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LM2931BZ50R

更新时间：2024-09-18 06:59:47

品牌：STMICROELECTRONICS

描述：Very low drop voltage regulators with inhibit function

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LM2931BZ50R 概述

Very low drop voltage regulators with inhibit function 非常低压降稳压器与抑制功能线性稳压器IC

LM2931BZ50R 规格参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	TO-92
包装说明：	LEAD FREE, TO-92, 3 PIN	针数：	3
Reach Compliance Code：	not_compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.64
Is Samacsys：	N	可调性：	FIXED
最大回动电压 1：	0.6 V	标称回动电压 1：	0.25 V
最大绝对输入电压：	40 V	最大输入电压：	26 V
最小输入电压：	6 V	JESD-30 代码：	O-PBCY-W3
JESD-609代码：	e3	最大电网调整率：	0.03%
最大负载调整率：	0.05%	功能数量：	1
输出次数：	1	端子数量：	3
工作温度TJ-Max：	125 °C	工作温度TJ-Min：	-40 °C
最大输出电流 1：	0.1 A	最大输出电压 1：	5.5 V
最小输出电压 1：	4.5 V	标称输出电压 1：	5 V
封装主体材料：	PLASTIC/EPOXY	封装代码：	TO-92
封装等效代码：	SIP3,.1,50	封装形状：	ROUND
封装形式：	CYLINDRICAL	包装方法：	TAPE AND REEL
峰值回流温度（摄氏度）：	NOT SPECIFIED	认证状态：	Not Qualified
调节器类型：	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	子类别：	Other Regulators
表面贴装：	NO	技术：	BIPOLAR
端子面层：	Tin (Sn)	端子形式：	WIRE
端子节距：	1.27 mm	端子位置：	BOTTOM
处于峰值回流温度下的最长时间：	NOT SPECIFIED	最大电压容差：	10%
Base Number Matches：	1

LM2931BZ50R 数据手册

通过下载LM2931BZ50R数据手册来全面了解它。这个PDF文档包含了所有必要的细节，如产品概述、功能特性、引脚定义、引脚排列图等信息。

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LM2931XX - LM2931AXX33

LM2931AXX50 - LM2931BXX50

Very low drop voltage regulators with inhibit function

Features

■ Very low dropout voltage (0.15 V typ. at 10 mA

load)

■ Low quiescent current (typ. 2.5 mA, at 100 mA

load)

■ Output current up to 100 mA

DPAK

TO-92

■ Adjustable (from V

= 2.5 V only SO-8) and

OUT

fixed (3.3 V & 5 V) output voltage version

■ Internal current and thermal limit

■ Load dump protection up to 60 V

■ Reverse transient protection up to -50 V

■ Temperature range: -40 to 125 °C

SO-8

■ Package available: TO-92, DPAK, SO-8 (with

inhibit control)

board in stand-by decreasing the total power

consumption. Ideal for automotive application the

LM2931xx is protected from reverse battery

installations or 2 battery jumps. During the

transient, such as a a load dump (60 V) when the

input voltage can exceed the specified maximum

operating input voltage (26 V), the regulator will

automatically shut down to protect both internal

circuit and the load.

Description

The LM2931xx are very low drop regulators. The

very low drop voltage and the low quiescent

current make them particular suitable for low

noise, low power applications and in battery

powered systems. In the 8 pin configuration (SO-

8), fully compatible to the older L78Lxx family, a

shut down logic control function is available.

This means that when the device is used as a

local regulator is possible to put a part of the

Table 1.

Device summary

Order codes

Packages

Output voltage

DPAK

TO-92 (BAG)

TO-92 (Ammopak) ⁽¹⁾

SO-8

LM2931AZ33R

LM2931AZ50R

LM2931BZ50R

LM2931AD33R

LM2931AD50R

LM2931BD50R

LM2931D-R

3.3 V

5.0 V

LM2931ADT50R

LM2931BZ50AP

5.0 V

2.5 to 26 V

1. Please note that in these cases pins are shaped according to tape & reel specifications.

July 2008

Rev 18

1/23

www.st.com

Contents

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Contents

Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Truth tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2/23

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Diagram

Figure 1.

Schematic diagram

3/23

Pin configuration

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Pin configuration

Figure 2.

