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參數資料
| 型號： | L5996 |
| 廠商： | 意法半導體 |
| 英文描述： | 5 BIT DYNAMIC DAC CONTROLLER FOR MOBILE CPU |
| 中文描述： | 5位動態援控制器的移動CPU |
| 文件頁數： | 1/9頁 |
| 文件大小： | 77K |
| 代理商： | L5996 |
DYNAMICDAC DETECTION ON CHIP
PROGRAMMABLE OUTPUT FROM 0.925V
TO 2.0V WITH 0.05V AND 0.025V BINARY
STEPS
ULTRA HIGH EFFICIENCY
SEPARATE 5V BIAS SUPPLY AVAILABLE
FOR HIGH EFFICIENCY PERFORMANCE
EXCELLENT
OUTPUT
OVER LINE, LOAD AND TEMPERATURE
VARIATIONS
HIGH PRECISION INTERNAL REFERENCE
DIGITALLY TRIMMED
OPERATING SUPPLY
4.75V TO 25V
VERYFAST LOAD TRANSIENT
REMOTE SENSINGINPUTS
INTERNAL
LINEAR
/150mA,
±
2% PRECISION
POWER MANAGEMENT
- PROGRAMMABLEPOWER-UP TIME
- POWER GOODOUTPUT, SKIP MODE
- OUTPUT OVERVOLTAGEPROTECTION
- OUTPUT UNDERVOLTAGELOCKOUT
OPERATINGFREQUENCY UP TO 1MHz
MEETS INTELMOBILE PENTIU
III
ACCURACY
±
1%
VOLTAGE FROM
REGULATOR
2.5V
Application
ADVANCED MICROPROCESSOR SUPPLIES
POWERSUPPLYFORPENTIUM
III INTEL MO-
BILE
DESCRIPTION
The L5996 is a power supply controller that offers
a complete power management for
CPUs of the next generationespecially for mobile
Pentium III. A high precise 5 bit digital to analog
converter (DAC) allows to adjust the output volt-
age from 0.925V to 2.0V. Dynamic DAC code
changes are detected on chip in order to switch
the output voltage between 1.3V and 1.45V in
less tahn 100
μ
s.The high precision internal refer-
notebook
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
July 1999
FREQ
SETTING
SYNC
POWER
MANAGEMENT
&
SYSTEM
SUPERVISOR
4.75V
to
25V
V
O
POWER
SECTION
L5996
POWER GOOD
PWM SECTIONS
DAC
NOSKIP
ENABLE
CPU CORE
2.5V LIN. REG.
3.3V
2.5V
CPU CLK
D0
D1
D2
D3
0.925V to 2.0V
Pentium
III
Mobile
D98IN997A
D4
TYPICALAPPLICATION CIRCUIT
TQFP32
(7mm x 7mm)
L5996
5 BIT DYNAMIC DAC CONTROLLER FOR MOBILE CPU
PRELIMINARY DATA
1/9
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