LP3965ES-2.5EP
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器件描述：1.5A Fast Ultra Low Dropout Linear Regulators
器件厂商：NSC [
National Semiconductor]
厂商主页：http://www.national.com
文件大小：897.11KB
文件页数：20
PDF阅读：LP3965ES-2.5EP.pdf (点击阅读器件资料)
摘要：
LP3962EP/LP3965EP
1.5A Fast Ultra Low Dropout Linear Regulators
General Description
The LP3962EP/LP3965EP series of fast ultra low-dropout
linear regulators operate from a +2.5V to +7.0V input supply.
Wide range of preset output voltage options are available.
These ultra low dropout linear regulators respond very fast to
step changes in load which makes them suitable for low
voltage microprocessor applications. The LP3962EP/
LP3965EP are developed on a CMOS process which allows
low quiescent current operation independent of output load
current. This CMOS process also allows the LP3962EP/
LP3965EP to operate under extremely low dropout condi-
tions.
Dropout Voltage: Ultra low dropout voltage; typically 38mV
at 150mA load current and 380mV at 1.5A load current.
Ground Pin Current: Typically 5mA at 1.5A load current.
Shutdown Mode: Typically 15?A quiescent current when
the shutdown pin is pulled low.
Error Flag: Error flag goes low when the output voltage
drops 10% below nominal value (for LP3962EP).
SENSE: Sense pin improves regulation at remote loads.
(For LP3965EP)
Precision Output Voltage: Multiple output voltage options
are available ranging from 1.2V to 5.0V and adjustable
(LP3965EP), with a guaranteed accuracy of ±1.5% at room
temperature, and ±3.0% over all conditions (varying line,
load, and temperature).
ENHANCED PLASTIC
Extended Temperature Performance of ?40?C to +125?C
Baseline Control - Single Fab & Assembly Site
Process Change Notification (PCN)
Qualification & Reliability Data
Solder (PbSn) Lead Finish is standard
Enhanced Diminishing Manufacturing Sources (DMS)
Support
Features
n Ultra low dropout voltage
n Low ground pin current
n Load regulation of 0.04%
n 15?A quiescent current in shutdown mode
n Guaranteed output current of 1.5A DC
n Available in SOT-223,TO-263 and TO-220 packages
n Output voltage accuracy ± 1.5%
n Error flag indicates output status (LP3962EP)
n Sense option improves better load regulation
(LP3965EP)
n Extremely low output capacitor requirements
n Overtemperature/overcurrent protection
Applications
n Microprocessor power supplies
n GTL, GTL+, BTL, and SSTL bus terminators
n Power supplies for DSPs
n SCSI terminator
n Post regulators
n High efficiency linear regulators
n Selected Military Applications
n Selected Avionics Applications
Ordering Information
PART NUMBER VID PART NUMBER NS PACKAGE NUMBER (Note 3)
LP3962ES-2.5EP V62/04751-01 TS5B
LP3965ES-2.5EP V62/04751-02 TS5B
LP3965ES-ADJEP V62/04751-03 TS5B
(Notes 1, 2) TBD TBD
Note 1: For the following (Enhanced Plastic) version, check for availability: LP3962EMP-1.8EP, LP3962EMP2.5EP, LP3962EMP-3.3EP, LP3962EMP-
5.0EP, LP3962EMPX1.8EP, LP3962EMPX2.5EP, LP3962EMPX3.3EP, LP3962EMPX5.0EP, LP3962ET-1.8EP, LP3962ET-2.5EP, LP3962ET-3.3EP,
LP3962ET-5.0EP, LP3962ES-1.8EP, LP3962EX-3.3EP, LP3962ES-5.0EP, LP3962ESX-1.8EP, LP3962ESX-2.5EP, LP3962ESX-3.3EP, LP3962ESX-5.0EP,
LP3965EMP-1.8EP, LP3965EMP-2.5EP, LP3965EMP-3.3EP, LP3965EMP-5.0EP, LP3965EMP-ADJEP, LP3965EMPX1.8EP, LP3965EMPX2.5EP,
LP3965EMPX3.3EP, LP3965EMPX5.0EP, LP3965EMPXADJEP, LP3965ET-1.8EP, LP3965ET-2.5EP, LP3965ET-3.3EP, LP3965ET-5.0EP, LP3965ET-
ADJEP, LP3965ES-1.8EP, LP3965ES-3.3EP, LP3965ES-5.0EP, LP3965ESX-1.8EP, LP3965ESX-2.5EP, LP3965ESX-3.3EP, LP3965ESX-5.0EP,
LP3965ESX-ADJEP. Parts listed with an "X" are provided in Tape & Reel and parts without an "X" are in Rails.
Note 2: FOR ADDITIONAL ORDERING AND PRODUCT INFORMATION, PLEASE VISIT THE ENHANCED PLASTIC WEB SITE AT: www.national.com/
mil
Note 3: Refer to package details under Physical Dimensions
January 2005
LP3962EP/LP3965EP
1.5A
Fast
Ultra
Low
Dropout
Linear
Regulators
? 2005 National Semiconductor Corporation DS201147 www.national.com
