LP2983AIM5-1.2 National Semiconductor, LP2983AIM5-1.2 Datasheet

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LP2983AIM5-1.2

Manufacturer Part Number
LP2983AIM5-1.2
Description
Micropower 150 mA Voltage Regulator in SOT-23 Package For Output Voltages 1.2V Designed for Use with Very Low ESR Output Capacitors
Manufacturer
National Semiconductor
Datasheet

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© 2005 National Semiconductor Corporation
LP2983
Micropower 150 mA Voltage Regulator in SOT-23
Package For Output Voltages ≤ 1.2V
Designed for Use with Very Low ESR Output Capacitors
General Description
The LP2983 is a 150 mA, fixed-output voltage regulator
designed to provide tight voltage regulation in applications
with output voltages ≤ 1.2V.
Using an optimized VIP
cess, the LP2983 delivers unequalled performance in all
critical specifications:
Ground Pin Current: Typically 825 µA
75 µA
Enhanced Stability: The LP2983 is stable with output ca-
pacitor ESR down to zero, which allows the use of ceramic
capacitors on the output.
Smallest Possible Size: SOT-23 package uses absolute
minimum board space.
Precision Output: 1% tolerance output voltages available
(A grade).
Block Diagram
VIP
is a trademark of National Semiconductor Corporation.
@
1 mA load.
(Vertically Integrated PNP) pro-
@
DS200291
150 mA load, and
Features
n Guaranteed 150 mA output current
n Smallest possible size (SOT-23 package)
n Requires minimum external components
n Stable with low-ESR output capacitor
n Low ground pin current at all loads
n Output voltage accuracy 1% (A Grade)
n High peak current capability
n Wide supply voltage range (16V max)
n Low Z
n Overtemperature/overcurrent protection
n −40˚C to +125˚C junction temperature range
Applications
n Cellular Phone
n Palmtop/Laptop Computer
n Personal Digital Assistant (PDA)
n Camcorder, Personal Stereo, Camera
OUT
: 0.3Ω typical (10 Hz to 1 MHz)
20029101
www.national.com
April 2005

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LP2983AIM5-1.2 Summary of contents

Page 1

... Precision Output: 1% tolerance output voltages available (A grade). Block Diagram VIP ™ trademark of National Semiconductor Corporation. © 2005 National Semiconductor Corporation Features n Guaranteed 150 mA output current n Smallest possible size (SOT-23 package) n Requires minimum external components n Stable with low-ESR output capacitor ...

Page 2

Basic Application Circuit *ON/OFF input must be actively terminated. Tie to V **Minimum capacitance is shown to ensure stability (may be increased without limit). Ceramic capacitor required for output (see Application Hints). Connection Diagram www.national.com if this function is not ...

Page 3

... STD LP2983IM5X-0.9 0.9 STD LP2983IM5-0.9 1.0 A LP2983AIM5X-1.0 1.0 A LP2983AIM5-1.0 1.0 STD LP2983IM5X-1.0 1.0 STD LP2983IM5-1.0 1.2 A LP2983AIM5X-1.2 1.2 A LP2983AIM5-1.2 1.2 STD LP2983IM5X-1.2 1.2 STD LP2983IM5-1.2 Package Order Information Marking LEJA LEJA LEJB LEJB LENA LENA LENB LENB LELA LELA LELB LELB ...

Page 4

... 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 sec.) ESD Rating (Note 2) Electrical Characteristics Limits in standard typeface are for T ...

Page 5

Electrical Characteristics Note 2: The ESD rating of pin kV. Note 3: The maximum allowable power dissipation is a function of the maximum junction temperature, T and the ambient temperature The maximum allowable power dissipation ...

Page 6

Typical Performance Characteristics V (NOM) + 25˚C, ON/OFF pin is tied to V OUT A LP2983 Tempco Input Current vs V (0mA Load) IN Input Current vs V (50mA & 150mA Loads) IN www.national.com Unless otherwise specified: C ...

Page 7

Typical Performance Characteristics V (NOM) + 25˚C, ON/OFF pin is tied to V OUT A GND Pin vs Temperature and Load Line Transient Response ∆V = 1V, Load = 150mA IN Line Transient Response ∆V = 13.8V, Load ...

Page 8

Typical Performance Characteristics V (NOM) + 25˚C, ON/OFF pin is tied to V OUT A Ripple Rejection C OUT Short Circuit Current vs Temperature Short Circuit Current, V www.national.com Unless otherwise specified (Continued 2.2µF ...

Page 9

Typical Performance Characteristics V (NOM) + 25˚C, ON/OFF pin is tied to V OUT A Load Transient Response C = 4.7µF OUT Unless otherwise specified (Continued) IN Load Transient Response 20029125 9 = 1µ ...

Page 10

Application Hints EXTERNAL CAPACITORS Like any low-dropout regulator, the LP2983 requires external capacitors for regulator stability. These capacitors must be correctly selected for good performance. Input Capacitor An input capacitor whose capacitance is ≥ 1 µF is required between the ...

Page 11

... BANNED SUBSTANCE COMPLIANCE National Semiconductor manufactures products and uses packing materials that meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...

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