National Semiconductor LP3983 Technical data
LP3983
Micropower, Low Quiescent Current, CMOS Voltage
Regulator in micro SMD Package
LP3983 Micropower, Low Quiescent Current, CMOS Voltage Regulator in micro SMD Package
May 2003
General Description
The LP3983 is a fixed voltage low current regulator.
The LP3983 is ideally suited to standby type applications in
battery powered equipment, it allows the lifetime of the battery to be maximized. The device can be controlled via an
Enable(disable) control and can thus be used by the system
to further extend the battery lifetime by reducing the power
consumption to virtually zero.
Performance is specified for a -40˚C to 125˚C temperature
range.
For output voltages other than those stated and alternative
package options, please contact your local NSC sales office.
Features
n Miniature 5 pin package
n Logic Controlled Enable
n No Noise Bypass Capacitor Required
n Stable with Low ESR Ceramic Capacitors
n Fast turn ON
n Short Circuit Protection
Package
n Tiny 5 Pin micro SMD 828µm by 1387µm
Key Specifications
n Input Voltage Range 2.5 to 6.0V
n Output Voltages 1.6, 1.8, & 2.5
n Output Current 5mA
n Output Capacitors 1µF Low ESR
n Virtually Zero I
n Low I
n PSRR 10dB
n Fast Start Up 170µs
(Enabled) 14µA
Q
(Disabled) 1.0µA
Q
Applications
n GSM Portable Phones
n CDMA Cellular Handsets
n Bluetooth Devices
n Portable Information Appliances
Typical Application Circuit
20057601
© 2003 National Semiconductor Corporation DS200576 www.national.com
Block Diagram
LP3983
Connection Diagrams
5 Pin micro SMD Package 5 Pin micro SMD Package
LP3983
20057602
Top View
20057603
See NS Package Number TLA05
Bottom View
20057604
See NS Package Number TLA05
www.national.com 2
Pin Descriptions
Name Pin No. Name and Function
V
EN
A1 Enable Input Logic,
Enables regulator when ≥ 1.2V. Disables regulator when ≤ 0.5V
GND B2 Common Ground
V
OUT
V
IN
C1 Voltage Output. Connect this Output to the Load Circuit.
C3 Unregulated supply Input.
N/C A3 No Connection. There should be no electrical connection made to
this pin.
Ordering Information
TL refers as 0.300mm bump size with package height of 0.6mm
Output
Voltage (V)
Grade
1.6 STD LP3983ITL-1.6 LP3983ITLX-1.6
1.8 STD LP3983ITL-1.8 LP3983ITLX-1.8
2.5 STD LP3983ITL-2.5 LP3983ITLX-2.5
* Please contact National Semiconductor for availability
LP3983 Supplied as 250
Units, Tape and Reel
LP3983
LP3983 Supplied as 3000
Units, Tape and Reel
www.national.com3
Loading...