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CM3706A

1.5MHz, 600mA Synchronous Step-Down Regulator

Champion Microelectronic 

CM3706A

1.5MHz, 600mA Synchronous Step-Down Regulator

ELECTRICAL CHARACTERISTICS (Unless otherwise stated, these specifications apply TA=25°C;

VIN=+3.6V) maximum ratings are stress ratings only and functional device operation is not implied.

Parameter

Conditions

Input Voltage Range

Input DC Supply Current

Active Mode

Shutdown Mode

Regulated Feedback Voltage

VFB Input Bias Current

Reference Voltage Line

Regulation

VFB=0.5V

VFB=0V, VIN=4.2V

TA = +25°C

TA= 0°C ≤ TA ≤ 85°C

TA= -40°C ≤ TA ≤ 85°C

VFB = 0.65V

VIN = 2.5V to 5.5V,

Output Voltage Line Regulation VIN = 2.5V to 5.5V,IOUT=10mA

IOUT from 10 to 600mA

Output Voltage Load Regulation

MIN TYP MAX unit

2.5

6.5

V

300

400

µA

0.1

1.0

µA

0.5880 0.6000 0.6120

V

0.5865 0.6000 0.6135

V

0.5820 0.6000 0.6180

V

±30

nA

0.01

0.4

0.04

0.40

0.0015

%/V

%/V

%/mA

Peak Inductor Current

Oscillator Frequency

RDS(ON) of P-CH MOSFET

RDS(ON) of N-CH MOSFET

SW Leakage

RUN Threshold

RUN Leakage Current

Thermal Shutdown Trip

Threshold

Output over voltage lockout

VIN=3V, VFB=0.5V or VOUT=90%

Duty Cycle <35%

VFB=0.6V or VOUT=100%

ISW = 300mA

ISW = -300mA

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

-40°C ≤ TA ≤ 85°C

ΔVOVL = VOVL – VFB

0.75

1.00

1.25

1.2

1.5

1.8

0.4

0.50

0.35

0.45

±0.01

±1

0.3

0.45

1.5

±0.1

±1

150

60

A

MHz

Ω

Ω

µA

V

µA

℃

mV

Note 4: 100% production test at +25°C. Specifications over the temperature range are guaranteed by design and

characterization.

2008/03/07 Rev. 1.0

Champion Microelectronic Corporation

Page 5

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