LM431

LM431 的PDF资料

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LM431 的货源和报价

LM431 的相关技术信息

LM431 - Adjustable Precision Zener Shunt Regulator

Features

• Average temperature coefficient 50 ppm/°C

• Temperature compensated for operation over the full temperature range

• Programmable output voltage

• Fast turn-on response

• Low output noise

• LM431 in micro SMD package

• See AN-1112 for micro SMD considerations

General Description
The LM431 is a 3-terminal adjustable shunt regulator with guaranteed temperature stability over the entire temperature range of operation. More...
Typical Application
click for larger image

Parametric Table expand

Parametric Table collapse

Reference Voltage Adjustable

Operating Current 1 mA

Output Current 100 mA

Reference Voltage Adjustable

Initial Accuracy (+/-) Max 1 %

Tempco, max (ppm/C) 54 ppm

Operating Current 1 mA

Output Current 100 mA

Temperature Min -40 deg C

Temperature Max 85 deg C

View Using Catalog

Typical Performance
click for larger image

Also Recommended

LMV431 Low Voltage (1.24V)

Additional Resources
Online Seminars

The evolution of voltage regulators with focus on LDO`s
Design Tools (see below)
Application Notes (see below)

Connection Diagram
click for larger image

Package Availability, Models, Samples & Pricing

Part Number Package Factory Lead Time Models Budgetary Pricing Std
Pack
Size Package
Marking
Format

Type Pins Spec. MSL
Rating Peak
Reflow RoHS
Report Weeks Qty Qty $US each

LM431AIBP MICRO SMD 4 STD 1 260 RoHS Lifetime buy N/A

1K+ $0.20 reel
of
250 X
I

6 weeks 500

LM431AIBPX MICRO SMD 4 STD 1 260 RoHS Lifetime buy N/A
1K+ $0.20 reel
of
3000 X
I

6 weeks 5000

LM431ACM SOIC NARROW 8 STD
NOPB 1
1 235
260 RoHS Full production N/A

1K+ $0.19 rail
of
95 NSZXTT
LM431
ACM

6 weeks 7500

LM431AIM SOIC NARROW 8 STD
NOPB 1
1 235
260 RoHS Full production N/A

1K+ $0.20 rail
of
95 NSZXTT
LM431
AIM

6 weeks 5000

LM431BCM SOIC NARROW 8 STD
NOPB 1
1 235
260 RoHS Full production N/A

1K+ $0.21 rail
of
95 NSZXTT
431
BCM

6 weeks 15000

LM431BIM SOIC NARROW 8 STD
NOPB 1
1 235
260 RoHS Full production N/A

1K+ $0.22 rail
of
95 NSZXTT
431
BIM

6 weeks 3000

LM431CCM SOIC NARROW 8 NOPB 1 260 RoHS Full production N/A

1K+ $0.35 rail
of
95 NSZXTT
431
CCM

6 weeks 2500

LM431CIM SOIC NARROW 8 STD
NOPB 1
1 235
260 RoHS Full production N/A

1K+ $0.38 rail
of
95 NSZXTT
431
CIM

6 weeks 5000

LM431ACMX SOIC NARROW 8 STD
NOPB 1
1 235
260 RoHS Full production N/A

1K+ $0.19 reel
of
2500 NSZXTT
LM431
ACM

6 weeks 15000

LM431AIMX SOIC NARROW 8 STD
NOPB 1
1 235
260 RoHS Full production N/A

1K+ $0.20 reel
of
2500 NSZXTT
LM431
AIM

6 weeks 25000

LM431BCMX SOIC NARROW 8 STD
NOPB 1
1 235
260 RoHS Full production N/A
1K+ $0.21 reel
of
2500 NSZXTT
431
BCM

6 weeks 75000

LM431BIMX SOIC NARROW 8 STD
NOPB 1
1 235
260 RoHS Full production N/A

1K+ $0.22 reel
of
2500 NSZXTT
431
BIM

6 weeks 7500

LM431CCMX SOIC NARROW 8 STD
NOPB 1
1 235
260 RoHS Full production N/A
1K+ $0.35 reel
of
2500 NSZXTT
431
CCM

