BL78A05 查看數據表（PDF） - Shanghai Belling Co., Ltd.

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BL78A05

Positive voltage regulators

Shanghai Belling Co., Ltd. 

BL78A05

Positive voltage regulators

4.Electrical characteristics

Electrical characteristics of BL78A05 (refer to the test circuits, TJ = -40 to

125°C, V I= 11 V, IO = 500mA, C I= 0.33 µF, CO = 0.1 µF unless otherwise

specified)

Symbol Parameter

Test conditions

VO

Output voltage

TJ = 25°C

Min. Typ. Max. Unit

4.85 5 5.15

V

VO

Output voltage

IO = 5 mA to 1 A, PO ≤15 W VI = 8 to 20 V

4.65 5 5.35

V

Δ VO(1) Line regulation

VI = 7 to 25 V, TJ = 25°C

VI = 8 to 12 V, TJ = 25°C

3

50

mV

1

25

Δ VO(1) Load regulation

IO = 5 mA to 1.5 A, TJ = 25°C

IO = 250 to 750 mA, TJ = 25°C

100

mV

25

Id

Quiescent current

TJ = 25°C

8

mA

IO = 5 mA to 1 A

Δ Id

Quiescent current change

VI = 8 to 25 V

Δ VO/ÄT Output voltage drift

IO = 5 mA

0.5

mA

0.8

0.6

mV/°C

eN

Output noise voltage

B =10 Hz to 100 kHz, TJ = 25°C

40 µV/VO

SVR Supply voltage rejection VI = 8 to 18 V, f = 120 Hz

68

dB

Vd

Dropout voltage

IO = 1 A, TJ = 25°C

2 2.5

V

RO

Output resistance

f = 1 kHz

17

mÙ

Isc

Short circuit current

VI = 35 V, TJ = 25°C

0.75 1.2

A

Iscp

Short circuit peak current TJ = 25°C

1.3 1.9 2.2

A

1. Load and line regulation are specified at constant junction temperature. Changes in VO due

to heating effects must be taken into account separately. Pulse testing with low duty cycle is used.

3

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