Pin connections (top view)

DPAK

SO-8

PIN 1 = V_OUT

PIN 2 = GND

PIN 3 = V_IN

BOTTOM VIEW

TO-92

4/23

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Maximum ratings

Table 2.

Absolute maximum ratings

Symbol

Parameter

Value

Unit

V_I

DC positive input voltage

-15

DC reverse input voltage

Transient input voltage (τ < 100 ms)

Transient reverse input voltage (τ < 100 ms)

Inhibit input voltage

-50

V_INH

I_O

Output current

Internally limited

-65 to 150

T_STG

T_OP

Storage temperature range

Operating junction temperature range

°C

-40 to 125

Note:

Absolute maximum ratings are those values beyond which damage to the device may occur.

Functional operation under these condition is not implied

Table 3.

Symbol

Thermal data

Parameter

SO-8

DPAK

TO-92

Unit

R_thJC

R_thJA

Thermal resistance junction-case

Thermal resistance junction-ambient

°C/W

55 ⁽¹⁾

100

200

1. Considering 6 cm2 of copper board heat-sink.

5/23

Application circuits

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Application circuits

Figure 3.

Application circuit for fixed output

Figure 4.

Application circuit for adjustable output

R suggested value = 27 kΩ

V = V

(R + R )/R

1 2 1

REF

6/23

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Electrical characteristics

Table 4.

Electrical characteristics of LM2931Axx33 (refer to the application circuit Figure 3,

T = 25 °C, C = 0.1 µF, C = 100 µF, V = 14 V, I = 10 mA, V

= 0 V, unless otherwise

INH

specified).

Symbol

Parameter

Test conditions

I_O= 10 mA, T_J= -40 to 125°C

Min.

Typ.

Max.

Unit

Maximum operating input

voltage

V_I

3.3

V_O

Output voltage

3.135

3.425

3.465

I_O= 100 mA, V_I= 6 to 26 V

T_J= -40 to 125°C

V_I= 9 to 16 V

V_I= 6 to 26 V

I_O= 5 to 100 mA

I_O= 10 mA

ΔV_O

V_d

Line regulation

Load regulation

250

600

Dropout voltage ^{(1) (2)}

I_O= 100 mA

Quiescent current

ON MODE

_O= 100 mA

2.5

I_d

OFF MODE

V_INH= 2.5 V, R_LOAD= 330 Ω

0.3

I_SC

Short circuit current

100

300

I_O= 100 mA, V_I= 14 2 V

f = 120 Hz, T_J= -40 to 125°C

SVR Supply voltage rejection

V_IL

V_IH

I_INH

V_I

Control input voltage low

T_J= -40 to 125°C

1.2

Control input voltage high T_J= -40 to 125°C

3.25

Inhibit input current

V_INH= 2.5 V

µA

Transient input voltage

R_LOAD= 330 Ω, τ < 100ms

Reverse polarity input

voltage

V_I

V_O= 0.3 V, R_LOAD= 330 Ω

-15

-50

Reverse polarity input

voltage transient

V_I

R_LOAD= 330 Ω, τ < 100ms

-50

Output noise voltage

B =10 Hz to 100 kHz

330

µV_RMS

1. Reference voltage is measured from V_OUTto ADJ pin.

2. V_dmeasured when the output voltage has dropped 100 mV from the nominal value obtained at 14 V.

7/23

Electrical characteristics

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Table 5.

Electrical characteristics of LM2931Axx50 (refer to the application circuit Figure 3,

T = 25 °C, C = 0.1 µF, C = 100 µF, V = 14 V, I = 10 mA, V

= 0 V, unless otherwise

INH

specified).

