M7085 Datasheet, PDF (1/8 Pages) Unisonic Technologies – PFM STEP-DOWN DC-DC CONTROLLER

UNISONIC TECHNOLOGIES CO., LTD
M7085


PFM STEP-DOWN DC-DC
CONTROLLER
CMOS IC
DESCRIPTION
The UTC M7085 step-down DC-DC Controller is optimized for
use with a power PMOSFET. It utilize a Pulse-Frequency
Modulation (PFM) control scheme that implies high efficiency
operation at light loads.
There are two user-selectable over-current protection methods
one provides over-current protection by taking advantage of the
R_DS(ON) of the P- Channel. The other provides accurate over-current
protection with the use of an external sense resistor. The
cycle-by-cycle current limit threshold can be adjusted with a
external resistor.
FEATURES
* High efficiency 90% and up is possible
* Low dropout operationğ100% duty cycle
* Maximum operating frequency > 1MHz
* Two methods of over-current protection
* 4.5V ~ 35V wide input range
* 1.24V ~ V_IN adjustable output range
ORDERING INFORMATION
Order Number
Normal
Lead Free Plating
M7085-SM1-R
M7085L-SM1-R
M7085-SM1-T
M7085L-SM1-T
Package
MSOP-8
MSOP-8
MSOP -8
*Pb-free plating product number: M7085L
Packing
Tape Reel
Tube
M7085L-SM1-R
(1)Packing Type
(2)Package Type
(3)Lead Plating
(1) R: Tape Reel, T: Tube
(2) SM1: MSOP-8
(3) L: Lead Free Plating, Blank: Pb/Sn
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., Ltd
1 of 8
QW-R502-092,A