FAN5193MTCX 데이터 시트보기 (PDF) - Fairchild Semiconductor

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FAN5193MTCX

Two Phase Interleaved Synchronous Buck Converter

Fairchild Semiconductor 

FAN5193

PRODUCT SPECIFICATION

Electrical Specifications

(VCC = 12V,VOUT = 1.500V, and TA = +25°C using circuit in Figure 1, unless otherwise noted.)

The • denotes specifications which apply over the full operating temperature range.

Parameter

Conditions

Output Voltage

See Table 1

•

Output Current

Internal Reference Voltage

Initial Voltage Setpoint

ILOAD = 5A

Output Temperature Drift

TA = 0 to 70°C

Line Regulation

Droop3

VCC = 11.4V to 12.6V

•

ILOAD = 0.8A to Imax

Programmable Droop Range

Total Output Variation,

ILOAD = 0.8A to Imax

•

Steady State1

Total Output Variation, Transient2 ILOAD = 0.8A to Imax

•

Response Time

∆Vout = 10mV

Gate Drive On-Resistance

Upper Drive Low Voltage

VHDRV–VSW at Isink = 10µA

Upper Drive High Voltage

VBOOT–VHDRV at Isource = 10µA

Lower Drive Low Voltage

Isink = 10µA

Lower Drive High Voltage

VCC–VLDRV at Isource = 10µA

Output Driver Rise & Fall Time See Figure 3

Current Mismatch

RDS,on (A) = RDS,on (B), ILOAD = Imax

Output Overvoltage Detect

•

Efficiency

ILOAD = Imax

ILOAD = 2A (E*-mode)

Oscillator Frequency

RT = 41.2KΩ

•

Oscillator Range

RT = 125KΩ to 12.5 KΩ

Maximum Duty Cycle

RT = 125KΩ

Minimum LDRV on-time

RT = 12.5KΩ

Input LOW current, VID pins

VVID = 0.4V

Soft Start Current

Enable Threshold

ON

OFF

BYPASS Voltage

BYPASS Capacitor

PWRGD Threshold

Logic LOW, minimum

•

Logic LOW, maximum

•

PWRGD Hysteresis

PWRGD Output Voltage

Isink = 4mA

PWRGD Delay

High → Low

12V UVLO

•

UVLO Hysteresis

12V Supply Current

HDRV and LDRV Open

Over Temperature Shutdown

Over Temperature Hysteresis

Min.

1.100

1.4925

1.485

-90

-10

1.430

1.430

2.1

450

200

0A

4.75

100

85

108

8.5

Typ.

40

1.5000

1.500

+5

+130

-100

100

2.0

0.2

0.5

0.2

0.5

20

5

85

70

600

90

330

10

5

88

111

20

500

9.5

0.5

5

150

25

Max.

1.850

1.5075

1.515

-110

0

1.570

1.570

2.3

750

2000

50

1.0

5.25

92

115

0.4

10.5

Units

V

A

V

V

mV

µV

mV

%Vout

V

V

nsec

Ω

V

V

V

V

nsec

%

V

%

KHz

KHz

%

nsec

µA

µA

V

V

nF

%Vout

mV

V

µsec

V

V

mA

°C

°C

4

REV. 1.0.1 2/4/02

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