MIC2870 Series

1.5A Synchronous Boost Flash LED Driver

Catalog

1.5A Synchronous Boost Flash LED Driver

Part	Voltage - Supply (Min)	Topology	Number of Outputs	Current - Output / Channel	Package / Case	Applications	Mounting Type	Voltage - Supply (Max)	Internal Switch(s)	Voltage - Output	Frequency	Operating Temperature (Max)	Operating Temperature (Min)	Dimming	Package Name	Package Width	Package Length	Type	Total Output Count	Output Type	Non-Isolated Output Count	Supplied Contents	Voltage - Input (Maximum)	Voltage - Input (Minimum)	Utilized IC / Part	Contents
Microchip Technology MIC2870YFT-TR	2.7 V	Step-Up (Boost)	2	1.5 A	16-UFQFN Exposed Pad	Camera Flash	Surface Mount	5 V	Yes	5.2 V	2 MHz	125 °C	-40 °C	I2C	16-TQFN	2 mm	2 mm	DC DC Regulator
Microchip Technology MIC2870YFT-EV				1.5 A															2	Non-Isolated	2 count	Board(s)	5 V	2.7 V	MIC2870	Board

Catalog

1.5A Synchronous Boost Flash LED Driver

Description

The MIC2870 is a high-current, high-efficiency flash LED driver for one or two high-brightness camera flash LEDs. The LED driver current is generated by an integrated inductive boost converter with 2MHz switching frequency which allows the use of a very-small inductor and output capacitor. These features make the MIC2870 an ideal solution for high-resolution camera phone LED flashlight driver applications. MIC2870 supports two 750mA white-LEDs (WLEDs) or a single 1.5A WLED configuration. When two WLEDs are connected, their currents are matched automatically. MIC2870 operates in either flash or torch modes that can be controlled through either an I2C interface or external pins. The brightness in the flash and torch mode can be adjusted via two external resistors individually. High-speed mode I2C interface provides a simple control at a clock speed up to 3.4MHz to support most camera functions such as auto-focus, white balance, and image capture (flash mode). The MIC2870 is available in 16-pin, 2mm × 2mm TQFN package with a junction temperature range of −40°C to +125°C.