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零件编号 | UM17525 | ||
描述 | VLDO Linear Regulator | ||
制造商 | Union Semiconductor | ||
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1 Page
UM175XX
300mA, Micropower, VLDO Linear Regulator
UM175XX SOT23-5
General Description
The UM175XX series are VLDO (very low dropout) linear regulators designed for low power
portable applications. Typical output noise is only 75μVRMS and maximum dropout is just 90mV
at the load current of 150mA.The internal P-channel MOSFET pass transistor requires no base
current, allowing the device to draw only 100μA during normal operation at the maximum load
current of 300mA.
Other features include high output voltage accuracy, excellent transient response, under voltage
lockout, stability with ultralow ESR ceramic capacitors as small as 1μF, short-circuit and thermal
overload protection and output current limiting.
The UM175XX series are available in a low profile SOT23-5 package.
Applications
z Bluetooth/802.11 Cards
z PDAs and Notebook Computers
z Portable Instruments and
Battery-Powered Systems
z Cellular Phones
Features
z Very Low Dropout: 90mV(max) at 150mA
z Maximum Input Voltage: 6.0V
z Low Noise:75μVRMS (10Hz to 100kHz)
z ±2%Voltage Accuracy at 150mA
z Fast Transient Response
z Under Voltage Lockout
z Fixed Output Voltage:
3.3V/3.0V/2.8V/2.7V/2.5V/1.8V/1.5V/1.3V/
1.2V
z Output Current Limit
z No Protection Diodes Needed
z Stable with 1μF Output Capacitor
z Short-Circuit and Thermal Overload
Protection
z Low Profile SOT23-5 Package
Pin Configurations
Top View
UM175XX
M: Monthly Code
SOT23-5
________________________________________________________________________
http://www.union-ic.com Rev.02 Oct.2008
1/8
UM175XX
IMPORTANT NOTICE
The information in this document has been carefully reviewed and is believed to be
accurate. Nonetheless, this document is subject to change without notice. Union assumes
no responsibility for any inaccuracies that may be contained in this document, and makes
no commitment to update or to keep current the contained information, or to notify a
person or organization of any update. Union reserves the right to make changes, at any
time, in order to improve reliability, function or design and to attempt to supply the best
product possible.
Union Semiconductor, Inc
Add: 7F, No. 5, Bibo Road, Shanghai 201203
Tel: 021-51097928
Fax: 021-51026018
Website: www.union-ic.com
________________________________________________________________________
http://www.union-ic.com Rev.02 Oct.2008
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页数 | 8 页 | ||
下载 | [ UM17525.PDF 数据手册 ] |
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