SP6659 データシートの表示（PDF） - Signal Processing Technologies

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SP6659

1.5MHz, 600mA Synchronous Buck Regulator

Signal Processing Technologies 

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 sections of the

specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.

Input Supply Voltage ......................................................... -0.3V to +6V

RUN, VFBVoltages .................................................. -0.3V to (VIN + 0.3V)

SW Voltage ............................................................ -0.3V to (VIN + 0.3V)

P-Channel Switch Source Current (DC) ..................................... 800mA

N-Channel Switch Sink Current (DC) ......................................... 800mA

Peak Switch Sink and Source Current ........................................... 1.3A

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

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

Junction Temperature (Note 1) .................................................. 125 °C

Lead Temperature (Soldering, 10 sec) ....................................... 300 °C

___________________________ THERMAL

RESISTANCE

Thermal Resistance is specified with approximately 1 square inch of 1 ounce copper.

OJA ................................................................207.4°C/W

OJC ...............................................................110°C/W

ELECTRICAL CHARACTERISTICS

VIN = VRUN = 3.6V, Io = 0mA, T AMB = -40ºC to +85ºC, typical values at 25ºC unless otherwise noted.

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

PARAMETER

Input Voltage Range

Input DC Supply Current

Active Mode

Shutdown Mode

VFB (Feedback Voltage)

VFB Input Bias Current

VFB Line Regulation

VFB Load Regulation

Regulated Output Voltage

Minimum Output Voltage

Peak inductor current

Oscillator frequency

P-channel ON resistance

N-channel ON resistance

SW Leakage Current

Run Threshold Voltage

Run Leakage Current

MIN

2.5

TYP

MAX

5.5

UNITS

V

♦

CONDITIONS

300

400

µA

VFB = 0.5V, VIN = VRUN

0.1

1

µA

VIN = 3.6V, VRUN = 0.0V

0.5880 0.6000 0.6120

TA = +25ºC

0.5865 0.6000 0.6135

V

0ºC < TA < +85ºC

0.5820 0.6000 0.6180

♦ -40ºC < TA < +85ºC

85

300

nA

VFB = 1.0V

0.4

1

%/V

♦ VIN = 2.5V to 5.5V

0.01

%/mA ♦ ILOAD = 0mA to 600mA

1.455 1.500 1.545

V

♦ SP6659EK1-1.5, -40ºC < TA < +85ºC

1.746 1.800 1.854

V

♦ SP6659EK1-1.8, -40ºC < TA < +85ºC

0.6

V

0.7

1.0

1.2

A

VFB = 0.5V, VIN = 2.5V

0.8

1.4

1.8

MHz ♦ Closed Loop, ILOAD = 100mA

0.4

0.6

Ω

0.4

0.6

Ω

±0.01 ±1.0

µA

ISW = 100mA

ISW = -100mA

VIN = 3.6V, VRUN = 0.0V,

Vsw = 0.0V, Vsw = VIN

0.2

1

1.3

V

♦

±0.01 ±1.5

µA

♦

Note 1: Junction Temperature TJ is calculated from the ambient temperature TA and ower dissipation PD

according to the following formula: TJ = TA + PD X 220°C/W

PIN DESCRIPTION

PIN # PIN NAME

DESCRIPTION

1

RUN

Power down control pin. Forcing this pin above 1.5V enables the device. Forcing this

pin below 0.3V shuts down the device.

2

GND

Ground pin.

3

SW

Switching node.

4

V

Power supply pin

IN

Adjustable Version: VFB, Feedback Input Pin. Connect FB to the center point of the

external resistor divider. The feedback threshold voltage is 0.6V.

5

VFB /

V

OUT

Fixed Output Version: VOUT, Output Voltage Feedback Pin. An internal resistive

divider drops the output voltage down for comparison to the internal reference voltage.

Date: 9/25/06 Rev C

SP6659 1.5MHz, 600mA Synchronous Buck Regulator

2

© 2006 Sipex Corporation

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