lv5781 Sanyo Semiconductor Corporation, lv5781 Datasheet - Page 3

• Manufacturer Part Number: lv5781
• Description: 3a, Point-of-load, Chopper-type Step-down Converter
• Manufacturer: Sanyo Semiconductor Corporation

Package Dimensions
unit : mm (typ)
3313
Block Diagram and Sample Application Circuits
(2.35)
1.5
1.3
OFF
1
14
SANYO : HSSOP14(225mil)
6.5
0.65
ON
OERRAMP
SS
FB_GND
FB0
FB1
Enable
FB2
8
7
0.22
6.5µA
Internal
Reg
0.15
180kHz
3.2V
OSC
1.25V
Vref
Error
Amp
UVLO
LV5781
S/D
comparator
0.85
PWM
1.0
0.8
0.6
0.4
0.2
TSD
S/D
CBOOT
0
-40
BOOT(SW+V IN )
GND
S/D
-20
Ambient temperature, Ta - °C
Pre-Drive
0
Mounted on a specified board:
114.3mm×76.1mm×1.6mm, glass epoxy
OCP
Pd max -- Ta
20
40
60
SW
80
0.38
100
V IN
No.A0663-3/7
V OUT