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SI79XX

更新时间：2025-06-29 10:19:20

品牌：SECOS

描述：3-Terminal Negative Voltage Regulator

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SI79XX 概述

3-Terminal Negative Voltage Regulator 三端负电压稳压器

SI79XX 数据手册

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SI79XX

3-Terminal

Elektronische Bauelemente

Negative Voltage Regulator

TO-251

Description

The SI79XX series of fixed-voltage monolithic intergrated-

circuit voltage regulators designed to complement Series

SI78XX in a wide range of applications. These applications

include on-card regulation for elimination of noise and

distribution problems associated with single-point regulation.

Each of these regulators can deliver up to 1A of output

current. The internal current limiting and thermal shutdown

features of these regulators make them essentially immune

to overload. In addition to use as fixed-voltage regulators,

thesedevices can be used with external components to

obtain adjustable output voltage and current and also as the

power pass element in precision regulators.

Features

*-5V,-6V,-8V,-9V,-10V,-12V,-15V,-18V,-24V Output Voltage Available

*Output Transistor Safe-Area Compensation

*No External Components

Millimeter

REF.

Min.

Max.

6.80

5.50

7.20

7.80

Min.

Max.

0.70

2.40

0.60

1.50

5.80

*Internal Thermal Overload Protection

*Internal Short-Circuit Current Limiting

6.40

5.20

6.80

7.20

0.50

2.20

0.45

0.90

5.40

2.30 REF.

0.60

0.90

Absolute Maximum Ratings

Parameter

Symbol

Ratings

Unit

SI7905~18

-35

-40

V_IN

Input Voltage

SI7924

V_IN

^oC

Output Current

Tj,

Tstg

Operating Junction And Storage Temperature Range

Thermal Resistance Junction-Air (RθJA)

Thermal Resistance Junction-Cases (RθJC)

-55~+150

125

RθJA

RθJC

12.5

Typical Application

SI79XX

http://www.SeCoSGmbH.com/

Any changing of specification will not be informed individual

01-Jun-2002 Rev. A

Page 1 of 5

SI79XX

3-Terminal

Elektronische Bauelemente

Negative Voltage Regulator

SI79XX

Electrical Characteristics

SI7905 (Refer to the test circuits, Tj=0~125к, Io=500mA, Vin=-10V, Cin=2.2ꢀF, Co=1ꢀF unless otherwise specified)

Symbol

Min.

Typ.

Max.

Unit

Test Conditions

A-Rank (3%)

B-Rank (5%)

-4.85

-5.0

-5.15

-5.25

100

6.0

0.5

1.3

Vin=-10V, Io=500mA, Tj=25к

-7V ≤ Vin ≤ -20V, 5mA ≤ Io ≤ 1A, PD ≤ 15W

-4.75

-7V ≤ Vin ≤ -25V, Io=500mA, Tj=25к

-8V ≤ Vin ≤ -12V, Io=500mA, Tj=25к

Vin=-10V, 5mA ≤ Io ≤ 1A, Tj=25к

Vin=-10V, 250mA ≤ Io ≤ 750mA, Tj=25к

Vin=-10V, Io=500mA, Tj=25к

Vin=-10V, 5mA ≤ Io ≤ 1A

∆VO

(Line Regulation)

∆VO

(Load Regulation)

∆ IQ

-7V ≤ Vin ≤ -25V, Io=500mA

10Hz ≤ f ≤ 100KHz, Ta=25к

-8V ≤ Vin ≤ -18V, f=120Hz, Tj=25к

Io=1A, Tj=25к

100

ꢀV

Ipk

2.2

-0.4

Tj=25к

Io=5mA, 0к ≤ Tj ≤ 125к

∆Vo / ∆Tj

mV/к

SI7906 (Refer to the test circuits, Tj=0~125к, Io=500mA, Vin=-11V, Cin=2.2ꢀF, Co=1ꢀF unless otherwise specified)

Symbol

Min.

