National Semiconductor LP2983 Technical data

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LP2983
Micropower 150 mA Voltage Regulator in SOT-23
Package For Output Voltages ≤ 1.2V

Designed for Use with Very Low ESR Output Capacitors

LP2983 Micropower 150 mA Voltage Regulator in SOT-23 Package For Output Voltages ≤ 1.2V

October 2001

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).

1 mA load.

™

(Vertically Integrated PNP) pro-

@

150 mA load, and

Block Diagram

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

: 0.3Ω typical (10 Hz to 1 MHz)

OUT

Applications

n Cellular Phone
n Palmtop/Laptop Computer
n Personal Digital Assistant (PDA)
n Camcorder, Personal Stereo, Camera

20029101

VIP™is a trademark of National Semiconductor Corporation.

© 2001 National Semiconductor Corporation DS200291 www.national.com

Basic Application Circuit

LP2983

*ON/OFF input must be actively terminated. Tie to VINif this function is not to be used.

**Minimum capacitance is shown to ensure stability (may be increased without limit). Ceramic capacitor required for output (see Application Hints).

20029102

Connection Diagram

5-Lead Small Outline Package (M5)

Top View

See NS Package Number MF05A

For ordering information see

20029103

Table 1

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Ordering Information

TABLE 1. Package Marking and Ordering Information

Output Voltage

(V)

0.9 A LP2983AIM5X-0.9 LEJA 3000 Units on Tape and Reel

0.9 A LP2983AIM5-0.9 LEJA 1000 Units on Tape and Reel

0.9 STD LP2983IM5X-0.9 LEJB 3000 Units on Tape and Reel

0.9 STD LP2983IM5-0.9 LEJB 1000 Units on Tape and Reel

1.0 A LP2983AIM5X-1.0 LENA 3000 Units on Tape and Reel

1.0 A LP2983AIM5-1.0 LENA 1000 Units on Tape and Reel

1.0 STD LP2983IM5X-1.0 LENB 3000 Units on Tape and Reel

1.0 STD LP2983IM5-1.0 LENB 1000 Units on Tape and Reel

1.2 A LP2983AIM5X-1.2 LELA 3000 Units on Tape and Reel

1.2 A LP2983AIM5-1.2 LELA 1000 Units on Tape and Reel

1.2 STD LP2983IM5X-1.2 LELB 3000 Units on Tape and Reel

1.2 STD LP2983IM5-1.2 LELB 1000 Units on Tape and Reel

Grade Order Information

Package

Marking

Supplied as:

LP2983

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Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

LP2983

please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.

Storage Temperature Range −65˚C to +150˚C
Operating Junction Temperature

Range −40˚C to +125˚C
Lead Temp. (Soldering, 5 sec.) 260˚C

Power Dissipation (Note 3) Internally Limited
Input Supply Voltage (Survival) −0.3V to +16V
Input Supply Voltage (Operating) 2.2V to +16V
Shutdown Input Voltage (Survival) −0.3V to +16V
Output Voltage Survival, (Note 4) −0.3V to +9V
I

(Survival) Short Circuit

OUT

Input-Output Voltage Survival,(Note 5) −0.3V to +16V

ESD Rating (Note 2) 2 kV

Electrical Characteristics

Limits in standard typeface are for TJ= 25˚C. and limits in boldface type apply over the full operating temperature range. Un­less otherwise specified: V

Symbol Parameter Conditions Typ

∆V

O

Output Voltage
Tolerance

Output Voltage VO(NOM)+1V ≤ VIN≤ 16V 0.01 0.016 0.016
Line Regulation 0.032 0.032

I

GND

V

(min) Minimum VINrequired

IN

Ground Pin Current IL= 0 65 95 95

to maintain Output
Regulation

V

ON/OFF

ON/OFF Input Voltage
(Note 7)

I

ON/OFF

e

n

ON/OFF Input Current V

Output Noise BW = 10 Hz to 100 kHz,
Voltage (RMS) C

Ripple Rejection f=1kHz

(SC) Short Circuit Current RL= 0 (Steady State)

I

O

I

(PK) Peak Output Current V

O

(NOM) + 1V, IL= 1 mA, CIN= 1 µF, C

IN=VO

1mA≤I

1mA≤I

I

= 1 mA 75 110 110

L

I

= 10 mA 120 220 220

L

I

= 50 mA 300 500 500

L

I

= 150 mA 825 1200 1500

L

V

ON/OFF

V

ON/OFF

≤50 mA −2.0 2.0 −2.5 2.5

L

≤150 mA −2.5 2.5 −3.0 3.0

L

<

0.15V 6 12 12

<

0.05V 0.2 2 2

High = O/P ON 1.4 1.6 1.6
Low = O/P OFF 0.1 0.05 0.05

= 0 0.01 −2 −2

ON/OFF

V

V

C

=5V 5 15 15

ON/OFF

=10µF 60 µV

OUT

= 1.2V

OUT

= 2.2 µF

OUT

≥ Vo(NOM) −5% 250

OUT

= 2.2 µF, V

OUT

ON/OFF

= 2V.

LP2983AI-X.X LP2983I-X.X

Min Max Min Max

−1.0 1.0 −1.5 1.5

−2.5 2.5 −3.5 3.5

−3.5 3.5 −4.0 4.0

125 125

170 170

400 400

900 900

2000 2000

2.05 2.20 2.20

65 dB

400

Protected

Units(Note 6) (Note 6)

%

%/V

µA

V

µA

mA(Note 8)

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