LP2960AIM-3.3/NOPB National Semiconductor, LP2960AIM-3.3/NOPB Datasheet

IC REG LDO 3.3V 500MA 16-SOIC

LP2960AIM-3.3/NOPB

Manufacturer Part Number
LP2960AIM-3.3/NOPB
Description
IC REG LDO 3.3V 500MA 16-SOIC
Manufacturer
National Semiconductor
Datasheet

Specifications of LP2960AIM-3.3/NOPB

Regulator Topology
Positive Fixed
Voltage - Output
3.3V
Voltage - Input
Up to 30V
Voltage - Dropout (typical)
0.47V @ 500mA
Number Of Regulators
1
Current - Output
500mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Other names
*LP2960AIM-3.3
*LP2960AIM-3.3/NOPB
LP2960AIM-3.3

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LP2960AIM-3.3/NOPB
Manufacturer:
NS
Quantity:
140
© 2005 National Semiconductor Corporation
LP2960
Adjustable Micropower 0.5A Low-Dropout Regulators
General Description
The LP2960 is a micropower voltage regulator with very low
dropout voltage (12 mV typical at 1 mA load and 470 mV
typical at 500 mA load) and very low quiescent current
(450 µA typical at 1 mA load).
The LP2960 is ideally suited for battery-powered systems:
the quiescent current increases only slightly at dropout,
which prolongs battery life.
The LP2960 retains all the desirable characteristics of the
LP2953, and offers increased output current.
The error flag goes low any time the output drops more than
5% out of regulation.
Reverse battery protection is provided.
The LP2960 requires only 10 µF of output capacitance for
stability (5V version).
The internal voltage reference is made available for external
use, providing a low-T.C. reference with very good regulation
characteristics.
The part is available in a 16-pin surface mount package.
Block Diagram
DS011962
Features
n Output voltage adjusts from 1.23V–29V
n Guaranteed 500 mA output current
n 5V and 3.3V versions available
n 16-pin SO package
n Low dropout voltage
n Low quiescent current
n Tight line and load regulation
n Low temperature coefficient
n Current limiting and thermal protection
n Logic-level shutdown
n Can be wired for snap-ON and snap-OFF
n Reverse battery protection
Applications
n High-efficiency linear regulator
n Regulator with under-voltage shutdown
n Low dropout battery-powered regulator
n Cellular telephones
01196201
www.national.com
June 2005

Related parts for LP2960AIM-3.3/NOPB

LP2960AIM-3.3/NOPB Summary of contents

Page 1

... The internal voltage reference is made available for external use, providing a low-T.C. reference with very good regulation characteristics. The part is available in a 16-pin surface mount package. Block Diagram © 2005 National Semiconductor Corporation Features n Output voltage adjusts from 1.23V–29V n Guaranteed 500 mA output current n 5V and 3.3V versions available ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Storage Temperature Range Operating Junction Temperature Range LP2960AI/LP2960I Lead Temperature (Soldering, 5 sec.) Electrical Characteristics over the full operating temperature range. Unless otherwise specified µ ...

Page 3

Electrical Characteristics over the full operating temperature range. Unless otherwise specified µF for 5V parts µF for 3.3V parts, Feedback pin is tied to V OUT OUT V = 2V. (Continued) S/D ...

Page 4

Electrical Characteristics over the full operating temperature range. Unless otherwise specified µF for 5V parts µF for 3.3V parts, Feedback pin is tied to V OUT OUT V = 2V. (Continued) S/D ...

Page 5

... Basic Application Circuit Connection Diagram and Ordering Information * Internally Connected to Power Ground 16-Pin Surface Mount Package Top View Order Number LP2960IM-5.0, LP2960AIM-5.0, LP2960IM-3.3 or LP2960AIM-3.3 See NS Package Number M16A 5 01196203 www.national.com 01196202 ...

Page 6

Typical Performance Characteristics mA µF, Feedback pin is tied to V OUT Ground Pin Current Ground Pin Current Ground Pin Current www.national.com Unless otherwise specified: C pin, Output pin is tied to Sense pin, V TAP 01196205 ...

Page 7

Typical Performance Characteristics µF, Feedback pin is tied to V OUT Dropout Voltage vs Temperature Enable Transient Load Transient Unless otherwise specified: C pin, Output pin is tied to Sense pin, V TAP Dropout Voltage vs Load ...

Page 8

Typical Performance Characteristics µF, Feedback pin is tied to V OUT Current Limit vs Temperature Line Transient Response Ripple Rejection www.national.com Unless otherwise specified: C pin, Output pin is tied to Sense pin, V TAP 01196217 01196219 ...

Page 9

Typical Performance Characteristics µF, Feedback pin is tied to V OUT Output Impedance Feedback Bias Current Error Output Voltage vs Input Voltage Unless otherwise specified: C pin, Output pin is tied to Sense pin, V TAP 01196223 ...

Page 10

www.national.com 10 ...

Page 11

Application Hints EXTERNAL CAPACITORS Bypass capacitors on the input and output of the LP2960 are required: without these capacitors, the part will oscillate. A capacitor (whose value is at least 4.7 µF) must be con- nected from the V pin ...

Page 12

Application Hints (Continued) Error Output Timing Diagram * In shutdown mode, ERROR will go high if it has been pulled external supply. To avoid this invalid response, pull-up to regulator output. ** Exact value depends on dropout ...

Page 13

Application Hints (Continued) Power Dissipation Diagram The next parameter which must be calculated is the maxi- mum allowable temperature rise, T (max). This is calcu- R lated by using the formula: T (max (max) − ...

Page 14

Typical Applications Low T.C. Current Sink 5V Regulator with Error Flags for Low BATTERY and OUT OF REGULATION * Connect to Logic or µP control inputs. LOW BATT flag warns the user that the battery has discharged down to about ...

Page 15

Typical Applications (Continued) 5V Regulator with Timed Power-On Reset Timing Diagram for Timed Power-On Reset * Meg 0.1 µF 01196236 01196237 www.national.com ...

Page 16

... Tel: 1-800-272-9959 Deutsch Tel: +49 (0) 69 9508 6208 English www.national.com Français Tel: +33 ( 8790 Order Number LP2960IM-5.0, LP2960AIM-5.0, LP2960IM-3.3 or LP2960AIM-3.3 NS Package Number M16A 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system affect its safety or effectiveness ...

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