L78S15T 데이터 시트보기 (PDF) - STMicroelectronics

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L78S15T

2 A positive voltage regulators

STMicroelectronics 

L78Sxx - L78SxxC

Electrical characteristics

Table 11.

Symbol

Electrical characteristics of L78S24 (refer to the test circuits, TJ = 25 °C, VI = 33 V,

IO = 500 mA, unless otherwise specified)

Parameter

Test conditions

Min. Typ. Max. Unit

VO

VO

ΔVO

ΔVO

IQ

ΔIQ

ΔVO/ΔT

eN

Output voltage

Output voltage

Line regulation

Load regulation

Quiescent current

Quiescent current change

Output voltage drift

Output noise voltage

IO = 1A, VI = 27V

VI = 27 to 38V

VI = 30 to 36V

IO = 20 mA to 2A

IO = 20mA to 1A

VI = 27 to 38 V, IO = 20mA

IO = 5mA, TJ = -55°C to 150°C

B =10Hz to 100kHz

23

24

25

V

22.8 24 25.2 V

480

mV

240

250 mV

8

mA

0.5

mA

1

-1.5

mV/°C

170

µV

SVR

VI

RO

Isc

Iscp

Supply voltage rejection

Operating input voltage

Output resistance

Short circuit current

Short circuit peak current

f = 120Hz

IO ≤1.5A

f = 1 kHz

VI = 27V

48

dB

27

V

23

mΩ

500

mA

3

A

Table 12.

Symbol

Electrical characteristics of L78S05C (refer to the test circuits, TJ = 25 °C, VI = 10 V,

IO = 500 mA, unless otherwise specified)

Parameter

Test conditions

Min. Typ. Max. Unit

VO

VO

ΔVO

ΔVO

IQ

ΔIQ

ΔVO/ΔT

eN

Output voltage

Output voltage

Line regulation

Load regulation

Quiescent current

Quiescent current change

Output voltage drift

Output noise voltage

IO = 1A, VI = 7V

VI = 7 to 25V

VI = 8 to 25V

IO = 20 mA to 1.5A

IO = 2A

IO = 20mA to 1A

VI = 7 to 25 V, IO = 20mA

IO = 5mA, TJ = 0°C to 70°C

B =10Hz to 100kHz

SVR Supply voltage rejection f = 120Hz

VI Operating input voltage IO ≤1A

RO Output resistance

f = 1 kHz

Isc Short circuit current

VI = 27V

Iscp Short circuit peak current

4.8

5

5.2

V

4.75 5 5.25 V

100

mV

50

100

mV

80

8

mA

0.5

mA

1.3

-1.1

mV/°C

40

µV

54

dB

8

V

17

mΩ

500

mA

3

A

11/31

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