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PDF M7085 Data sheet ( Hoja de datos )
| Número de pieza | M7085 | |
| Descripción | PFM STEP-DOWN DC-DC CONTROLLER | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de M7085 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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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
RDS(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 operation 100% duty cycle
* Maximum operating frequency > 1MHz
* Two methods of over-current protection
* 4.5V ~ 35V wide input range
* 1.24V ~ VIN 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
1 page  
M7085
TYPICAL APPLICATION CIRCUIT
VIN
4.5V ~ 35V
CIN
22µF
RADJ
UTC M7085
CADJ
5 ADJ
PGATE 7
ISENSE 1
6 VIN
FB 4
2.6
Q1
L1
22µH
D1 R1
33K
R2
20K
CMOS IC
VOUT
3.3V
COUT
100uF
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 8
QW-R502-092,A
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet M7085.PDF ] | |
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