L6928(2006) データシートの表示（PDF） - STMicroelectronics

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L6928
(Rev.:2006)

High efficiency monolithic synchronous step down regulator

STMicroelectronics 

L6928

3

Electrical characteristics

Table 4. Electrical characteristcs

(TJ = 25°C, VIN = 3.6V unless otherwise specified) (1)

Symbol

Parameter

Test condition

Vcc Operating input voltage

After turn on

Vcc ON Turn On threshold

Vcc OFF Turn Off threshold

Vcc hys Hysteresis

Rp High side Ron

Vcc = 3.6V, Ilx =100mA

Rn Low side Ron

Vcc = 3.6V, Ilx =100mA

Peak current limit

Ilim

Valley current limit

Vout

fosc

fsync

Output voltage range

Oscillator frequency

Sync mode clock (2)

DC characteristics

Quiescent current (low

noise mode)

Iq

Quiescent current (low

cunsumption mode)

Ish Shutdown current

Ilx

LX leakage current (2)

Error amplifier characteristics

Vcc = 3.6V

Vcc = 3.6V

Vsync = 0V, no load,

VFB > 0.6V

Vsync = Vcc, no load,

VFB > 0.6V

RUN to GND, Vcc = 5.5V

RUN to GND, VLX = 5.5V,

Vcc = 5.5V

RUN to GND, VLX = 0V,

Vcc = 5.5V

Vfb Voltage feedback

Ifb

Feedback input current (2) VFB = 0.6V

Electrical characteristics

Min Typ Max Unit

(1)

2

5.5

V

2.2

V

2

V

100

mV

240 300

mΩ

(1)

400

215 300

mΩ

(1)

400

1

1.2 1.5

(1) 0.85

A

1.65

1

1.4 1.7

(1) 0.9

A

1.85

Vfb

Vcc

V

1.4

MHz

1

2 MHz

230

µA

(1)

25

50

µA

0.2

µA

1

µA

1

µA

0.593 0.600 0.607 V

(1) 0.590 0.600 0.610 V

25

nA

5/16

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