參數(shù)資料
型號(hào): N1153
廠商: Electronic Theatre Controls, Inc.
英文描述: 5 Bit Programmable Synchronous
中文描述: 5位可編程同步
文件頁(yè)數(shù): 1/6頁(yè)
文件大?。?/td> 58K
代理商: N1153
GENERAL DESCRIPTION
1
5 Bit Programmable Synchronous
DC/DC Controller
NIKO-SEM
N1153
AUG-03-2001
The N1153 is a low-cost, 5 bit TTL-compatible
input, digital-to-analog (DAC) programmable,
synchronous buck converter controller design-
ed specifically to power the Pentium
II as well
as the next generation of P6 family or other
high performance core logic in desktop person-
al computer CPU applications.
Additional features also include temperature
compensated voltage reference, triangle wave
oscillator, current limits comparator, frequency
shift over-current protection, and an access-
ible, internally compensated error amplifier,
power good signal, logic compatible shutdown,
and over voltage protection are also provide.
The N1153 operates at a fixed 200KHz, provid-
ing an optimum compromise between efficien-
cy, external component size, and cost.
FEATURES
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
5V
12V
+
+
+
VID 0
VID 4
VID 1
VID 2
VID 3
P.G
S.D
VCORE
D/A AND
SHUT-DOWN
LOGIC
TEMP. COMPENSATED
VOLTAGE REFERENCE
TRIANGLE
WAVE
OSCILLATOR
CURRENT
LIMIT
COMPARATOR
FREQUENCY SHIFT
OVER-CURRENT
PROTECTION
INTERNALLY
COMPENSATED
ERROR AMPLIFIER
N1153, Motherboard Power Regulation for Computers
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