L5980 데이터 시트보기 (PDF) - STMicroelectronics

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L5980

0.7 A step-down switching regulator

STMicroelectronics 

Electrical characteristics

L5980

Table 4. Electrical characteristics (continued)

Symbol

Parameter

Test condition

Values

Unit

Min Typ Max

Error amplifier

VCH High level output voltage VFB < 0.6 V

3

VCL Low level output voltage VFB > 0.6 V

IFB

Bias source current

VFB = 0 V to 0.8 V

IO SOURCE Source COMP pin

VFB = 0.5 V, VCOMP = 1 V

IO SINK

GV

Sink COMP pin

Open loop voltage gain

VFB = 0.7 V, VCOMP = 1 V

(2)

Synchronization function

V

0.1

1

μA

17

mA

25

mA

100

dB

High input voltage

Low input voltage

Slave sink current

Master output amplitude

Output pulse width

VSYNCH = 2.9 V

ISOURCE = 200 μA

SYNCH floating

Input pulse width

2

3.3

V

1

0.7 0.9 mA

3.0

V

110

ns

70

Protection

IFBDISC

TSHDN

FB disconnection source

current

Thermal shutdown

Hysteresis

1

μA

150

°C

30

1. Specification referred to TJ from -40 to +125 °C. Specification in the -40 to +125 °C temperature range are

assured by design, characterization and statistical correlation.

2. Guaranteed by design.

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