BD4157MUV Datasheet, PDF (1/25 Pages) Rohm – Power Switch IC for ExpressCardTM

Power Management Switch ICs for PCs and Digital Consumer Products
Power Switch IC
for ExpressCard^TM
BD4157MUV
No.11029EAT26
●Description
BD4157MUV is a power management switch IC for the next generation PC card (ExpressCard^TM) developed by the PCMCIA.
It conforms to the PCMCIA ExpressCard^TM Standard, ExpressCard^TM Compliance Checklist., and ExpressCard^TM
Implementation Guideline, and obtains Compliance ID “EC100395” from PCMCIA. The power switch offers a number of
functions - card detector, and system status detector - which are ideally suited for laptop and desktop computers.
●Features
1) Incorporates three low on-resistance FETs for ExpressCard^TM.
2) Incorporates an FET for output discharge.
3) Incorporates an enabler.
4) Incorporates under voltage lockout (UVLO) protection.
5) Employs an VQFN020V4040 package.
6) Built-in thermal shutdown protector (TSD).
7) Built-in thermal shutdown protector (TSD).
8) Incorporates an overcurrent protection (OCP).
9) Built-in enable signal for PLL
10) Built-in Pull up resistance for detecting ExpressCard^TM
11) Conforms to the ExpressCard^TM Standard.
12) Conforms to the ExpressCard^TM Compliance Checklist.
13) Conforms to the ExpressCard^TM Implementation Guideline.
●Applications
Laptop and desktop computers, and other ExpressCard ^TM equipped digital devices.
●Product Lineup
Parameter
Package
BD4157MUV
VQFN020V4040
“ExpressCard^TM” is a registered trademark registered of the PCMCIA
(Personal Computer Memory Card International Association).
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
1/24
2011.06 - Rev.A