SP6691 datasheet(2/15 Pages) SIPEX

2 / 15 page

Date: 5/25/04

SP6691 Micro Power Boost Regualtor, Series White LED Driver

IN ....................................................................... 15V

SW Voltage .............................................. -0.4 to 34V

FB Voltage ......................................................... 2.5V

All other pins ................................... -0.3 to V

IN + 0.3V

Current into FB ................................................. ±1mA

J Max ............................................................. 125°C

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

Peak Output Current < 10us SW .................... 500mA

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

♦

CONDITIONS

Input Voltage

VIN

1.0

13.5

Supply Current

µA

♦

No Switching

0.01

µA

♦

SHDN = 0V (off)

Reference Voltage

VFB

1.17

1.22

1.27

♦

FB Hysteresis

HYST

VFB Input Bias Current

IFB

♦

VFB = 1.22V

Line Regulation

∆Vo/∆VI

0.1

0.3

%/V

1.2 ≤ VIN ≤ 13.5V

Switch Off Time

TOFF

250

Switch Saturation Voltage

VCESAT

170

450

♦

ISW = 325mA

Switch Current Limit

ILIM

325

450

575

♦

SHDN Bias Current

ISHDN

512

µA

♦

VSHDN = 3.3V

SHDN High Threshold (on)

VIH

0.9

SHDN Low Threshold (off)

VIL

0.25

Switch Leakage Current

ISWLK

0.01

µA

♦

Switch Off, VSW = 5V

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

Power Dissipation. ......................................... 200mW

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

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

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.

PIN DESCRIPTION

ELECTRICAL CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

PIN NUMBER

PIN NAME

DESCRIPTION

1SW

Switch input to the internal power switch.

GND

Ground

3FB

Feedback

SHDN

Shutdown. Pull high (on) to enable. Pull low (off) for shutdown.

5VIN

Input Voltage. Bypass this pin with a capacitor as close to the device

as possible.

Specifications are at TA=25°C, VIN =3.3, VSHDN =VIN,

♦

♦ denotes the specifications which apply over the full operating

temperature range, unless otherwise specified.

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