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Maximum operating input

voltage

V_I

I_O= 10 mA, T_J= -40 to 125°C

V_O

Output voltage

4.81

4.75

5.19

5.25

I_O= 100 mA, V_I= 6 to 26 V

T_J= -40 to 125°C

V_I= 9 to 16 V

V_I= 6 to 26 V

I_O= 5 to 100 mA

I_O= 10 mA

ΔV_O

V_d

Line regulation

Load regulation

250

200

600

Dropout voltage ^{(1) (2)}

I_O= 100 mA

Quiescent current

ON MODE

_O= 100 mA

2.5

I_d

OFF MODE

V_INH= 2.5 V, R_LOAD= 500 Ω

0.3

I_SC

Short circuit current

100

300

I_O= 100 mA, V_I= 14 2 V

f = 120 Hz, T_J= -40 to 125°C

SVR Supply voltage rejection

V_IL

V_IH

I_INH

V_I

Control input voltage low

T_J= -40 to 125°C

1.2

Control input voltage high T_J= -40 to 125°C

3.25

Inhibit input current

V_INH= 2.5 V

µA

Transient input voltage

R_LOAD= 500 Ω, τ < 100ms

Reverse polarity input

voltage

V_I

V_O= 0.3 V, R_LOAD= 500 Ω

-15

-50

Reverse polarity input

voltage transient

V_I

R_LOAD= 500 Ω, τ < 100ms

-50

Output noise voltage

B =10 Hz to 100 kHz

500

µV_RMS

1. Reference voltage is measured from V_OUTto ADJ pin.

2. V_dmeasured when the output voltage has dropped 100 mV from the nominal value obtained at 14 V.

8/23

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Electrical characteristics

Table 6.

Electrical characteristics of LM2931Bxx50 (refer to the application circuit Figure 3,

T = 25 °C, C = 0.1 µF, C = 100 µF, V = 14 V, I = 10 mA, V

= 0 V, unless otherwise

INH

specified).

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Maximum operating input

voltage

V_I

I_O= 10 mA, T_J= -40 to 125°C

4.75

4.5

V_O

Output voltage

5.25

5.5

I_O= 100 mA, V_I= 6 to 26 V

T_J= -40 to 125°C

V_I= 9 to 16 V

V_I= 6 to 26 V

I_O= 5 to 100 mA

I_O= 10 mA

ΔV_O

V_d

Line regulation

Load regulation

250

200

600

Dropout voltage ^{(1) (2)}

I_O= 100 mA

Quiescent current

ON MODE

_O= 100 mA

2.5

I_d

OFF MODE

V_INH= 2.5 V, R_LOAD= 500 Ω

0.3

I_SC

Short circuit current

100

300

I_O= 100 mA, V_I= 14 2 V

f = 120 Hz, T_J= -40 to 125°C

SVR Supply voltage rejection

V_IL

V_IH

I_INH

V_I

Control input voltage low

T_J= -40 to 125°C

1.2

Control input voltage high T_J= -40 to 125°C

3.25

Inhibit input current

V_INH= 2.5 V

µA

Transient input voltage

R_LOAD= 500 Ω, τ < 100ms

Reverse polarity input

voltage

V_I

V_O= 0.3 V, R_LOAD= 500 Ω

-15

-50

Reverse polarity input

voltage transient

V_I

R_LOAD= 500 Ω, τ < 100ms

-50

Output noise voltage

B =10 Hz to 100 kHz

500

µV_RMS

1. Reference voltage is measured from V_OUTto ADJ pin.

2. V_dmeasured when the output voltage has dropped 100 mV from the nominal value obtained at 14 V.

9/23

Electrical characteristics

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Table 7.

Electrical characteristics of LM2931xx (refer to the application circuit Figure 4 with

R = 27 KΩ and R = 40.5 kΩ, T = 25 °C, C = 0.1 µF, C = 100 µF, V = 14 V, I = 10 mA,

= 0 V, unless otherwise specified).

INH

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Maximum operating input

voltage

V_I

I_O= 10 mA, T_J= -40 to 125°C

V_REFReference voltage ⁽¹⁾

1.14

1.08

1.2

0.6

1.26

1.32

4.5

I_O= 100 mA, T_J= -40 to 125°C

V_I= 3.6 to 26 V

ΔV_O

Line regulation

Load regulation

I_O= 5 to 100 mA

I_O= 10 mA

200

600

V_d

Dropout voltage ^{(1) (2)}

I_O= 100 mA

250

Quiescent current

ON MODE

I_O= 100 mA

2.5

I_d

OFF MODE

V_INH= 2.5 V, R_LOAD= 300 Ω

0.3

I_SC

Short circuit current

100

300

I_O= 100 mA, V_I= 14 2 V

f = 120 Hz, T_J= -40 to 125°C

SVR Supply voltage rejection

V_IL

V_IH

I_INH

V_I

Control input voltage low

T_J= -40 to 125°C

1.2

Control input voltage high T_J= -40 to 125°C

3.25

Inhibit input current

V_INH= 2.5 V

µA

Transient input voltage

R_LOAD= 300 Ω, τ < 100ms

Reverse polarity input

voltage

V_I

V_O= 0.3 V, R_LOAD= 300 Ω

-15

-50

Reverse polarity input

voltage transient

V_I

R_LOAD= 300 Ω, τ < 100ms

-50

Output noise voltage

B = 10 Hz to 100 kHz

330

µV_RMS

1. Reference voltage is measured from V_OUTto ADJ pin.

2. V_dmeasured when the output voltage has dropped 100 mV from the nominal value obtained at 14 V.

10/23

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Typical characteristics

(unless otherwise specified C = 0.1 µF, C = 100 µF)

Figure 5.

