L6928 datasheet(5/16 Pages) STMICROELECTRONICS

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L6928

Electrical characteristics

Doc ID 11051 Rev 6

5/16

Electrical characteristics

TJ = 25 °C, VIN = 3.6 V unless otherwise specified.

Table 4.

Electrical characteristics (1)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Vcc

Operating input voltage

After turn on

(1)

25.5

Vcc ON

Turn On threshold

2.2

Vcc OFF

Turn Off threshold

Vcc hys

Hysteresis

100

High side RON

Vcc = 3.6 V, Ilx =100 mA

240

300

(1)

400

Low side RON

Vcc = 3.6 V, Ilx =100 mA

215

300

(1)

400

Ilim

Peak current limit

Vcc = 3.6 V

11.2

1.5

(1)

0.85

1.65

Valley current limit

Vcc = 3.6 V

11.4

1.7

(1)

0.9

1.85

VOUT

Output voltage range

Vfb

VCC

fosc

Oscillator frequency

1.4

MHz

fsync

Sync mode clock (2)

MHz

DC characteristics

Quiescent current (low

noise mode)

Vsync = 0 V, no load,

VFB > 0.6 V

230

µA

Quiescent current (low

consumption mode)

Vsync = VCC, no load,

VFB > 0.6 V

(1)

µA

Ish

Shutdown current

RUN to GND, VCC = 5.5 V

0.2

µA

Ilx

LX leakage current (2)

RUN to GND, VLX = 5.5 V,

VCC = 5.5 V

1µA

RUN to GND, VLX = 0 V,

VCC = 5.5 V

1µA

Error amplifier characteristics

Vfb

Voltage feedback

0.593

0.600

0.607

(1)

0.590

0.600

0.610

Ifb

Feedback input current (2)

VFB = 0.6 V

Run

Vrun_H

RUN threshold high

1.3

Vrun_L

RUN threshold low

0.4

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