RT to GND
EN to GND
ESD Rating
HBM (Note 2)
Storage Temperature Range
Junction Temperature
-0.3 to 7V
-0.3 to 45V
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
2 kV
-55°C to +150°C
+150°C
VIN to GND
-0.3V to 45V
-0.3 to 16V
-3.0 to 45V
VCC, VCCX, UVLO to GND (Note 3)
SW, CS to GND
HB to SW
Operating Ratings (Note 1)
-0.3 to 16V
VIN
6V to 42V
4.75V to 15V
4.75V to 15V
-0.3V to 2V
HO to SW
VOUT to GND
CSG to GND
-0.3 to HB+0.3V
-0.3 to 45V
VCC, VCCX
HB to SW
DEMB to GND
Junction Temperature
-1V to 1V
LO to GND
SS to GND
-0.3 to VCC+0.3V
-0.3 to 7V
-40°C to +125°C
Note: RAMP, COMP are output pins. As such they are not specified to have
an external voltage applied.
FB to GND
-0.3 to 7V
DEMB to GND
-0.3 to VCC
Electrical Characteristics Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the
junction temperature range of -40°C to +125°C and are provided for reference only. Unless otherwise specified, the following
conditions apply: VIN = 24V, VCC = 7.4V, VCCX = 0V, EN = 5V, RT = 16kΩ, no load on LO and HO.
Symbol
VIN Supply
IBIAS
IBIASX
Parameter
Conditions
Min
Typ
Max
Units
VIN Operating Current
VIN Operating Current
VIN Shutdown Current
VCCX = 0V
VCCX = 5V
EN = 0V
4.6
1
6.5
1.5
10
mA
mA
µA
ISTDBY
1
VCC Regulator
VCC(REG)
VCC Regulation
7.1
7.4
10.6
5.9
7.7
6.0
4.7
6.2
V
V
VCC LDO Mode Turn-off
VCC Regulation
VIN = 6V
5.0
15
V
VCC Sourcing Current Limit
VCCX Switch Threshold
VCCX Switch Hysteresis
VCCX Switch RDS(ON)
VCCX Leakage
VCC = 0V
VCCX Rising
26
mA
V
4.3
4.5
0.25
3.8
V
ICCX = 10mA
VCCX = 0V
VCCX = 3V
VCC Rising
Ω
-200
100
4.5
nA
kΩ
V
VCCX Pull- down Resistance
VCC Under-voltage Threshold
VCC Under-voltage Hysteresis
HB DC Bias Current
4.3
4.7
200
0.5
0.2
V
HB-SW = 15V
125
µA
EN Input
VIL max
VIH min
EN Input Low Threshold
EN Input High Threshold
EN Input Bias Current
EN Input Bias Current
EN Input Bias Current
V
3.3
-7.5
-1
V
VEN = 3V
-3
0
1
1
µA
µA
µA
VEN = 0.5V
VEN = 42V
15
UVLO Thresholds
UVLO Standby Threshold
UVLO Threshold Hysteresis
UVLO Pull-up Current Source
UVLO Pull-down RDS(ON)
UVLO Rising
UVLO = 0V
1.170
1.215 1.262
V
V
0.1
5.4
µA
Ω
80
210
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