Output voltage vs temperature

Figure 6.

Output voltage vs temperature

Figure 7.

Reference voltage vs temperature Figure 8.

Line regulation vs temperature

Figure 9.

Load regulation vs temperature

Figure 10. Dropout voltage vs temperature

11/23

Typical characteristics

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Figure 11. Dropout voltage vs temperature

Figure 12. Dropout voltage vs output current

Figure 13. Output voltage vs input voltage

Figure 14. Short circuit current vs drop

voltage

Figure 15. Quiescent current vs temperature Figure 16. Quiescent current vs input voltage

12/23

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Typical characteristics

Figure 17. Quiescent current vs output current Figure 18. Supply voltage rejection vs

temperature

Figure 19. Supply voltage rejection vs

frequency

Figure 20. Supply voltage rejection vs output

current

Figure 21. Stability vs C

Figure 22. Line transient

V_I= 6 to 20 V, R_L= 500 Ω, T_J= 25°C, C_I= 0, C_O= 100 µF,

Rise Fall-Time = 200 ns

13/23

Typical characteristics

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Figure 23. Line transient

V_I= 14 V, I_O= 100 mA, T_J= 25°C, C_I= 0.1 µF, C_O= 100 µF,

Rise Time = 500 ns, Fall-Time = 1 µs

14/23

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Package mechanical data

In order to meet environmental requirements, ST offers these devices in ECOPACK

packages. These packages have a lead-free second level interconnect. The category of

second Level Interconnect is marked on the package and on the inner box label, in

compliance with JEDEC Standard JESD97. The maximum ratings related to soldering

conditions are also marked on the inner box label. ECOPACK is an ST trademark.

ECOPACK specifications are available at: www.st.com.

15/23

Package mechanical data

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

TO-92 mechanical data

mm.

Typ.

mils.

Dim.

Min.

Max.

4.95

0.51

4.95

3.94

2.67

1.40

15.49

2.41

1.52

0.56

Min.

170.1

14.2

Typ.

Max.

194.9

20.1

4.32

0.36

4.45

3.30

2.41

1.14

12.7

2.16

0.92

0.41

175.2

129.9

94.9

194.9

155.1

105.1

55.1

44.9

500.0

85.0

609.8

94.9

36.2

59.8

16.1

22.0

5°

0102782/D

16/23

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Package mechanical data

DPAK mechanical data

mm.

inch.

Dim.

Min.

Typ.

Max.

Min.

Typ.

Max.

2.2

0.9

2.4

1.1

0.23

0.9

5.4

0.6

6.2

0.086

0.035

0.001

0.025

0.204

0.017

0.019

0.236

0.094

0.043

0.009

0.035

0.212

0.023

0.244

0.03

0.64

5.2

0.45

0.48

5.1

0.200

6.4

6.6

0.252

0.260

4.7

0.185

0.090

2.28

4.4

9.35

4.6

0.173

0.368

0.039

0.181

0.397

10.1

(L1)

2.8

0.8

0.110

0.031

0.6

0°

0.023

0.039

8°

0.2

0.008

8°

0°

0068772-F

17/23

Package mechanical data

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

SO-8 mechanical data

mm.

Typ.

inch.

Typ.

Dim.

Min.

Max.

Min.

Max.

1.35

0.10

1.10

0.33

0.19

4.80

3.80

1.75

0.053

0.069

0.25

1.65

0.51

0.25

5.00

4.00

0.04

0.010

0.065

0.020

0.010

0.197

0.157

0.043

0.013

0.007

0.189

0.150

1.27

0.050

5.80

0.25

0.40

6.20

0.50

1.27

0.228

0.010

0.016

0.244

0.020

0.050

8° (max.)

ddd

0.1

0.04

0016023/C

18/23

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Package mechanical data

Tape & reel DPAK-PPAK mechanical data

mm.

