SP6682 datasheet(2/12 Pages) SIPEX

2 / 12 page

Date: 5/5/04

SP6682 High Efficiency Charge Pump Regulator for White LEDs

PARAMETER

MIN

TYP

MAX

UNITS

CONDITIONS

Input Voltage

2.7

5.5

Quiescent Current

1.2

VIN = 4.2V, VOUT = 3.6V, IOUT = 100µA

Shutdown Current

1.5

µA

EN/PWM = 0V, VIN = 5.5V

Oscillator Frequency

0.42

0.60

0.78

MHz

VIN = 3.6V

VFB Reference Voltage

0.275

0.306

0.337

Charge Pump Output

Ω

FB = 0V, VIN = 3.6V,

Resistance

IOUT = 20mA, VMODE = High

VMODE Threshold Voltage

1.15

1.25

1.35

VIN Falling @ 25°C

Hysteresis for Mode Transition

mVPP

VIN = 3.6V @ 25°C

Voltage

VMODE Pin Current

0.01

0.5

µAVMODE = 1.25

EN/PWM Logic Low

0.4

EN/PWM Logic High

1.6

EN/PWM Pin Current

0.01

0.5

µAVEN/PWM = 4.2V

FB Pin Current

0.5

µAVFB = 1V

VOUT Turn-On Time

175

500

µsVIN = 3.6V, FB within 90% regulation

ELECTRICAL CHARACTERISTICS

Unless otherwise specified: VIN =+2.7V to +5.0V, C1=C2=C4=C5=2.2µF (ceramic, ESR=0.03Ω), C3=0.1µF

(ceramic) and TAMB =-40°C to +85°C unless otherwise noted.

IN, VMODE, VOUT and EN/PWM ................. -0.3V to 6V

IN - VOUT ........................................................... 0.7V

Output Current (I

OUT) ...................................... 120mA

Power Dissipation per Package - 10-pin MSOP

(derate 8.84mW/°C above +70°C) ................. 720mW

Junction Temperature .................................... +125°C

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

ABSOLUTE MAXIMUM RATINGS

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