LP3879SD-1.0/NOPB National Semiconductor, LP3879SD-1.0/NOPB Datasheet

IC REG 800MA FIXED-OUT LN 8-LLP

LP3879SD-1.0/NOPB

Manufacturer Part Number
LP3879SD-1.0/NOPB
Description
IC REG 800MA FIXED-OUT LN 8-LLP
Manufacturer
National Semiconductor
Datasheet

Specifications of LP3879SD-1.0/NOPB

Regulator Topology
Positive Fixed
Voltage - Output
1V
Voltage - Input
2.5 ~ 6 V
Number Of Regulators
1
Current - Output
800mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-LLP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Dropout (typical)
-
Current - Limit (min)
-
Other names
LP3879SD-1.0
LP3879SD-1.0TR

Available stocks

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Manufacturer
Quantity
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Part Number:
LP3879SD-1.0/NOPB
Manufacturer:
National Semiconductor
Quantity:
1 794
© 2006 National Semiconductor Corporation
LP3879
Micropower 800mA Low Noise "Ceramic Stable" Voltage
Regulator for Low Voltage Applications
General Description
The LP3879 is a 800 mA fixed-output voltage regulator
designed to provide high performance and low noise in
applications requiring output voltages between 1.0V and
1.2V.
Using an optimized VIP
cess, the LP3879 delivers superior performance:
Ground Pin Current: Typically 5.5 mA
200 µA
Low Power Shutdown: The LP3879 draws less than 10 µA
quiescent current when shutdown pin is pulled low.
Precision Output: Guaranteed output voltage accuracy is
1% at room temperature.
Low Noise: Broadband output noise is only 18 µV (typical)
with 10 nF bypass capacitor.
Basic Application Circuit
*Capacitance values shown are minimum required to assure stability. Larger output capacitor provides improved dynamic response. Output capacitor must
meet ESR requirements (see Application Information).
**The Shutdown pin must be actively terminated (see Application Information). Tie to INPUT (Pin 4) if not used.
VIP
is a trademark of National Semiconductor Corporation.
@
100 µA load.
(Vertically Integrated PNP) pro-
@
DS201613
800 mA load, and
Features
n Standard output voltage: 1.00V, 1.20V
n Custom voltages available from 1.0V to 1.2V (50 mV
n Input voltage: 2.5 to 6V
n 1% initial output accuracy
n Designed for use with low ESR ceramic capacitors
n Very low output noise
n Sense option improves load regulation
n 8 Lead PSOP and LLP surface mount packages
n
n Low ground pin current at all loads
n High peak current capability
n Over-temperature/over-current protection
n -40˚C to +125˚C junction temperature range
Applications
n ASIC Power Supplies In:
n DSP and FPGA Power Supplies
n SMPS Post-Regulator
n Medical Instrumentation
increments)
<
10 µA quiescent current in shutdown
- Desktops, Notebooks and Graphic Cards
- Set Top Boxes, Printers and Copiers
20161303
www.national.com
June 2006

Related parts for LP3879SD-1.0/NOPB

LP3879SD-1.0/NOPB Summary of contents

Page 1

... ESR requirements (see Application Information). **The Shutdown pin must be actively terminated (see Application Information). Tie to INPUT (Pin 4) if not used. VIP ™ trademark of National Semiconductor Corporation. © 2006 National Semiconductor Corporation Features n Standard output voltage: 1.00V, 1.20V n Custom voltages available from 1.0V to 1.2V (50 mV increments) n Input voltage: 2 ...

Page 2

... LP3879MR-1.2 STD LP3879MRX-1.2 STD LP3879SD-1.2 STD LP3879SDX-1.2 The capacitor connected between BYPASS and GROUND lowers output noise voltage level and is required for loop stability. DO NOT CONNECT. This pin is used for post package test and must be left floating. Device ground. Input source voltage. ...

Page 3

... 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 Lead Temperature (Soldering, 5 seconds) ESD Rating (Note 2) Shutdown Pin Electrical Characteristics Limits in standard typeface are for T J Limits are guaranteed through design, testing, or correlation. The limits are used to calculate National’ ...

Page 4

Electrical Characteristics Limits in standard typeface are for T Limits are guaranteed through design, testing, or correlation. The limits are used to calculate National’s Average Outgoing Quality Level (AOQL). Unless otherwise specified nF. BYPASS Symbol Parameter ...

Page 5

Typical Performance Characteristics C = 4.7 µ µ 2V OUT S Temperature GND GND Load V vs Temperature OUT Unless otherwise specified nF ...

Page 6

Typical Performance Characteristics C = 4.7 µ µ 2V OUT S/D Ripple Rejection Line Transient Response Line Transient Response www.national.com Unless otherwise specified nF 25˚C. (Continued) BYP J ...

Page 7

Typical Performance Characteristics C = 4.7 µ µ 2V OUT S/D Line Transient Response Load Transient Response Unless otherwise specified nF 25˚C. (Continued) BYP J 20161334 20161343 7 ...

Page 8

Block Diagram Application Information PACKAGE INFORMATION The LP3879 is offered in the 8 lead PSOP or LLP surface mount packages to allow for increased power dissipation compared to the SO-8 and Mini SO-8. EXTERNAL CAPACITORS Like any low-dropout regulator, the ...

Page 9

Application Information when selecting an output capacitor so that the minimum required amount of output capacitance is provided over the full operating temperature range. (See Capacitor Character- istics section). The output capacitor must be located not more than 0.5" from ...

Page 10

Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 8 Lead LLP Surface Mount PackagePackage NS Package Number SDC08A 8-Lead PSOP Package (PSOP-8) NS Package Number MRA08A 10 ...

Page 11

... BANNED SUBSTANCE COMPLIANCE National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C2) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/quality/green. ...

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