Typ.

Max.

Unit

Test Conditions

A-Rank (3%)

B-Rank (5%)

-5.82

-6.0

-6.18

-6.30

120

6.0

0.5

1.3

Vin=-11V, Io=500mA, Tj=25к

-8V ≤ Vin ≤ -21V, 5mA ≤ Io ≤ 1A, PD ≤ 15W

-5.70

-8V ≤ Vin ≤ -25V, Io=500mA, Tj=25к

-9V ≤ Vin ≤ -13V, Io=500mA, Tj=25к

Vin=-11V, 5mA ≤ Io ≤ 1A, Tj=25к

Vin=-11V, 250mA ≤ Io ≤ 750mA, Tj=25к

Vin=-11V, Io=500mA, Tj=25к

Vin=-11V, 5mA ≤ Io ≤ 1A

∆VO

(Line Regulation)

∆VO

(Load Regulation)

∆ IQ

-8V ≤ Vin ≤ -25V, Io=500mA

10Hz ≤ f ≤ 100KHz, Ta=25к

-9V ≤ Vin ≤ -19V, f=120Hz, Tj=25к

Io=1A, Tj=25к

130

ꢀV

Ipk

2.2

-0.5

Tj=25к

Io=5mA, 0к ≤ Tj ≤ 125к

∆Vo / ∆Tj

mV/к

http://www.SeCoSGmbH.com/

Any changing of specification will not be informed individual

01-Jun-2002 Rev. A

Page 2 of 5

SI79XX

3-Terminal

Elektronische Bauelemente

Negative Voltage Regulator

SE79XX

SI79XX

SI7908 (Refer to the test circuits, Tj=0~125к, Io=500mA, Vin=-14V, Cin=2.2ꢀF, Co=1ꢀF unless otherwise specified)

Symbol

Min.

Typ.

Max.

Unit

Test Conditions

A-Rank (3%)

B-Rank (5%)

-7.76

-8.0

-8.24

-8.40

160

6.0

0.5

1.0

Vin=-14V, Io=500mA, Tj=25к

-10.5V ≤ Vin ≤ -23V, 5mA ≤ Io ≤ 1A, PD ≤ 15W

-7.60

-10.5V ≤ Vin ≤ -25V, Io=500mA, Tj=25к

-11.5V ≤ Vin ≤ -17V, Io=500mA, Tj=25к

Vin=-14V, 5mA ≤ Io ≤ 1A, Tj=25к

Vin=-14V, 250mA ≤ Io ≤ 750mA, Tj=25к

Vin=-14V, Io=500mA, Tj=25к

Vin=-14V, 5mA ≤ Io ≤ 1A

∆VO

(Line Regulation)

∆VO

(Load Regulation)

∆ IQ

-11.5V ≤ Vin ≤ -25V, Io=500mA

10Hz ≤ f ≤ 100KHz, Ta=25к

-11.5V ≤ Vin ≤ -21.5V, f=120Hz, Tj=25к

Io=1A, Tj=25к

175

ꢀV

Ipk

2.2

-0.6

Tj=25к

Io=5mA, 0к ≤ Tj ≤ 125к

∆Vo / ∆Tj

mV/к

SI7909 (Refer to the test circuits, Tj=0~125к, Io=500mA, Vin=-15V, Cin=2.2ꢀF, Co=1ꢀF unless otherwise specified)

Symbol

Min.

Typ.

Max.

