lp2980im5-adjep National Semiconductor Corporation, lp2980im5-adjep Datasheet

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lp2980im5-adjep

Manufacturer Part Number
lp2980im5-adjep
Description
Micropower Sot, 50 Ma Ultra Low-dropout Adjustable Voltage Regulator
Manufacturer
National Semiconductor Corporation
Datasheet
© 2006 National Semiconductor Corporation
LP2980-ADJ
Micropower SOT, 50 mA Ultra Low-Dropout Adjustable
Voltage Regulator
General Description
The LP2980-ADJ is a 50 mA adjustable voltage regulator
designed to provide ultra low dropout in battery powered
applications.
Using an optimized VIP
cess, the LP2980-ADJ delivers unequalled performance in
all specifications critical to battery-powered designs:
Adjustable Output: output voltage can be set from 1.23V to
15V.
Precision Reference: 0.75% tolerance.
Dropout Voltage: typically 120 mV
@
Ground Pin Current: typically 320 µA
µA
Sleep Mode: less than 1 µA quiescent current when on/off
pin is pulled low.
Smallest Possible Size: SOT-23 package uses minimum
board space.
Block Diagram
VIP
1 mA load.
@
is a trademark of National Semiconductor Corporation.
1 mA load.
(vertically Integrated PNP) pro-
@
50 mA load, and 7 mV
@
DS100001
50 mA load, and 80
10000101
Features
n Ultra low dropout voltage
n Output adjusts from 1.23V to 15V
n Guaranteed 50 mA output current
n Uses tiny SOT-23 package
n Requires few external components
n
n Low ground pin current at all loads
n High peak current capability (150 mA typical)
n Wide supply voltage range (2.5V–16V)
n Overtemperature/overcurrent protection
n −40˚C to +125˚C Junction temperature range
Applications
n Cellular Phone
n Palmtop/Laptop Computer
n Camcorder, Personal Stereo, Camera
Connection Diagram
<
For ordering Information, refer to Table 1 in this
1 µA quiescent current when shutdown
5-Lead Small Outline Package (M5)
See NS Package Number MF05A
document
Top View
10000102
September 2006
www.national.com

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lp2980im5-adjep Summary of contents

Page 1

... Smallest Possible Size: SOT-23 package uses minimum board space. Block Diagram VIP ™ trademark of National Semiconductor Corporation. © 2006 National Semiconductor Corporation Features n Ultra low dropout voltage n Output adjusts from 1.23V to 15V n Guaranteed 50 mA output current n Uses tiny SOT-23 package n Requires few external components < ...

Page 2

... FULL LOAD CURRENT RANGE (SEE APPLICATION HINTS). Ordering Information TABLE 1. Package Marking and Ordering Information Grade Order Information STD LP2980IM5X-ADJ STD LP2980IM5-ADJ For fixed output voltage versions, see LP2980 and LP2980LV datasheets. www.national.com 10000103 IF IN Package Marking L06B 3k Units on Tape and Reel ...

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 Temp. (Soldering, 5 seconds) ESD Rating (Note 2) Power Dissipation (Note ...

Page 4

Electrical Characteristics Note 1: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the device outside of its rated operating conditions. Note 2: The ESD rating of pins 3 ...

Page 5

Typical Performance Characteristics mA, ON/OFF pin tied ADJ Ground Pin Current vs. Temperature Input Current vs. V Line Transient Response Unless otherwise specified 86.6k, and test circuit is as ...

Page 6

Typical Performance Characteristics mA, ON/OFF pin tied Short Circuit Current ADJ Pin Bias Current vs. Load Current ON/OFF Threshold vs.Temperature www.national.com Unless otherwise specified 86.6k, and test circuit is ...

Page 7

Typical Performance Characteristics mA, ON/OFF pin tied ADJ Ripple Rejection Application Hints EXTERNAL CAPACITORS Like any low-dropout regulator, the external capacitors must be selected carefully to assure regulator loop stability. INPUT ...

Page 8

Application Hints (Continued) Off-brand capacitors should be avoided, as some poor qual- > ity Tantalums are seen with ESR’s causes oscillation problems. One caution about Tantalums if they are used on the input: the ESR of a Tantalum is low ...

Page 9

Physical Dimensions inches (millimeters) unless otherwise noted 5-Lead Small Outline Package (M5) NS Package Number MF05A National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at ...

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