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BL05 Datasheet

  • BL05

  • High-Side Power Switch IC

  • 10頁

  • AIMTRON

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AT1605
High-Side Power Switch IC
Features
鈥?Operating Voltage:1.8V to 5.5V
鈥?Built-in N-MOS, 100m鈩?typ) R
DS,ON
鈥?Quiescent Current: 60碌A(chǔ)(typ)
鈥?Shutdown Current <1碌A(chǔ)
鈥?Built-in Current Limit
鈥?Built-in Soft-Start.
鈥?Built-in Under Voltage Lock Function
鈥?Built-in Thermal Protection
鈥?TTL Control Input
鈥?SOT-23-5 Package
General Description
The AT1605 is a smart high-side power switch to
be able to supply up 2.0A from input source. The
device features preventable reverse current flow
from OUT to Input by free of parasitic body diode,
when output voltage exceeds the input voltage, the
N-MOS is turned off. The AT1605 includes
built-in low on-resistance of NMOS to saved
conductive loss, charge pump circuitry to drive
N-MOS, built-in current limit, soft-start, thermal
protection and under voltage lock function.
Operating voltage range between 1.8V and 5.5V
supports one Li-lon or adaptor source.
The device is ideal for notebook computer,
self-powered and bus powered USB application.
The low quiescent current is conducive to saved
power consumption. The AT1605 is available in
5-pin SOT-23-5 packages.
Applications
鈥?USB Power Measurement
鈥?Notebook computers
鈥?Battery-Charger Circuits
鈥?Hot Plug-in Power Supplies
Block Diagram
EN
VIN
+
BandGap
Reference
-
Current
Limit
N- MOS
Clock
Control
Logic
VOUT
Charge pump
UVLO
Thermal
Protection
GND
Aimtron reserves the right without notice to change this circuitry and specifications.
7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300, Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW:
http://www.aimtron.com.tw
4/26/2006 REV:1.1
Email:
service@aimtron.com.tw
1

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