SLVS632E – JANUARY 2006 – REVISED SEPTEMBER 2013
ELECTRICAL CHARACTERISTICS
T
J
= –40°C to 125°C, VIN = 12 V (unless otherwise noted)
PARAMETER
SUPPLY VOLTAGE (VIN PIN)
I
Q
Quiescent current
VSENSE = 2 V, Not switching,
PH pin open
Shutdown, ENA = 0 V
UNDERVOLTAGE LOCK OUT (UVLO)
Start threshold voltage, UVLO
Hysteresis voltage, UVLO
VOLTAGE REFERENCE
Voltage reference accuracy
OSCILLATOR
Internally set free-running frequency
Minimum controllable on time
Maximum duty cycle
ENABLE (ENA PIN)
Start threshold voltage, ENA
Stop threshold voltage, ENA
Hysteresis voltage, ENA
Internal slow-start time (0~100%)
CURRENT LIMIT
Current limit
Current limit hiccup time
THERMAL SHUTDOWN
Thermal shutdown trip point
Thermal shutdown hysteresis
OUTPUT MOSFET
r
DS(on)
High-side power MOSFET switch
VIN = 5.5 V
150
110
230
mΩ
135
162
14
°C
°C
4
13
5
16
6
20
A
ms
6.6
0.5
450
8
10
1.3
V
V
mV
ms
87
400
500
150
89
600
200
kHz
ns
%
T
J
= 25°C
I
O
= 0 A – 3 A
1.202
1.196
1.221
1.221
1.239
1.245
V
5.3
330
5.5
V
mV
3
18
4.4
50
mA
μA
TEST CONDITIONS
MIN
TYP
MAX
UNIT
4
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