6 weeks 3000

LM431CIMX SOIC NARROW 8 STD
NOPB 1
1 235
260 RoHS Full production N/A

1K+ $0.38 reel
of
2500 NSZXTT
431
CIM

6 weeks 5000

LM431ACM3 SOT-23 3 STD
NOPB 1
1 260
260 RoHS Full production N/A

1K+ $0.19 reel
of
1000 N1F
XTT

6 weeks 20000

LM431AIM3 SOT-23 3 STD
NOPB 1
1 260
260 RoHS Full production N/A

1K+ $0.20 reel
of
1000 N1E
XTT

6 weeks 20000

LM431BCM3 SOT-23 3 STD
NOPB 1
1 260
260 RoHS Full production N/A

1K+ $0.21 reel
of
1000 N1D
XTT

6 weeks 25000

LM431BIM3 SOT-23 3 STD
NOPB 1
1 260
260 RoHS Full production N/A

1K+ $0.22 reel
of
1000 N1C
XTT

6 weeks 7500

LM431CCM3 SOT-23 3 STD
NOPB 1
1 260
260 RoHS Full production N/A

1K+ $0.35 reel
of
1000 N1B
XTT

6 weeks 40000

LM431CIM3 SOT-23 3 STD
NOPB 1
1 260
260 RoHS Full production N/A

1K+ $0.38 reel
of
1000 N1A
XTT

6 weeks 2500

LM431ACM3X SOT-23 3 STD
NOPB 1
1 260
260 RoHS Full production N/A

1K+ $0.19 reel
of
3000 N1F
XTT

6 weeks 75000

LM431AIM3X SOT-23 3 STD
NOPB 1
1 260
260 RoHS Full production N/A

1K+ $0.20 reel
of
3000 N1E
XTT

6 weeks 15000

LM431BCM3X SOT-23 3 STD
NOPB 1
1 260
260 RoHS Full production N/A

1K+ $0.21 reel
of
3000 N1D
XTT

6 weeks 100000

LM431BIM3X SOT-23 3 STD
NOPB 1
1 260
260 RoHS Full production N/A

1K+ $0.22 reel
of
3000 N1C
XTT

6 weeks 5000

LM431CCM3X SOT-23 3 STD
NOPB 1
1 260
260 RoHS Full production N/A

1K+ $0.35 reel
of
3000 N1B
XTT

6 weeks 40000

LM431CIM3X SOT-23 3 STD
NOPB 1
1 260
260 RoHS Full production N/A

1K+ $0.38 reel
of
3000 N1A
XTT

6 weeks 7500

LM431AITPX MICRO SMD 4 NOPB 1 260 RoHS Lifetime buy N/A
1K+ $0.20 reel
of
3000 X
I

N/A N/A

LM431ACZ TO-92 3 STD
NOPB 1
1 NA
NA RoHS Full production N/A

1K+ $0.19 box
of
1800 NSXYTT
LM431
ACZ

6 weeks 20000

LM431AIZ TO-92 3 STD
NOPB 1
1 NA
NA RoHS Full production N/A

1K+ $0.20 box
of
1800 NSXYTT
LM431
AIZ

6 weeks 50000

LM431BCZ TO-92 3 STD
NOPB 1
1 NA
NA RoHS Full production N/A

1K+ $0.24 box
of
1800 NSXYTT
LM431
BCZ

6 weeks 5000

LM431BIZ TO-92 3 STD
NOPB 1
1 NA
NA RoHS Full production N/A

1K+ $0.22 box
of
1800 NSXYTT
LM431
BIZ

6 weeks 7500

LM431CCZ TO-92 3 STD
NOPB 1
1 NA
NA RoHS Full production N/A

1K+ $0.35 box
of
1800 NSXYTT
LM431
CCZ

6 weeks 2000

LM431CIZ TO-92 3 NOPB 1 NA RoHS Full production N/A

1K+ $0.38 box
of
1800 NSXYTT
LM431
CIZ

6 weeks 7500

LM431AC MDC Unpackaged Die Full production N/A
CALL tray
of
N/A -

N/A 5000

LM431BC MWC Wafer Full production N/A
CALL wafer jar
of
N/A -

General Description

The LM431 is a 3-terminal adjustable shunt regulator with guaranteed temperature stability over the entire temperature range of operation. It is now available in a chip sized package (4-Bump micro SMD) using National's micro SMD package technology. The output voltage may be set at any level greater than 2.5V (V_REF) up to 36V merely by selecting two external resistors that act as a voltage divided network. Due to the sharp turn-on characteristics this device is an excellent replacement for many zener diode applications.

Application Notes

Title Size in Kbytes Date

AN-1112: Application Note 1112 Micro SMD Wafer Level Chip Scale Package 20500 Kbytes 8-Mar-07 View Online Download Receive via Email

AN-1112 (Japanese): Application Note 1112 Micro SMD Wafer Level Chip Scale Package
2828 Kbytes

AN-1112 (Chinese): Application Note 1112 Micro SMD Wafer Level Chip Scale Package
992 Kbytes

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Title	Size in Kbytes	Date
AN-1112: Application Note 1112 Micro SMD Wafer Level Chip Scale Package	20500 Kbytes	8-Mar-07	View Online	Download	Receive via Email
AN-1112 (Japanese): Application Note 1112 Micro SMD Wafer Level Chip Scale Package	2828 Kbytes
AN-1112 (Chinese): Application Note 1112 Micro SMD Wafer Level Chip Scale Package	992 Kbytes