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MP3309 Datasheet Preview

MP3309 Datasheet

White LED Driver

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The Future of Analog IC Technology
DESCRIPTION
The MP3309 is a WLED step-up converter for
2.7V-to-5.5V input that uses peak-current mode
to regulate the LED current sensed through an
external, low-side resistor. The 200mV
feedback voltage and synchronous rectification
reduces power loss and reduces PCB space
requirements.
The MP3309 features a programmable
switching frequency to optimize efficiency. It
supports both analog and PWM dimming.
In addition, the MP3309 has LED open
protection, cycle-by-cycle current limit
protection, Under voltage protection and
thermal shutdown protection
.
TYPICAL APPLICATION
MP3309
2.7V-5.5V Input, 35V Output
White LED Driver
FEATURES
2.7V-to-5.5V Input Voltage
Analog and PWM Dimming
Programmable Switching Frequency
Low 200mV Feedback Voltage with ±1%
Internal Soft Start
UVLO, Thermal Shutdown, OCP
Available in a 1.4mm ×1.8mm QFN-10
package
APPLICATIONS
Feature Phones and Smart Phones
Tablets
<10inchVideo Displays
All MPS parts are lead-free, halogen free, and adhere to the RoHS
directive. For MPS green status, please visit MPS website under Quality
Assurance.
“MPS” and “The Future of Analog IC Technology” are Registered
Trademarks of Monolithic Power Systems, Inc.
Typical Application Circuit
MP3309 Rev. 1.02
www.MonolithicPower.com
1
5/21/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.




MPS

MP3309 Datasheet Preview

MP3309 Datasheet

White LED Driver

No Preview Available !

MP3309 2.7V-5.5V INPUT, 35V OUTPUT, fs-PROGRAMMABLE, WHITE LED DRIVER
ORDERING INFORMATION
Part Number
MP3309GQG*
Package
QFN-10 (1.4mm×1.8mm)
Top Marking
BM
* For Tape & Reel, add suffix –Z (e.g. MP3309GQG–Z);
PACKAGE REFERENCE
TOP VIEW
QFN-10 (1.4mm×1.8mm)
ABSOLUTE MAXIMUM RATINGS (1)
VIN ...................................................-0.3V to +6V
VSW, VOUT…………………………..…-1V to +40V
VBST ......................................... -0.3V to VSW +6V
All Other Pins .................................–0.3V to +6V
Junction Temperature ...............................150°C
Lead Temperature ....................................260°C
Continuous Power Dissipation (TA = 25°C) (2)
................... ................... ........................0.892W
Recommended Operating Conditions (3)
Supply Voltage VIN .......................... 2.7V to 5.5V
Operating Junction Temp. (TJ). -40°C to +125°C
Thermal Resistance (4) θJA θJC
QFN-10 (1.4mm×1.8mm) ..... 140...... 30 °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.
MP3309 Rev. 1.02
www.MonolithicPower.com
2
5/21/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.


Part Number MP3309
Description White LED Driver
Maker MPS
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MP3309 Datasheet PDF






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