BD8316GWL Datasheet, PDF (1/24 Pages) Rohm – Step-up and inverted 2-channel DC/DC converter with Built-in Power MOSFET

Datasheet
Single-chip Type with Built-in FET Switching Regulator Series
Step-up and inverted
2-channel DC/DC converter
with Built-in Power MOSFET
BD8316GWL
●Description
The BD8316GWL is step-up and inverted 2-channel
switching regulator with integrated internal high-side
MOSFET. With wide input range from 2.5~5.5V ,it
suitable for application of portable item. In addition,The
small package design is ideal for miniaturizing the
power supply.
●Features
■ Wide input voltage range of 2.5V to 5.5 V
■ High frequency operation 1.6MHz
■ Incorporates Nch FET of 230mΩ/22V and Pch
Pow FET of 230mΩ/15V
■ Incorporates Soft Start (4.2msec(typ))and hight
side switch of boost channel
■ Independent ON/OFF signal(STB). Built-in
discharge SW for step up channel
■ Small package UCSP50L1( 1.8mm×1.5mm, 4×
3 grid, 11pin, WLCSP)
■ Circuits protection OCP,SCP,UVLO,TSD
●Important Specifications
■ Input voltage range
2.5～5.5 [V]
■ Output boost voltage _{Input voltage(max)~18 [V]}
■ Output inverted voltage
-9.0～-1.0 [V]
■ Maximum current
■ Operating frequency
■ Nch FET ON resistance
■ Pch FET ON resistance
■ Standby current
1[A](max)
1.6 [MHz] (typ.)
230[mΩ]
230[mΩ]
1[μA](max)
●Package
UCSP50L1 (WLCSP)
1.8mm×1.5mm×0.5mm, 4×3glid,11pin,
●Application
■ LCD battery
■ CCD battery
■ Portable items that are represented by mobile phone
and DSC
●Typical Application Input: 2.5 to 5.5 V, ch1 output: 5.6 V / 200m A, ch2 output:5.6V/200mA
0.1uF/10V
Vin→
2.5～5.5V
4.7uF/10V
EN CH1→
EN CH２→
VREF
VDD
STB1
STB2
GND
NON1
INV2
LX1
DIS1
HS2L
LX2
4.7uH
10kΩ
56kΩ
Vout1: -5.6V/200mA
4.7uF/10V
4.7uH
180kΩ
Vout2: 5.6V/200mA
4.7uF/10V
30kΩ
Fig.1 Application schematic
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
1/20
TSZ02201-0Q1Q0AJ00170-1-2
2012.08.03 Rev. 003