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N1153

ETC
Part Number N1153
Manufacturer ETC
Description 5 Bit Programmable Synchronous
Published May 12, 2005
Detailed Description NIKO-SEM 5 Bit Programmable Synchronous DC/DC Controller FEATURES N1153 GENERAL DESCRIPTION The N1153 is a low-cost, ...
Datasheet PDF File N1153 PDF File

N1153
N1153

Overview
NIKO-SEM 5 Bit Programmable Synchronous DC/DC Controller FEATURES N1153 GENERAL DESCRIPTION The N1153 is a low-cost, 5 bit TTL-compatible input, digital-to-analog (DAC) programmable, synchronous buck converter controller designed specifically to power the Pentium ® II as well as the next generation of P6 family or other high performance core logic in desktop personal computer CPU applications.
Additional features also include temperature compensated voltage reference, triangle wave oscillator, current limits comparator, frequency shift over-current protection, and an accessible, internally compensated error amplifier, power good signal, logic compatible shutdown, and over voltage protection are also provide.
The N1153 operates at a fixed 200KHz, providing an optimum compromise between efficiency, external component size, and cost.
z High performance and low cost solution z Synchronous operation with high efficiency z TTL-compatible 5 bit DAC, output voltage selection from 1.
3V to 3.
5V programmable z High current totem pole output, up to 2 A for direct driving of the external N-Channel power MOSFETs.
z 200 KHz fixed frequency internal oscillator z Fast transient response z Power-Good output voltage monitor z Over-Voltage and Over-Current protection APPLICATIONS z Powering Pentium ® II, III or Deschutes, K6 and other advanced processor z Multiple microprocessor supplies z High power DC to DC controller z Programmable power supplies TYPICAL APPLICATION 12V 5V + VID 0 VID 1 VID 2 VID 3 VID 4 P.
G S.
D D/A AND SHUT-DOWN LOGIC CURRENT LIMIT COMPARATOR + TEMP.
COMPENSATED VOLTAGE REFERENCE FREQUENCY SHIFT OVER-CURRENT PROTECTION VCORE + TRIANGLE WAVE OSCILLATOR INTERNALLY COMPENSATED ERROR AMPLIFIER N1153, Motherboard Power Regulation for Computers 1 AUG-03-2001 NIKO-SEM 5 Bit Programmable Synchronous DC/DC Controller N1153 ABSOLUTE MAXIMUM RATINGS z VCC to GND, VIN z BST to GND z Thermal Resistance Junction to Case, θJC z Thermal Resistance Junction t...


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