L5987A データシートの表示（PDF） - STMicroelectronics

部品番号

コンポーネント説明

メーカー

L5987A

3 A step-down switching regulator

STMicroelectronics 

L5987

Electrical characteristics

Symbol

Table 4. Electrical characteristics (continued)

Parameter

Test condition

Values

Unit

Min. Typ. Max.

Error amplifier

VCH

VCL

IFB

IO SOURCE

IO SINK

GV

High level output voltage

Low level output voltage

Bias source current

Source COMP pin

Sink COMP pin

Open loop voltage gain

Synchronization function

High input voltage

Low input voltage

Slave sink current

Master output amplitude

Output pulse width

Input pulse width

VFB < 0.6 V

VFB > 0.6 V

VFB = 0 V to 0.8 V

VFB = 0.5 V, VCOMP = 1 V

VFB = 0.7 V, VCOMP = 1 V

(2)

VSYNCH = 2.9 V

ISOURCE = 4.5 mA

SYNCH floating

3

V

0.1

1

A

20

mA

25

mA

100

dB

2

3.3

V

1

0.7

0.9

mA

2.0

V

110

ns

70

Protection

IFBDISC

TSHDN

FB disconnection source current

Thermal shutdown

Hysteresis

1

A

150

°C

30

1.

Specification referred to

design, characterization

TanJ dfrosmtat-is4t0ictaol

+125 °C. Specification

correlation.

in

the

-40

to

+125

°C

temperature

range

are

assured

by

2. Guaranteed by design.

DocID14972 Rev 4

7/40

40

Share Link: