LV5747QA Datasheet, PDF (1/6 Pages) Sanyo Semicon Device – 1-channel Step-down Switching Regulator

Ordering number : ENA2134
LV5747QA
Bi-CMOS LSI
1-channel Step-down Switching
Regulator
Overview
The LV5747QA is a 1-channel step-down switching regulator.
Functions
• 1 channel step-down switching regulator controller.
• Frequency decrease function at pendent.
• Load-independent soft start circuit.
• ON/OFF function.
• Built-in pulse-by-pulse OCP circuit. It is detected by using ON resistance of an external MOS.
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Supply voltage
VIN, SW
HDRV, CBOOT
Symbol
VIN max
Conditions
LDRV
Between CBOOT to SW,
Between CBOOT to HDRV
EN, ILIM
Between VIN to ILIM
VDD
SS, FB, COMP
Allowable Power dissipation
Pd max
Mounted on a specified board. *
Junction temperature
Operating temperature
Tj max
Topr
Storage temperature
Tstg
* Specified board: 24mm × 15mm × 1.6mm, glass epoxy 2-layer board.
Ratings
Unit
45
V
45
V
52
V
6.0
V
6.0
V
VIN+0.3
V
1.0
V
6.0
V
VDD+0.3
V
0.65
W
150
°C
-40 to +85
°C
-55 to +150
°C
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the performance, characteristics, and functions of the described products in the independent state, and are not
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O0312 20120928-S00001 No.A2134-1/6