LTC1625CS

LTC1625CS, synchronous step-down switching regulator controller, 36V, 2A, SOP

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Price:: US $3.00~3.00 / piece [Get Latest Price]

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PartNumber:: LTC1625CS

Brand:: Linear Technology - Linear | Pack: SOP | D/C: 11+

Availability:: Supply Ability: 10000/Day Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Products Upload time: 2013-04-17

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Part Number:LTC1625CS
US $3.00 - 3.00
Quantity:

piece

Product Summary

The LTC1625CS is a synchronous step-down switching regulator controller that drives external N-Channel power MOSFETs using few external components. Current mode control with MOSFET VDS sensing eliminates the need for a sense resistor and improves efficiency. The frequency of a nominal 150kHz internal oscillator can be synchronized to an external clock over a 1.5:1 frequency range. The applications of the LTC1625CS include Notebook and Palmtop Computers, PDAs, Cellular Telephones and Wireless Modems, Battery Chargers, Distributed Power.

Parametrics

LTC1625CS absolute maximum ratings: (1)Input Supply Voltage (VIN, TK): 36V to -0.3V; (2)Boosted Supply Voltage (BOOST): 42V to -0.3V; (3)Boosted Driver Voltage (BOOST -SW): 7V to -0.3V; (4)Switch Voltage (SW): 36V to -5V; (5)EXTVCC Voltage: 7V to -0.3V; (6)ITH Voltage: 2.7V to -0.3V; (7)FCB, RUN/SS, SYNC Voltages: 7V to -0.3V; (8)VOSENSE, VPROG Voltages: (INTVCC + 0.3V) to -0.3V; (9)Peak Driver Output Current < 10ms (TG, BG): 2A; (10)INTVCC Output Current: 50mA; (11)Operating Ambient Temperature Range: 0℃ to 70℃; (12)Junction Temperature (Note 2): 125℃; (13)Storage Temperature Range: -65℃ to 150℃; (14)Lead Temperature (Soldering, 10 sec): 300℃.

Features

LTC1625CS features: (1)Highest Efficiency Current Mode Controller; (2)No Sense Resistor Required; (3)Stable High Current Operation; (4)Dual N-Channel MOSFET Synchronous Drive; (5)Wide VIN Range: 3.7V to 36V; (6)Wide VOUT Range: 1.19V to VIN; (7)±1% 1.19V Reference; (8)Programmable Fixed Frequency with Injection Lock; (9)Very Low Drop Out Operation: 99% Duty Cycle; (10)Forced Continuous Mode Control Pin; (11)Optional Programmable Soft Start; (12)Pin Selectable Output Voltage; (13)Foldback Current Limit; (14)Output Overvoltage Protection; (15)Logic Controlled Micropower Shutdown: IQ < 30mA; (16)Available in 16-Lead Narrow SSOP and SO Packages.