2

Date: 10/02/04

SP6122 Low Voltage, Micro 8, PFET, Buck Controller

© Copyright 2004 Sipex Corporation

ELECTRICAL CHARACTERISTICS

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.

Peak Output Current < 10µs

PDRV ......................................................................... 2A

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

Power Dissipation

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

ESD Rating ...................................................... 2kV HBM

PARAMETER

MIN

TYP

MAX

UNITS

CONDITIONS

QUIESCENT CURRENT

OVC Enabled

-

300

450

µA

OVC Disabled

-

250

360

µA

-

150

225

µA

No Switching, ISET = 0,

OVC Disabled, Ultra Low IQ

-

5

15

µA

Enable=0

REFERENCE

Output Voltage, Initial Accuracy

VR*0.985

VR

VR*1.015

V

VR = Factory Set Voltage,

see Note

Output Voltage, Over Line,

VR*0.980

VR

VR*1.020

V

VR = Factory Set Voltage,

Load and Temperature

see Note

Reference Comparator

-

5

-

mV

Internal Hysteresis at Feedback

Hysteresis

Terminal

-

23

-

µA

SP6122ACU-1.5 ONLY

OSCILLATOR

Oscillator Frequency

210

300

390

kHz

Minimum Pulse Width during

150

270

380

ns

Startup (Blanking Time)

Soft Start

Soft Start Ramp Time

-

3.5

-

ms

time from ENABLE = 1V to

PDRV Low

Soft Start Voltage when

-

250

-

mV

Measure VSoft Start when

PDRV Switches

PDRV goes Low. (internal)