Typ.

inch.

Dim.

Min.

Max.

330

Min.

Typ.

Max.

12.992

0.519

12.8

20.2

13.0

13.2

0.504

0.795

2.362

0.512

22.4

7.00

10.60

2.75

4.1

0.882

0.2.76

0.417

0.105

0.161

0.319

6.80

10.40

2.55

3.9

6.90

10.50

2.65

4.0

0.268

0.409

0.100

0.153

0.311

0.272

0.413

0.104

0.157

0.315

7.9

8.0

8.1

19/23

Package mechanical data

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Tape & reel SO-8 mechanical data

mm.

Typ.

inch.

Typ.

Dim.

Min.

Max.

330

Min.

Max.

12.992

0.519

12.8

20.2

13.2

0.504

0.795

2.362

22.4

8.5

5.9

2.3

4.1

8.1

0.882

0.335

0.232

0.090

0.161

0.319

8.1

5.5

2.1

3.9

7.9

0.319

0.216

0.082

0.153

0.311

20/23

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Package mechanical data

Tape & reel for TO-92 mechanical data

mm.

inch.

Dim.

Min.

Typ.

Max.

Min.

Typ.

Max.

4.80

3.80

1.60

2.30

0.48

0.189

0.150

0.063

0.091

0.019

12.5

5.65

2.44

12.9

7.05

2.94

0.492

0.222

0.096

0.508

0.278

0.116

F1, F2

delta H

delta P

Φ1

Φ2

2.54

18.00

0.100

0.079

0.709

17.5

5.7

8.5

19.0

6.3

9.25

0.689

0.224

0.335

0.748

0.248

0.364

0.50

18.50

0.20

0.728

18.70

16.50

0.726

0.650

15.50

0.610

0.150

25.00

0.984

3.8

4.2

0.165

0.90

360

0.035

0.118

0.039

1.968

14.173

1.181

delta P

delta H

DRAWING NOT IN SCALE

21/23

Revision history

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

Revision history

Table 8.

Document revision history

Revision

Date

Changes

21-Jun-2004

16-Jun-2006

27-Jul-2007

21-Aug-2007

22-Nov-2007

11-Feb-2008

10-Jul-2008

Document updated.

Order codes updated.

Added Table 1 in cover page.

Added root part number - (see Table 1)

Modified: Table 1.

Modified: Table 1 on page 1.

Removed package TO-220, modified Table 1 on page 1.

22/23

LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50

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23/23

LM2931BZ50R 替代型号

型号	制造商	描述	替代类型	文档
LM2931AZ-5.0RAG	ONSEMI	100 mA, Adjustable Output, LDO Voltage Regulator with 60 V Load Dump Protection	功能相似
LM2931AZ50R	STMICROELECTRONICS	Very low drop voltage regulators with inhibit function	功能相似
LM2931AZ-5.0/NOPB	TI	LM2931-N Series Low Dropout Regulators	功能相似

LM2931BZ50R 相关器件

型号	制造商	描述	价格	文档
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LM2931CD	MOTOROLA	LOW DROPOUT VOLTAGE REGULATORS	获取价格
LM2931CD2T	ONSEMI	LOW DROPOUT VOLTAGE REGULATORS	获取价格
LM2931CD2T	MOTOROLA	LOW DROPOUT VOLTAGE REGULATORS	获取价格
LM2931CD2TG	ONSEMI	100 mA, Adjustable Output, LDO Voltage Regulator with 60 V Load Dump Protection	获取价格
LM2931CD2TR4	ONSEMI	100 mA, Adjustable Output, LDO Voltage Regulator with 60 V Load Dump Protection	获取价格
LM2931CD2TR4	MOTOROLA	Adjustable Positive LDO Regulator, 24V Min, 24V Max, 0.6V Dropout, BIPolar, PSSO5, PLASTIC, D2PAK-5	获取价格
LM2931CD2TR4G	ONSEMI	100 mA, Adjustable Output, LDO Voltage Regulator with 60 V Load Dump Protection	获取价格
LM2931CD2TT4	MOTOROLA	24 V-ADJUSTABLE POSITIVE LDO REGULATOR, 0.6V DROPOUT, PSSO5, PLASTIC, D2PAK-5	获取价格