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参数资料
| 型号： | L6996D |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封装： | MO-153AD, TSSOP-24 |
| 文件页数： | 1/26页 |
| 文件大小： | 272K |
| 代理商： | L6996D |
1/26
L6996
July 2002
s
5 BIT DAC WITH AVAILABLE EXTERNAL
OUTPUT VOLTAGE.
s
0.6 TO 1.750V, DYNAMICALLY ADJUSTABLE
OUTPUT VOLTAGE RANGE.
s
±1% OUTPUT ACCURACY OVER LINE AND LOAD.
s
ACTIVE DROOP.
s
CONSTANT ON TIME TOPOLOGY ALLOWS
LOW DUTY CYCLE AND FAST LOAD
TRANSIENT.
s
90% EFFICIENCY FROM 12V TO 1.35V/8A.
s
1.750V TO 28V BATTERY INPUT RANGE.
s
OPERATING FREQUENCY UP TO 1MHZ.
s
INTEGRATED HIGH CURRENT DRIVERS.
s
LATCHED OVP AND UVP PROTECTIONS.
OCP PROTECTION.
s
350
A TYP. QUIESCENT CURRENT.
s
7
A TYP. SHUTDOWN SUPPLY CURRENT.
s
PGOOD AND OVP SIGNALS.
s
ZERO-CURRENT DETECTION AND PULSE-
FREQUENCY MODE.
APPLICATIONS
s
ADVANCED MOBILE CPUs SUPPLY WITH
DYNAMIC TRANSITIONS.
s
NOTEBOOK/LAPTOP, CONCEPT PC CPUs
SUPPLY.
s
DC/DC FROM BATTERY SUPPLY EQUIPMEN TS.
DESCRIPTION
The device is dc-dc controller specifically designed to
provide extremely high efficiency conversion for mo-
bile advanced microprocessors.
The ”constant on-time” topology assures fast load
transient response. The embedded ”voltage feedfor-
ward” provides nearly constant switching frequency
operation.
A precise 5-bit DAC allows select output voltage from
0.6V to 1V with 25mV steps and from 1V to 1.75V
with 50mV steps.
L6996 is capable of supporting CPUs VID combina-
tion changing during normal operation.
The active droop allows adjust both the output load-
line slope and the zero-load output voltage.
TSSOP24
ORDERING NUMBERS: L6996D (TSSOP24)
L6996DTR (Tape & Reel)
DINAMICALLY PROGRAMMABLE SYNCHRONOUS
STEP DOWN CONTROLLER FOR MOBILE CPUs
APPLICATION DIAGRAM
SENSE
R
VPROG
C
SS
C
SHDN
1.25V
VCC
VDR
5V
25V
PGOOD
OVP
5V
VPROG
VFB+
VFB-
VID4:0
L
V
OUT
HS
LS
DS
L6996
CS-
PGND
LGATE
CS+
GND
PHASE
HGATE
ILIM
BOOT
OSC
SS
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L6996DTR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:DINAMICALLY PROGRAMMABLE SYNCHRONOUS STEP DOWN CONTROLLER FOR MOBILE CPUs |
| L6997 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:STEP DOWN CONTROLLER FOR LOW VOLTAGE OPERATIONS |
| L6997-28 | 制造商:Johanson Manufacturing 功能描述:TUNING ELEMENT |
| L6997-5 | 制造商:Johanson Manufacturing 功能描述:TUNING ELEMENT; Accessory Type:Tuning Element; For Use With:High Quality Variable Reactance Tuning Microwave Cavities, Filters & other Resonant Structures |
| L6997-9 | 制造商:Johanson Manufacturing 功能描述:TUNING ELEMENT |
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