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BD8317GWL PDF预览

BD8317GWL

更新时间: 2024-09-24 11:08:19
品牌 Logo 应用领域
罗姆 - ROHM 开关软启动二极管稳压器
页数 文件大小 规格书
23页 1477K
描述
BD8317GWL是搭载了升压、反转2个信道的二极管整流型电流模式控制的开关稳压器。内置SW用FET和带软启动功能的升压负载SW,可减少外接部件。此外,各信道还可独立控制,因此可轻松构建非动作信道的低功耗序列。

BD8317GWL 数据手册

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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  
BD8317GWL  
Description  
The BD8317GWL is step-up and inverted 2-channel  
Important Specifications  
Input voltage range  
Output boost voltage  
Output inverted voltage  
2.55.5 [V]  
Input voltage(max)~18 [V]  
-9.0-1.0 [V]  
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.  
Maximum current  
1.0A](max)  
0.8 [MHz] (typ.)  
230[mΩ]  
Operating frequency  
Nch FET ON resistance  
Pch FET ON resistance  
230[mΩ]  
1[μA](max)  
Features  
Wide input voltage range of 2.5V to 5.5 V  
Standby current  
High frequency operation 0.8MHz  
Incorporates Nch FET of 230mΩ/22V and Pch  
Pow FET of 230mΩ/15V  
Package  
UCSP50L1 (WLCSP)  
1.8mm×1.5mm×0.5mm, 4×3glid,11pin,  
Incorporates Soft Start (4.2msec(typ))and hight  
side switch of boost channel  
Application  
LCD battery  
Independent ON/OFF signal(STB).  
discharge SW for step up channel  
Built-in  
CCD battery  
Small package UCSP50L1( 1.8mm×1.5mm, 4×  
3 grid, 11pin, WLCSP)  
Circuits protection OCP,SCP,UVLO,TSD  
Portable items that are represented by mobile phone  
and DSC  
STRUCTURE  
:
Silicon Monolithic Integrated Circuit  
Typical Application Input: 2.5 to 5.5V, ch1 output: -5.0 V /100mA(MAX), ch2 output:5.0 V /100mA(MAX)  
0.1uF/10V  
20kΩ  
Ω
100k  
Vout1: -5.0V/100mA  
10uF/16V  
10uH  
VREF  
VDD  
NON1  
LX1  
Vin  
2.55.5V  
10uF/10V  
DIS1  
EN CH1→  
EN CH2→  
STB1  
STB2  
HS2L  
LX2  
10uH  
Vout2: 5.0V/100mA  
GND  
INV2  
10uF/16V  
160kΩ  
30kΩ  
Figure 1. Application schematic  
www.rohm.com  
TSZ02201-0Q2Q0AJ00010-1-2  
2012.09.5 Rev. 001  
© 2011 ROHM Co., Ltd. All rights reserved.  
1/20  
TS2211114001  

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