Fairchild KA78LXXA, KA78L05AA service manual

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KA78LXXA/KA78L05AA

3-Term inal 0.1A Positive Voltage Regulator

www.fairchildsemi.com

Features

• Maximum Output Current of 100mA

• Output Voltage of 5V, 6V, 8V, 9V,10V, 12V , 15V, 18V and
24V

• Thermal Overload Protection

• Short Circuit Current Limiting

• Output Voltage Offered in ±5% Tolerance

Description

The KA78LXXA/KA78L05AA s e ries of fixed vol tage
monolithic integrated circuit voltage regulators are suitable
for application that required supply current up to 100mA.

TO-92

2

1

3

1. Output 2. GND 3. Input

8-SOP

8

1. Output 2. GND 3. GND 4. NC

5. NC 6. GND 7. GND 8. Input

SOT-89

GND

1

2

3

1

Internal Block Diagram

V

I

Inpu

t

3

REFERENCE VOLTAGE

GND

2

©2005 Fairchild Semiconductor Corporation

THERMAL SHUTDOWN

I

+

-

CIRCUIT

SHORT CIRCUIT

PROTECTION

R

SC

V

0

Outpu

t

1

Rev. 1.0.5

KA78LXXA/KA78L05AA

Absolute Maximum Ratings

Parameter Symbol Value Unit

Input Voltage (for V
(for V

= 12V to 18V)

O

(for V

O =

24V

= 5V, 8V)

O

Operating Junction Temperature Range T
Storage Temperature Range T

V

I

J

STG

30
35
40

0 ~ +150 °C

-65 ~ +150 °C

V
V
V

Electrical Characteristics(KA78L 0 5A)

(V

= 10V, I

I

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V
Line Regulation (Note1)

Load Regulation (Note1)

Output Voltage V

Quiescent Current I
Quiescent Current

Change
Output Noise Voltage V

Temperature Coefficient of V
Ripple Rejection RR f = 120Hz, 8V ≤ V
Dropout Voltage V

= 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. (Note1)

O

TJ = 25°C 4.8 5.0 5.2 V

O

∆V
∆V

O

O

TJ = 25°C

TJ = 25°C

7V ≤ V
8V ≤ V
1mA ≤ I
1mA ≤ I

≤ 20V - 8 150 mV

I

≤ 20V - 6 100 mV

I

≤ 100mA - 11 60 mV

O

≤ 40mA - 5.0 30 mV

O

7V ≤ VI ≤ 20V 1mA ≤ IO ≤ 40mA - - 5.25 V

With Line ∆I
With Load ∆I

∆VO/∆TIO = 5mA - -0.65 - mV/°C

O

O

7V ≤V
(Note2)

TJ = 25°C-2.05.5mA

Q

8V ≤VI ≤ 20V - - 1.5 mA

Q

1mA ≤ IO ≤ 40 mA - - 0.1 mA

Q

TA = 25°C, 10Hz ≤ f ≤ 100kHz - 40 - µV/Vo

N

TJ = 25°C-1.7-V

D

I

≤ V

MAX

1mA ≤ I

≤ 18V, TJ = 25°C4180 - dB

I

≤ 70mA 4.75 - 5.25 V

O

Note:

1. The max imum st eady sta te usable output cu rrent and inpu t voltage are very depende nt on the heat s inking an d/or l ead leng th

of the package. Th e data a bove rep resent p ulse tes t conditi ons with junction temper ature as indicated at the initiation o f test s.

2. Power dissipat ion P

≤ 0.75W.

D

2

KA78LXXA/KA78L05AA

Electrical Characteristics(KA78L 0 6A)

(V

I

= 12V, I

= 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. (Note 1)

O

(Continued)

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
Temperature Coefficient of V

∆VO/∆TIO = 5mA - 0.75 - mV/°C

O

Ripple Rejection RR f = 120Hz, 10V ≤ V
Dropout Voltage V

TJ = 25°C 5.75 6.0 6.25 V

O

O

O

TJ = 25°C

TJ = 25°C

8.5V ≤ V
9V ≤ V
1mA ≤ I
1mA ≤ I

≤ 20V - 64 175 mV

I

≤ 20V - 54 125 mV

I

≤ 100mA - 12.8 80 mV

O

≤ 70mA - 5.8 40 mV

O

8.5 ≤ VI ≤ 20V, 1mA ≤ IO ≤ 40mA 5.7 - 6.3 V

O

8.5 ≤ V

I

≤ V

(Note), 1mA ≤ IO ≤ 70mA 5.7 - 6.3 V

MAX

TJ = 25°C--5.5mA

Q

Q
Q

N

D

= 125°C-3.96.0mA

T

J

9 ≤ VI ≤ 20V - - 1.5 mA
1mA ≤ IO ≤ 40mA - - 0.1 mA
TA = 25°C, 10Hz ≤ f ≤ 100kHz - 40 - µV/Vo

≤ 20V, TJ = 25°C4046-dB

I

TJ = 25°C-1.7-V

Note:

1. The ma ximum ste ady stat e usable output current and input vo ltage ar e very d epende nt on th e heat s inking a nd/or lead le ngth
of the package. The dat a above repres ent pulse test c onditions with junction tempera ture as indica ted at the initi ation of test s.

2. Power dissipat ion P

≤ 0.75W.