Unit

Test Conditions

A-Rank (3%)

B-Rank (5%)

∆VO

-8.73

-9.0

-9.27

-9.45

180

6.0

0.5

1.0

Vin=-15V, Io=500mA, Tj=25к

-11.5V ≤ Vin ≤ -23V, 5mA ≤ Io ≤ 1A, PD ≤ 15W

-8.55

-11.5V ≤ Vin ≤ -26V, Io=500mA, Tj=25к

-12V ≤ Vin ≤ -18V, Io=500mA, Tj=25к

Vin=-15V, 5mA ≤ Io ≤ 1A, Tj=25к

Vin=-15V, 250mA ≤ Io ≤ 750mA, Tj=25к

Vin=-15V, Io=500mA, Tj=25к

Vin=-15V, 5mA ≤ Io ≤ 1A

(Line Regulation)

∆VO

(Load Regulation)

∆ IQ

-11.5V ≤ Vin ≤ -26V, Io=500mA

10Hz ≤ f ≤ 100KHz, Ta=25к

-12.5V ≤ Vin ≤ -22.5V, f=120Hz, Tj=25к

Io=1A, Tj=25к

175

ꢀV

Ipk

2.2

-0.6

Tj=25к

Io=5mA, 0к ≤ Tj ≤ 125к

∆Vo / ∆Tj

mV/к

http://www.SeCoSGmbH.com/

Any changing of specification will not be informed individual

01-Jun-2002 Rev. A

Page 3 of 5

SI79XX

3-Terminal

Elektronische Bauelemente

Negative Voltage Regulator

SI79XX

SI7912 (Refer to the test circuits, Tj=0~125к, Io=500mA, Vin=-19V, Cin=2.2ꢀF, Co=1ꢀF unless otherwise specified)

Symbol

Min.

Typ.

Max.

Unit

Test Conditions

A-Rank (3%)

B-Rank (5%)

-11.64

-12.0

-12.36

-12.60

240

120

240

120

6.0

0.5

1.0

Vin=-19V, Io=500mA, Tj=25к

-14.5V ≤ Vin ≤ -27V, 5mA ≤ Io ≤ 1A, PD ≤ 15W

-11.40

-14.5V ≤ Vin ≤ -30V, Io=500mA, Tj=25к

-16V ≤ Vin ≤ -22V, Io=500mA, Tj=25к

Vin=-19V, 5mA ≤ Io ≤ 1A, Tj=25к

Vin=-19V, 250mA ≤ Io ≤ 750mA, Tj=25к

Vin=-19V, Io=500mA, Tj=25к

Vin=-19V, 5mA ≤ Io ≤ 1A

∆VO

(Line Regulation)

∆VO

(Load Regulation)

∆ IQ

-14.5V ≤ Vin ≤ -30V, Io=500mA

10Hz ≤ f ≤ 100KHz, Ta=25к

-15V ≤ Vin ≤ -25V, f=120Hz, Tj=25к

Io=1A, Tj=25к

200

ꢀV

Ipk

2.2

-0.8

Tj=25к

Io=5mA, 0к ≤ Tj ≤ 125к

∆Vo / ∆Tj

mV/к

SI7915 (Refer to the test circuits, Tj=0~125к, Io=500mA, Vin=-23V, Cin=2.2ꢀF, Co=1ꢀF unless otherwise specified)

Symbol

Min.

Typ.

Max.

Unit

Test Conditions

A-Rank (3%)

B-Rank (5%)

∆VO

-14.55

-15.0

-15.45

-15.75

300

150

300

150

6.0

0.5

1.0

Vin=-23V, Io=500mA, Tj=25к

-17.5V ≤ Vin ≤ -30V, 5mA ≤ Io ≤ 1A, PD ≤ 15W

-14.25

-17.5V ≤ Vin ≤ -30V, Io=500mA, Tj=25к

-20V ≤ Vin ≤ -26V, Io=500mA, Tj=25к

Vin=-23V, 5mA ≤ Io ≤ 1A, Tj=25к

Vin=-23V, 250mA ≤ Io ≤ 750mA, Tj=25к

Vin=-23V, Io=500mA, Tj=25к

Vin=-23V, 5mA ≤ Io ≤ 1A

(Line Regulation)

∆VO

(Load Regulation)

