SC1159SW.TR

synchronous-buck switch-mode controller, 14 V, 6.25 W, 1A, SOP

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Price:: US $1.00~1.50 / piece [Get Latest Price]

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PartNumber:: SC1159SW.TR

Brand:: Semtech Corporation - Semtech | Pack: SOP | D/C: 09+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
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Products Upload time: 2012-08-25

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Part Number:SC1159SW.TR
US $1.00 - 1.50
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Product Summary

The SC1159SW.TR is a synchronous-buck switch-mode controller designed for use in single ended power supply applications where efficiency is the primary concern. The controller is a hysteretic type, with a user selectable hysteresis. The SC1159SW.TR is ideal for implementing DC/DC converters needed to power advanced microprocessors such as Pentium llI and Athlon, in both single and multiple processor configurations. Inhibit, under-voltage lockout and soft-start functions are included for controlled power-up. The SC1159SW.TR features include an integrated 5 bit D/A converter, temperature compensated voltage reference, current limit comparator, over-current protection, and an adaptive deadtime circuit to prevent shoot-through of the power MOSFET during switching transitions. Power good signaling, logic compatible shutdown, and over-voltage protection are also provided. The integrated D/A converter provides programmability of output voltage from 1.050V to 1.825V in 25mV increments.

Parametrics

SC1159SW.TR absolute maximum ratings: (1)VIN12V VIN MAX: -0.3 to 14 V; (2)BOOT to DRVGND: -0.3 to 25 V; (3)BOOT to BOOTLO: -0.3 to 15 V; (4)Digital Inputs: -0.3 to 7.3 V; (5)AGND to DRVGND: ±0.5 V; (6)LOHIB to AGND: -0.3 to 14 V; (7)LOSENSE to AGND: -0.3 to 14 V; (8)IOTLO to AGND: -0.3 to 14 V; (9)HISENSE to AGND: -0.3 to 14 V; (10)VSENSE to AGND: -0.3 to 5 V; (11)Continuous Power Dissipation, TA = 25℃ PD: 1.2 W; (12)Continuous Power Dissipation, TC = 25 ℃ PD: 6.25 W; (13)Operating Junction Temperature Range TJ: 0 to +125 ℃; (14)Lead Temperature (Soldering)10 Sec. TL: 300 ℃; (15)Storage Temperature T STG: -65 to 150 ℃.

Features

SC1159SW.TR features: (1)Internal Short Circuit Current Limiting; (2)Maximum Output Current (1A Max.); (3)Thermal Overload Protection; (4)Output Transistor Safe Area Protection.