D

3

KA78LXXA/KA78L05AA

Electrical Characteristics(KA78L 0 8A)

(V

I

= 14V, I

= 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. (Note1)

O

(Continued)

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V
Line Regulation (Note1)

∆V

Load Regulation (Note1) ∆V

TJ = 25°C 7.7 8.0 8.3 V

O

O

O

TJ = 25°C

TJ = 25°C

10.5V ≤ V
11V ≤ V
1mA ≤ I
1mA ≤ I

≤ 23V - 10 175 mV

I

≤ 23V - 8 125 mV

I

≤ 100mA - 15 80 mV

O

≤ 40mA - 8.0 40 mV

O

10.5V ≤ VI ≤ 23V 1mA ≤ IO ≤ 40mA 7.6 - 8.4 V

Output Voltage V

Quiescent Current I
Quiescent Current

Change

With Line ∆I

With Load ∆I
Output Noise Voltage V
Temperature Coefficient of V

O

Ripple Rejection RR f = 120Hz, 11V ≤ V
Dropout Voltage V

Note:

1. The max imum st eady sta te usable output cu rrent and inpu t voltage are very depende nt on the heat s inking an d/or l ead leng th
of the package. Th e data a bove rep resent p ulse tes t conditi ons with junction temper ature as indicated at the initiation o f test s.

2. Power dissipat ion P

≤ 0.75W.

D

O

10.5V ≤ V
V

MAX

TJ = 25°C-2.05.5mA

Q

11V ≤ VI ≤ 23V - - 1.5 mA

Q

1mA ≤ IO ≤ 40mA - - 0.1 mA

Q

TA = 25°C, 10Hz ≤ f ≤100kHz - 60 - µV/Vo

N

≤

I

(Note2)

1mA ≤ I

≤ 70mA 7.6 - 8.4 V

O

∆VO/∆TIO = 5mA - -0.8 - mV/°C

≤ 21V, TJ = 25°C39 70 - dB

I

TJ = 25°C-1.7-V

D

4

KA78LXXA/KA78L05AA

Electrical Characteristics(KA78L 0 9A)

(V

I

= 15V, I

= 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. (Note1)

O

(Continued)

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V
Line Regulation (Note1)

∆V

Load Regulation (Note1) ∆V

TJ = 25°C 8.64 9.0 9.36 V

O

O

O

TJ = 25°C

TJ = 25°C

11.5V ≤ V
13V ≤ V
1mA ≤ I
1mA ≤ I

≤ 24V - 90 200 mV

I

≤ 24V - 100 150 mV

I

≤ 100mA - 20 90 mV

O

≤ 40mA - 10 45 mV

O

11.5V ≤ VI ≤ 24V 1mA ≤ IO ≤ 40mA 8.55 - 9.45 V

Output Voltage V

Quiescent Current I
Quiescent Current

Change

With Line ∆I

With Load ∆I
Output Noise Voltage V
Temperature Coefficient of V

O

Ripple Rejection RR f = 120Hz, 12V ≤ V
Dropout Voltage V

Note:

1. The ma ximum ste ady stat e usable output current and input vo ltage ar e very d epende nt on th e heat s inking a nd/or lead le ngth
of the package. The dat a above repres ent pulse test c onditions with junction tempera ture as indica ted at the initi ation of test s.

2. Power dissipat ion P

≤ 0.75W.

D

O

11.5V ≤ V
V

MAX

TJ = 25°C-2.16.0mA

Q

13V ≤ VI ≤ 24V - - 1.5 mA

Q

1mA ≤ IO ≤ 40mA - - 0.1 mA

Q

TA = 25°C, 10Hz ≤ f ≤ 100kHz - 70 - µV/Vo

N

≤

I

(Note 2)

1mA ≤ I

≤ 70mA 8.55 - 9.45 V

O

∆VO/∆TIO = 5mA - -0.9 - mV/°C

≤ 22V, TJ = 25°C38 44 - dB

I

TJ = 25°C-1.7-V

D

5

KA78LXXA/KA78L05AA

Electrical Characteristics(KA78L 1 0A)

(V

I

= 16V, I

= 40mA, 0 °C ≤ TJ ≤ 125 °C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note1)

O

(Continued)

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V
Line Regulation (Note1) ∆V

Load Regulation (Note1) ∆V

TJ = 25°C 9.6 10.0 10.4 V

O

O

O

TJ = 25°C

TJ = 25°C

12.5 ≤ V
14V ≤ V
1mA ≤ I
1mA ≤ I

≤ 25V - 100 220 mV

I

≤ 25V - 100 170 mV

I

≤ 100mA - 20 94 mV

O

≤ 70mA - 10 47 mV

O

12.5V ≤ VI ≤ 25V, 1mA ≤ IO ≤ 4 0 m A 9.5 - 10.5

Output Voltage V

Quiescent Current I
Quiescent Current

Change

With Line ∆I

With Load ∆I
Output Noise Voltage V
Temperature Coefficient of V

O

Ripple Rejection RR f = 120Hz, 15V ≤ V
Dropout Voltage V

O

12.5V ≤ V
1mA ≤ I

≤ V

I

≤ 70mA

O

MAX

(Note2)

9.5 - 10.5

TJ = 25°C - - 6.0

Q

Q
Q

N

=125°C-4.26.5

T

J

12.5 ≤ VI ≤ 25V - - 1.5 mA
1mA ≤ IO ≤ 40mA - - 0.1 mA
TA = 25°C, 10Hz ≤ f ≤ 100kHz - 74 - µV/Vo

∆VO/∆TIO = 5mA - 0.95 - mV/°C

≤ 25V, TJ = 25°C38 43 - dB

I

TJ = 25°C-1.7-V

D

V

mA

Notes:

1. The max imum st eady sta te usable output cu rrent and inpu t voltage are very depende nt on the heat s inking an d/or l ead leng th
of the package. Th e data a bove rep resent p ulse tes t conditi ons with junction temper ature as indicated at the initiation o f test s.

2. Power dissipat ion P

≤ 0.75W.

D

6