SP6685 datasheet(2/14 Pages) EXAR

2 / 14 page

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Rev. 2.0.0

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.

VIN, VOUT ................................................... -0.3V to 6.0V

Output Current Pulse (FLASH).................................... 1A

Output Current Continuous (TORCH)........................ 0.4A

VEN .................................................................0V to 7V

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

Lead Temperature (Soldering, 10 sec) ................... 260°C

ESD Rating EN pin (HBM - Human Body Model) .......... 1kV

ESD Rating All Other Pins (HBM) .............................. 2kV

OPERATING RATINGS

Input Voltage Range VIN...............................2.7V to 5.5V

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

Thermal Resistance θJA ................................... 57.1°C/W

ELECTRICAL SPECIFICATIONS

Specifications with standard type are for an Operating Junction Temperature of TJ = 25°C only; limits applying over the full

Operating Junction Temperature range are denoted by a “•”. Minimum and Maximum limits are guaranteed through test,

design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for

reference purposes only. Unless otherwise indicated, VIN = 3.6, CIN = 4.7µF, CFC = COUT = 1µF. TA= –40°C to 85°C.

Parameter

Min.

Typ.

Max.

Units

Conditions

Operating Input Voltage

2.7

5.5

•

Quiescent Current

0.5

•

VIN = 2.7 – 5.5V FLASH = 0V

ILOAD = 100 µA

FLASH = VIN, 2x Mode

Shutdown Current

µA

VIN = 5.5V, VEN = 0V

Oscillator Frequency

2.4

MHz

Charge Pump Equivalent

Resistance (x2 Mode)

VFB = 0V, VIN = 3.6V

Charge Pump Equivalent

Resistance (x1 Mode)

0.6

0.8

VIN = 3.6V

FB Reference Voltage

138

150

162

•

FLASH = VIN, RSET = 88.7K

FB Reference Voltage

•

FLASH = GND

FB Pin Current

0.5

µA

VFB = 0.3V

EN, Flash Logic Low

0.4

•

EN, Flash Logic High

1.3

•

EN, Flash Pin Current

0.5

µA

•

VOUT Turn-on Time

250

500

µS

•

VIN = 3.6V, FB within 90% of regulation

Thermal Shutdown Temperature

145

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