LM25576EVAL National Semiconductor, LM25576EVAL Datasheet - Page 5

BOARD EVALUATION FOR LM25576

LM25576EVAL

Manufacturer Part Number
LM25576EVAL
Description
BOARD EVALUATION FOR LM25576
Manufacturer
National Semiconductor
Series
PowerWise®, SIMPLE SWITCHER®r

Specifications of LM25576EVAL

Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Voltage - Output
5V
Current - Output
3A
Voltage - Input
7 ~ 42V
Regulator Topology
Buck
Frequency - Switching
300kHz
Board Type
Fully Populated
Utilized Ic / Part
LM25576
Lead Free Status / RoHS Status
Not applicable / Not applicable
Power - Output
-
Other names
*LM25576EVAL
STARTUP REGULATOR
VCC SUPPLY
SHUTDOWN THRESHOLDS
SWITCH CHARACTERSICS
CURRENT LIMIT
SOFT-START
OSCILLATOR
V
BST to GND
PRE to GND
SW to GND (Steady State)
BST to V
SD, V
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
apply over full Operating Junction Temperature range. V
IN
Symbol
VccReg
to GND
CC
to GND
CC
Vcc Regulator Output
Vcc LDO Mode turn-off
Vcc Current Limit
Vcc UVLO Threshold
Vcc Undervoltage Hysteresis
Bias Current (Iin)
Shutdown Current (Iin)
Shutdown Threshold
Shutdown Hysteresis
Standby Threshold
Standby Hysteresis
SD Pull-up Current Source
Buck Switch Rds(on)
BOOST UVLO
BOOST UVLO Hysteresis
Pre-charge Switch Rds(on)
Pre-charge Switch on-time
Cycle by Cycle Current Limit
Cycle by Cycle Current Limit Delay
SS Current Source
Frequency1
Frequency2
SYNC Source Impedance
SYNC Sink Impedance
SYNC Threshold (falling)
SYNC Frequency
SYNC Pulse Width Minimum
Parameter
45V
60V
45V
-1.5V
45V
14V
Specifications with standard typeface are for T
(Note 1)
IN
Vcc = 0V
(Vcc increasing)
FB = 1.3V
SD = 0V
(SD Increasing)
(Standby Increasing)
RAMP = 0V
RAMP = 2.5V
R
R
= 24V, R
T
T
5
= 11kΩ
= 11kΩ
Conditions
BST to SW
OUT to GND
SYNC, SS, FB, RAMP to GND
ESD Rating (Note 2)
Storage Temperature Range
V
Operation Junction Temperature
Operating Ratings
IN
Human Body Model
T
= 32.4kΩ unless otherwise stated. (Note 3)
6.85
5.03
0.47
1.17
Min
180
425
550
3.6
J
15
7
= 25°C, and those with boldface type
1.225
7.15
5.35
0.25
0.56
Typ
170
265
100
200
485
110
3.4
0.7
0.1
0.1
3.8
4.2
1.3
(Note 1)
25
48
70
10
11
9
5
−40°C to + 125°C
Max
7.45
5.67
1.28
14V
Limited to Vin
7V
2kV
-65°C to +150°C
340
220
545
4.5
0.9
5.1
70
14
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6V to 42V
Units
kHz
kHz
kHz
mΩ
mA
mA
kΩ
µA
µA
µA
ns
ns
ns
V
V
V
V
V
V
V
V
V
V
A
V

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