Fairchild Semiconductor KA79L24AZ, KA79L18AZ, KA79L08AZ, KA79L05AD, KA79L15AZ Datasheet

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KA79LXXA

3-Terminal 0.1A Negative V oltage R egulator

Features

• Output Current up to 100mA

• No External Components

• Internal Thermal Over Load Protection

• Internal Short Circuit Current Limiting

• Output Voltage Offered in ±5% Tolerance

• Output Voltage of -5V, -8V, -12V, -15V, -18V and -24V

Internal Block Diagram

Description

These regulators employ internal current limiting and thermal shutdown, making them essentially indestructible.

TO-92

1

1.GND 2.Input 3.Output

8-SOP

1

1. Output 2.3.6.7. Input 5. GND 4.8. NC

SOT-89

1

D3

D2

Q14

Q16

R28

R24

R23+R21

Q15

Q13

R22

R18

R25

Q10

Q11

Q5

R29

Q17

R7

Q6

Q9

C1

R16

Q12

R26

R17

Q8

Q7

Q1

Q4

R1 R2

R6

R3

D1

R4

Q2

R15

R

Q3

R5

Rev. 1.0.2

KA79LXXA

Absolute Maximum Ratings

Parameter Symbol Value Unit

Input Voltage (for V (for V (for V

= -12V to -18V)

o

= -24V)

o

= -5V to -8V)

o

Operating Temperature Range T Storage Temperature Range T

V

I

OPR STG

-30

-35

V

-40

0 ~ +125 °C

-65 ~ +150 °C

Electrical Characteristi c s(K A 79L05A)

(VI = -10V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, 0°C ≤T

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V Line Regulation (Note1) ∆V

Load Regulation (Note1) ∆V

Output Voltage V

Quiescent Current I

Quiescent Current Change

With Line ∆I With Load ∆I

Output Noise Voltage V

TJ = +25°C -4.8 -5.0 -5.2 V

O

TJ =+25°C

O

TJ =+25°C

O

-7.0V≥ V

O

= -10V, 1.0mA≤ I

V

I

TJ =+25°C-2.05.5

Q

Q Q

N

= +125°C--6.0

T

J

-8V ≥ V

1.0mA ≤ I

TA = +25°C,10Hz ≤ f ≤ 100kHz - 30 - µV Ripple Rejection RR f = 120Hz, -8V ≥ V Dropout Voltage V

TJ = +25°C-1.7-V

D

≤ +125°C, unless otherwise specified)

J

-7.0V ≥ V

-8V ≥ V

1.0mA ≤ I

≥ -20V, 1.0mA ≤ IO ≤ 40mA -4.75 - -5.25 V

I

O

≥ -20V - - 1.5 mA

I

≤ 40mA - - 0.1 mA

O

≥ -18V , T

I

≥ -20V - 15 150 mV

I

≥ -20V - - 100 mV

I

≤ 100mA - 20 60 mV

O

≤ 40mA - 10 30 mV

O

≤ 70mA -4.75 - -5.25 V

= +25°C41 60 - dB

J

mA

Note

1. Load and line regulation are specified at constant junction temperature. Change in V into account separately. Pulse testing with low duty is used.

2

due to heating effects must be taken

O

KA79LXXA

Electrical Characteri sti cs (KA79L08A)

(VI = -14V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, 0°C ≤T

(Continued)

≤ +125°C, unless otherwise specified)

J

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V Line Regulation (Note1) ∆V

Load Regulation (Note1) ∆V

Output Voltage V

Quiescent Current I

Quiescent Current Change

With Line With Load 1.0mA ≤ I

∆I

Output Noise Voltage V Ripple Rejection RR f = 120Hz, -11V ≥ V Dropout Voltage V

Note

1. Load an d lin e re gul ation ar e sp ecifi ed at con sta nt ju nct ion t empe rat ure . Chan ge i n V into account separately. Pulse testing with low duty is used.

TJ = +25°C -7.7 -8.0 -8.3 V

O

TJ =+25°C

-10.3V ≥ V = -14V, 1.0mA ≤ I

V

I

≥ -23V, 1.0mA ≤ Io ≤ 40mA -7.6 - -8.4

I

-10.3V ≥ V

-12V ≥ V

1.0mA ≤ I

≤ 70mA -7.6 - -8.4

o

≥ -23V - - 175 mV

I

≥ -23V - - 125 mV

I

≤ 100mA - - 80 mV

o

≤ 40mA - - 40 mV

o

Tj =+25°C--6.0

Q

N

D

= +125°C--5.5

T

j

-11.7V ≥ V

≥ -23V - - 1.5 mA

I

≤ 40mA - - 0.1 mA

o

Tj = +25°C,10Hz ≤ f ≤ 100kHz - 50 - µV

≥ -21V , T

I

= +25°C39 55 - dB

j

Tj = +25°C-1.7-V

due to heating effects must be taken

O

V

mA

3

KA79LXXA

Electrical Characteristi c s(K A 79L12A)

(VI = -19V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, 0°C ≤T

(Continued)

≤ +125°C, unless otherwise specified)

J

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V Line Regulation (Note1) ∆V

Load Regulation (Note1) ∆V

Output Voltage V

Quiescent Current I

Quiescent Current Change

With Line ∆I With Load ∆I

Output Noise Voltage V Ripple Rejection RR Dropout Voltage V

Note

1. Load and line regulation are specified at constant junction temperature. Change in V into account separately. Pulse testing with low duty is used.

TJ = +25°C -11.5 -12.0 -12.5 V

O

TJ = +25°C

-14.5V >V = -19V, 1.0mA ≤ I

V

I

> -27V, 1.0mA ≤ IO ≤ 40mA -11.4 - -12.6 V

I

-14.5V ≥ V

-16V ≥ V

1.0mA ≤ I

≤ 70mA -11.4 - -12.6 V

O

≥ -27V - - 250 mV

I

≥ -27V - - 200 mV

I

≤ 100mA - - 100 mV

O

≤ 40mA - - 50 mV

O

TJ = +25°C--6.0

Q

Q Q

N

D

= +125°C--6.5

T

J

-16V ≥ V

1.0mA ≤ I

≥ -27V - - 1.5 mA

I

≤ 40mA - - 0.1 mA

O

TA = +25°C,10Hz ≤ f ≤ 100kHz - 80 - µV f = 120Hz, -15V ≥ V

= +25°C

T

J

≥ -25V

I

37 42 - dB

TJ = +25°C-1.7-V

due to heating effects must be taken

O

mA

4