L5973AD 데이터 시트보기 (PDF) - STMicroelectronics

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L5973AD

2 A switch step down switching regulator

STMicroelectronics 

Electrical characteristics

L5973AD

Table 4. Electrical characteristics (continued)

( TJ = 25 °C, VCC = 12 V, unless otherwise specified)

Symbol

Parameter

Test condition

Icomp = -0.1 mA to

gm

Transconductance

0.1mA

VCOMP = 1.9 V

Min Typ Max Unit

2.3

mS

Sync function

High input voltage

Low input voltage

Slave sink current

Master output

amplitude

Output pulse width

VCC = 4.4 V to 36 V

VCC = 4.4 V to 36 V

Vsync = 0.74 V (1)

Vsync = 2.33 V

Isource = 3 mA

2.5

0.11

0.21

VREF

V

0.74 V

0.25 mA

0.45 mA

2.75 3

V

no load, Vsync = 1.65 V 0.20 0.35

µs

Reference section

Reference voltage

Line regulation

Load regulation

Short circuit current

IREF = 0 to 5 mA

VCC = 4.4 V to 36 V

IREF = 0 mA

VCC = 4.4 V to 36 V

IREF = 0 to 5 mA

3.234 3.3 3.366 V

3.2 3.3 3.399 V

5

10 mV

8

15 mV

10

18

30

mA

1. Guaranteed by design.

6/21

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