SP6654 데이터 시트보기 (PDF) - Signal Processing Technologies

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SP6654

High Efficiency 800mA Synchronous Buck Regulator

Signal Processing Technologies 

ELECTRICAL CHARACTERISTICS

VIN=PVIN=VSDN=3.6V, VOUT=VFB, IO = 0mA, TAMB = -40°C to +85°C, The ♦ denotes the specifications wich apply over

the full operating temperature range, unless otherwise specified.

PARAMETER

UVLO Undervoltage Lockout

Threshold, VIN falling

UVLO hysteresis

PWRGD Low Output Voltage

PWRGD Leakage Current

PWRGD Rising Threshold

PWRGD Hysterisis

D1,D0 Leakage Current

D1,D0 Input Threshold Voltage

FB Leakage Current

MIN

2.55

2.70

2.85

0.60

TYP MAX UNITS

CONDITIONS

2.70 2.85

♦ D1 = 0V, D0 = VIN

2.85 3.00

V ♦ D1 = V , D0 = 0V

IN

3.00 3.15

40

0.4

1

-6

80

1

500

♦ D1 = VIN, D0 = VIN

mV

TAMB = 27° C

V ♦ V = 3.3V, I = 1mA

IN

SINK

µA ♦ VPWRGD =3.6V

%

FB Set Voltage -6%,

TAMB=27° C

mV

TAMB=27° C

nA ♦

0.90

1.25 1.8

♦ High to Low Transition

V

♦ Low to High Transition

1

100

nA

FB = 1V

D1

D0

0

0

Shutdown. All internal circuitry is disabled and the power switches are opened.

0

1

Device enabled, falling UVLO threshold =2.70V

1

0

Device enabled, falling UVLO threshold =2.85V

1

1

Device enabled, falling UVLO threshold =3.00V

Table 1. Operating Mode Definition

Date: 2/1/05

SP6654 High Efficiency 800mA Synchronous Buck Regulator

3

© Copyright 2005 Sipex Corporation

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