
FB = 0.55V
FB = 0.65V
V
EAO
= 2.5, FB = 0.55V
V
EAO
= 2.5, FB = 0.65V
Minimum
Maximum
0
0
0˚C to +125˚C
-40˚C to +125˚C
µA
µA
I
SEN-TH
ERROR AMPLIFIER
GBW
G
SR
I
FB
I
EAO
V
EA
5
60
6
15
30
2.8
0.8
1.2
3.2
100
155
MHz
dB
V/µA
nA
mA
V
3
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