MP3305 datasheet(2/11 Pages) MPS

2 / 11 page

MP3305 –36V, 1.3A, STEP-UP WHITE LED DRIVER WITH HIGH FREQUENCY TRUE PWM DIMMING & ADJUST OVP

MP3305 Rev. 1.0

www.MonolithicPower.com

4/10/2013

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

ORDERING INFORMATION

Part Number*

Package

Top Marking

Free Air Temperature (TA)

MP3305DD

QFN8 (2mm x 3mm)

-40

°C to +85°C

* For Tape & Reel, add suffix –Z (e.g. MP3305DD–Z).

For RoHS compliant packaging, add suffix –LF (e.g. MP3305DD–LF–Z)

PACKAGE REFERENCE

ABSOLUTE MAXIMUM RATINGS (1)

SW Pin, LED Pin...........................-0.5V to +40V

All Other Pins...............................-0.3V to +6.5V

Storage Temperature............... -55

°C to +150°C

Continuous Power Dissipation (TA = +25°C)

(2)

………………………………………………....1.9W

Recommended Operating Conditions

(3)

IN Supply Voltage .................................3V to 6V

SW Pin................................................VIN to 36V

Operating Junct. Temp (TJ)...... -40°C to +125°C

Thermal Resistance

(4)

θJA

θJC

QFN8 (2mm x 3mm) ...............65 ...... 13 ...

°C/W

Notes:

1) Exceeding these ratings may damage the device.

2) The maximum allowable power dissipation is a function of the

maximum junction temperature TJ (MAX), the junction-to-

ambient thermal resistance θJA, and the ambient temperature

TA. The maximum allowable continuous power dissipation at

any ambient temperature is calculated by PD (MAX) = (TJ

(MAX)-TA)/θJA. Exceeding the maximum allowable power

dissipation will cause excessive die temperature, and the

regulator will go into thermal shutdown. Internal thermal

shutdown circuitry protects the device from permanent

damage.

3) The device is not guaranteed to function outside of its

operating conditions.

4) Measured on JESD51-7, 4-layer PCB.

TOP VIEW

PGND

VIN

OVP

GND

ISET

LED

Exposed Pad

Connect to GND

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