FSP3112MSAD datasheet(3/10 Pages) FOSLINK

3 / 10 page

DUAL CHANNEL1.5 MHZ, 600MA SYNCHRONOUS STEP-DOWN CONVERTER

2007-7-11

3/10

FSP3112

ABSOLUTE MAXIMUM RATINGS (NOTE 1)

Parameter

Rating

Unit

Input Supply Voltage

-0.3 to +6

RUN1, RUN2

-0.3 to VIN+0.3

VFB1, VFB2 Voltages

-0.3 to VIN+0.3

SW1, SW2 Voltages

-0.3 to VIN+0.3

POR Voltages

-0.3 to +6

Peak SW1,SW2 Sink and Source Current

1.5

Operating Temperature Range

-40 to +85

℃

Junction Temperature (Note 2)

+125

℃

Storage Temperature Range

-65 to 150

℃

Lead Temperature (soldering, 10 sec.)

+300

℃

Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.

Note 2: TJ is calculated from the ambient temperature TA and power dissipation PD according to the following formula:

TJ=TA+PD×θJA

ELECTRICAL CHARACTERISTICS (NOTE 3)

(VIN=VRUN=3.6V, TA=25℃, Test circuit of Figure 1, Unless otherwise noted)

Parameter

Condition

Min.

Typ.

Max.

Unit

Input Voltage Range

2.5

5.5

Input DC Supply Current

Active Mode

Shutdown Mode

VFB1=VFB2=0.5V,

RUN=0V, VIN=4.2V

500

0.3

800

µA

TA=+25℃, Channel 1 or 2

0.5880

0.6000

0.6120

TA=0℃≤TA≤85℃, Channel 1 or 2

0.5865

0.6000

0.6135

Regulated Feedback Voltage

TA=-40℃≤TA≤85℃, Channel 1 or 2 0.5850 0.6000 0.6150

Feedback Pin Input Current

VFB=0.65V

Reference Voltage Line Regulation

VIN=2.5V to 5.5V

0.11

0.40

%/V

Output Voltage Line Regulation

VIN=2.5V to 5.5V, VOUT=1.8V,

IOUT=10mA

0.11

0.40

%/V

Output Voltage Load Regulation

VIN=3.6V, IOUT=0 to 600mA,

0.0015

%/mA

Maximum Output Current

VIN=3.0V

600

Oscillator Frequency

VFB 1/2= 0.6V

1.2

1.5

1.8

MHz

RDS(ON) of P-CH MOSFET

ISW=300mA

0.35

0.45

RDS(ON) of N-CH MOSFET

ISW=-300mA

0.28

0.45

Peak Inductor Current

VIN=3V,VFB1=VFB2=0.5V,

Duty cycle＜35%

1.2

SW Leakage

VRUN=0V, VSW=0V or 5V, VIN=5V

0.01

µA

RUN Threshold

-40℃≤TA≤85℃

0.3

0.45

1.50

RUN Leakage Current

0.1

µA

VFBX Ramping Up

8.5

VFBX Ramping Down,

-8.5

Power-On Reset Delay

175

Power-On Reset Threshold (POR)

Power-On Reset On-Resistance

100

Note 3: 100% production test at +25℃. Specifications over the temperature range are guaranteed by design and

characterization.

THERMAL RESISTANCE (NOTE 4)

Package

θJA (℃/W)

θJC (℃/W)

MSOP-10 (EXPOSE PAD)

DFN-10 (EXPOSE PAD)

Note 4: Thermal Resistance is specified with approximately 1 square of 1 oz cooper.

FSP3112MSAD датащи(PDF) 3 Page - FOSLINK SEMICONDUCTOR CO.,LTD

FSP3112MSAD датащи(HTML) 3 Page - FOSLINK SEMICONDUCTOR CO.,LTD

Html Pages

1 2 3 4 5 6 7 8 9 10

датащи скачать

ссылки URL