SP6652EU-L データシートの表示（PDF） - Signal Processing Technologies

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SP6652EU-L

1A, High Efficiency, Fixed 1.4 MHz Current Mode PWM Buck Regulator

Signal Processing Technologies 

PVIN,SVIN ...........................................................................-0.3V to 6.0V

PGND to SGND .....................................................................-0.3V to 0.3V

LX to PGND ............................................................... - 0.3V to PVIN+0.3V

Storage Temperature....................................................-65 °C to 150 °C

Operating Temperature.................................................. -40°C to +85°C

ABSOLUTE MAXIMUM RATINGS

These are stress ratings only and functional operation of the device at

these ratings or any other above those indicated in the operation sec-

tions of the specifications below is not implied. Exposure to absolute

maximum rating conditions for extended periods of time may affect

reliability.

Electrical CHARACTERISTICS

VIN = UVIN = VSDN = 3.6V, IO = 0mA, TAMB = -40°C to +85°C, typical values at 27°C unless otherwise noted.

The ♦ denotes the specifications which apply over the full temperature range, unless otherwise specified.

PARAMETER

Input Operating Voltage

FB Set Voltage

FB Set Current

Overall FB Accuracy

Switching Frequency

Minimum On-Time-Duration

SYNC Tracking Frequency

SYNC Input Current

SYNC Logic Threshold Low

SYNC Logic Threshold High

PMOS Switch Resistance

NMOS Switch Resistance

Inductor Current Limit

LX Leakage Current

VIN Quiecent Current

UVLO Undervoltage Lockout Threshold,

VIN falling

UVLO hysteresis

Soft Start Current

MIN TYP MAX UNITS

CONDITIONS

2.85

5.5 V

0.784 0.8 0.816 V

-1 0.01 1 µA

-4

4

%

1.2 1.4 1.6 MHz

100 200 ns

1.0

2.0 MHz

-1 0.01 1 µA

0.3 0.6 V

1.7

V

0.4 0.6 Ω

0.4 0.6 Ω

♦

Result of IQ measurement at VIN = PVIN

= 5.5V

♦

♦ VFB = 0.8V

♦ FB = COMP

Mode = SD = VIN

VFB = 1.0V, VCOMP = 0.2V

♦ Mode = SD = VIN, VFB =1.0V

♦

♦ High to Low Transition

♦ Low to High Transition

♦ IPMOS = 200mA

♦ INMOS = 200mA

1.3 1.5 1.7

A

♦ VFB = 0.4V, Mode = SD = VIN

-3 0.1 3 µA ♦ SD = ZeroV

1 5 mA

3 10 mA

VIN = 3.6V, Mode = SD = VIN

VIN = 5.5V, Mode = SD = VIN

2.55 2.7 2.85 V

♦ SD = VIN

6

%

1

2

4

µA ♦ SD = VIN, VCOMP = 1V

SD MODE Input Current

SD MODE Input Threshold Voltage

Slope Compensation

-1 0.01 1 µA ♦

0.9

V ♦ High to Low Transition

0.6

1.25 1.8

V

♦ Low to High Transition

700

mA/µS

Rising Over-Temperature Trip Point

140

°C

Over-Temperature Hysteresis

14

°C

Error Amplifier Transconductance

1

mA/V

May25-07 RevH

SP6652 1A, High Efficiency, Current Mode PWM Buck Regulator



© 2007 Sipex Corporation

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