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LMV431 Product Folder

Low-Voltage (1.24V) Adjustable Precision Shunt Regulators

Generic P/N 431

General
Description

Package
& Models

Samples
& Pricing

Reliability
Metrics

Parametric Table

Parametric Table

Temperature Min (deg C)	-40,
Temperature Max (deg C)	85, 70
InputMin Voltage (Volt)	-
InputMax Voltage (Volt)	30
Output Current (mA)	15

Reference Voltage	1.2 V
Initial Accuracy (+/-) Max (%)	1, 1.50
Tempco, max (ppm/C) (ppm)	129, 138
Operating Current (mA)	.10

Datasheet

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
LMV431 LMV431A LMV431B Low-Voltage (1.24V) Adjustable Precision Shunt Regulators	556 Kbytes	19-Aug-03	View Online	Download	Receive via Email
LMV431 LMV431A LMV431B Low-Voltage (1.24V) Adjustable Precision Shunt Regulators (JAPANESE)	468 Kbytes

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Package Availability, Models, Samples & Pricing

Part Number

Package

Status

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking

Type

Pins

MSL/Lead-Free Availability

Lead
Time

Qty

SPICE

IBIS

Qty

$US each

LMV431AIMF

3

Full production

N/A

N/A

1K+

$0.22

reel
of
1000

RLA
XTT

17 weeks

0

LMV431BIMF

3

Full production

N/A

N/A

1K+

$0.33

reel
of
1000

RLB
XTT

17 weeks

0

LMV431AIMFX

3

Full production

N/A

N/A

1K+

$0.22

reel
of
3000

RLA
XTT

17 weeks

0

LMV431BIMFX

3

Full production

N/A

N/A

1K+

$0.33

reel
of
3000

RLB
XTT

17 weeks

0

LMV431ACM5

5

Full production

N/A

N/A

1K+

$0.16

reel
of
1000

N09A
ZXTT

17 weeks

0

LMV431AIM5

5

Full production

N/A

N/A

1K+

$0.22

reel
of
1000

N08A
ZXTT

17 weeks

0

LMV431CM5

5

Full production

N/A

N/A

1K+

$0.16

reel
of
1000

N09B
ZXTT

16 weeks

0

LMV431IM5

5

Full production

N/A

N/A

1K+

$0.19

reel
of
1000

N08B
ZXTT

17 weeks

0

LMV431ACM5X

5

Full production

N/A

N/A

1K+

$0.24

reel
of
3000

N09A
ZXTT

17 weeks

0

LMV431AIM5X

5

Full production

N/A

N/A

1K+

$0.30

reel
of
3000

N08A
ZXTT

17 weeks

0

LMV431CM5X

5

Full production

N/A

N/A

1K+

$0.16

reel
of
3000

N09B
ZXTT

17 weeks

0

LMV431IM5X

5

Full production

N/A

N/A

1K+

$0.19

reel
of
3000

N08B
ZXTT

17 weeks

0

LMV431ACZ

3

Full production

N/A

N/A

1K+

$0.16

box
of
1800

NSXYTT
LMV431
ACZ

12-14 weeks

50000

LMV431AIZ

3

Full production

N/A

N/A

1K+

$0.30

box
of
1800

NSXYTT
LMV431
AIZ

12-14 weeks

50000

LMV431CZ

3

Full production

N/A

N/A

1K+

$0.16

box
of
1800

NSXYTT
LMV431
CZ

12-14 weeks

325000

LMV431IZ

3

Full production

N/A

N/A

1K+

$0.19

box
of
1800

NSXYTT
LMV431
IZ

12-14 weeks

50000

LMV431AC MDC

Full production

N/A

N/A

tray
of
N/A

-

N/A

0

LMV431AI MDC

Full production

N/A

N/A

tray
of
N/A

-

N/A

0

LMV431BC MDC

Full production

N/A

N/A

tray
of
N/A

-

N/A

0

LMV431C MDC

Full production

N/A

N/A

tray
of
N/A

-

N/A

0

LMV431I MDC

Full production

N/A

N/A

tray
of
N/A

-

N/A

0

LMV431AC MWC

Full production

N/A

N/A

wafer jar
of
N/A

-

N/A

0

LMV431AI MWC

Full production

N/A

N/A

wafer jar
of
N/A

-

N/A

0

LMV431BC MWC

Full production

N/A

N/A

wafer jar
of
N/A

-

N/A

0

LMV431C MWC

Full production

N/A

N/A

wafer jar
of
N/A

-

N/A

0

LMV431I MWC

Full production

N/A

N/A

wafer jar
of
N/A

-

N/A

0

General Description

The LMV431, LMV431A and LMV431B are precision 1.24V shunt regulators capable of adjustment to 30V. Negative feedback from the cathode to the adjust pin controls the cathode voltage, much like a non-inverting op amp configuration (Refer to Symbol and Functional diagrams). A two resistor voltage divider terminated at the adjust pin controls the gain of a 1.24V band-gap reference. Shorting the cathode to the adjust pin (voltage follower) provides a cathode voltage of a 1.24V.

The LMV431, LMV431A and LMV431B have respective initial tolerances of 1.5%, 1% and 0.5%, and functionally lends themselves to several applications that require zener diode type performance at low voltages. Applications include a 3V to 2.7V low drop-out regulator, an error amplifier in a 3V off-line switching regulator and even as a voltage detector. These parts are typically stable with capacitive loads greater than 10nF and less than 50pF.

The LMV431, LMV431A and LMV431B provide performance at a competitive price.

Features

Low Voltage Operation/Wide Adjust Range (1.24V/30V)
0.5% Initial Tolerance (LMV431B)
Temperature Compensated for Industrial Temperature Range (39 PPM/°C for the LMV431AI)
Low Operation Current (55µA)
Low Output Impedance (0.25)
Fast Turn-On Response
Low Cost

Applications

Shunt Regulator
Series Regulator
Current Source or Sink
Voltage Monitor
Error Amplifier
3V Off-Line Switching Regulator
Low Dropout N-Channel Series Regulator

Reliability Metrics

Part Number	Process	Early Failure Rate - Rejects	Sample Size (EFR)	PPM *	Rel. Rejects	Device Hours	Long Term Failure Rates (FITS)	MTTF
LMV431AIMF	LB300	0	17700	0	0	1100000	4	311012542
LMV431AIMFX	LB300	0	17700	0	0	1100000	4	311012542
LMV431BIMF	LB300	0	17700	0	0	1100000	4	311012542
LMV431BIMFX	LB300	0	17700	0	0	1100000	4	311012542

For more information on Reliablitity Metrics, please click here.

Design Tools

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
LMV431 Qualification Package	792 Kbytes	24-Jun-1999	View Online	Download	Receive via Email

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[Information as of 15-Jan-2004]