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SC4602B

Semtech Corporation
Part Number SC4602B
Manufacturer Semtech Corporation
Description Step Down Controller
Published Nov 17, 2008
Detailed Description High Efficiency Synchronous, Step Down Controller POWER MANAGEMENT Description The SC4602A/B is a voltage mode step down...
Datasheet PDF File SC4602B PDF File

SC4602B
SC4602B

Overview
High Efficiency Synchronous, Step Down Controller POWER MANAGEMENT Description The SC4602A/B is a voltage mode step down (buck) regulator controller that provides accurate high efficiency power conversion from an input supply range of 2.
75V to 5.
5V.
A high level of integration reduces external component count and makes it suitable for low voltage applications where cost, size and efficiency are critical.
The SC4602A/B drives external complementary power MOSFETs; P-channel on the high side and N-channel on www.
DataSheet4U.
com the low side.
The use of high side P-channel MOSFET eliminates the need for an external charge pump and simplifies the high side gate driver.
Non-overlap protection is provided for the gate drive signals to prevent shoot through of the MOSFET pair.
Voltage drop across the Pchannel MOSFET during its conduction is sensed for lossless short circuit current limiting.
A low power sleep mode can be achieved by forcing the SYNC/SLEEP pin below 0.
8V.
A synchronous mode of ...


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