∆ IQ

-17.5V ≤ Vin ≤ -30.5V, Io=500mA

10Hz ≤ f ≤ 100KHz, Ta=25к

-18.5V ≤ Vin ≤ -28.5V, f=120Hz, Tj=25к

Io=1A, Tj=25к

250

ꢀV

Ipk

2.2

-0.9

Tj=25к

Io=5mA, 0к ≤ Tj ≤ 125к

∆Vo / ∆Tj

mV/к

http://www.SeCoSGmbH.com

Any changing of specification will not be informed individual

01-Jun-2002 Rev. A

Page 4 of 5

SI79XX

3-Terminal

Elektronische Bauelemente

Negative Voltage Regulator

SI79XX

SI7918 (Refer to the test circuits, Tj=0~125к, Io=500mA, Vin=-27V, Cin=2.2ꢀF, Co=1ꢀF unless otherwise specified)

Symbol

Min.

Typ.

Max.

Unit

Test Conditions

A-Rank (3%)

B-Rank (5%)

-17.46

-18.0

-18.54

-18.9

360

180

360

180

6.0

0.5

1.0

Vin=-27V, Io=500mA, , Tj=25к

-21V ≤ Vin ≤ -33V, 5mA ≤ Io ≤ 1A, PD ≤ 15W

-17.10

-21V ≤ Vin ≤ -33V, Io=500mA, Tj=25к

-24V ≤ Vin ≤ -30V, Io=500mA, Tj=25к

Vin=-27V, 5mA ≤ Io ≤ 1A, Tj=25к

Vin=-27V, 250mA ≤ Io ≤ 750mA, Tj=25к

Vin=-27V, Io=500mA, Tj=25к

Vin=-27V, 5mA ≤ Io ≤ 1A

∆VO

(Line Regulation)

∆VO

(Load Regulation)

∆ IQ

-21V ≤ Vin ≤ -33V, Io=500mA

10Hz ≤ f ≤ 100KHz, Ta=25к

-22V ≤ Vin ≤ -32V, f=120Hz, Tj=25к

Io=1A, Tj=25к

300

ꢀV

Ipk

2.2

-1.0

Tj=25к

Io=5mA, 0к ≤ Tj ≤ 125к

∆Vo / ∆Tj

mV/к

SI7924 (Refer to the test circuits, Tj=0~125к, Io=500mA, Vin=-33V, Cin=2.2ꢀF, Co=1ꢀF unless otherwise specified)

Symbol

Min.

Typ.

Max.

Unit

Test Conditions

A-Rank (3%)

B-Rank (5%)

∆VO

-23.28

-24.0

-24.72

-25.20

480

240

480

240

6.0

0.5

1.0

Vin=-33V, Io=500mA, Tj=25к

-27V ≤ Vin ≤ -38V, 5mA ≤ Io ≤ 1A, PD ≤ 15W

-22.80

-27V ≤ Vin ≤ -38V, Io=500mA, Tj=25к

-30V ≤ Vin ≤ -36V, Io=500mA, Tj=25к

Vin=-33V, 5mA ≤ Io ≤ 1A, Tj=25к

Vin=-33V, 250mA ≤ Io ≤ 750mA, Tj=25к

Vin=-33V, Io=500mA, Tj=25к

Vin=-33V, 5mA ≤ Io ≤ 1A

(Line Regulation)

∆VO

(Load Regulation)

∆ IQ

-27V ≤ Vin ≤ -38V, Io=500mA

10Hz ≤ f ≤ 100KHz, Ta=25к

-28V ≤ Vin ≤ -38V, f=120Hz, Tj=25к

Io=1A, Tj=25к

400

ꢀV

Ipk

2.2

-1.0

Tj=25к

Io=5mA, 0к ≤ Tj ≤ 125к

∆Vo / ∆Tj

mV/к

http://www.SeCoSGmbH.com/

Any changing of specification will not be informed individual

01-Jun-2002 Rev. A

Page 5 of 5

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