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L4955V-5.1 PDF预览

L4955V-5.1

更新时间: 2024-11-14 14:51:59
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 局域网信息通信管理输出元件调节器
页数 文件大小 规格书
14页 142K
描述
5.1V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, PSFM3, VERSAWATT-3

L4955V-5.1 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:SFM包装说明:VERSAWATT-3
针数:3Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.91可调性:FIXED
最大回动电压 1:1.5 V标称回动电压 1:1.5 V
最大绝对输入电压:24 V最大输入电压:22 V
最小输入电压:5.5 VJESD-30 代码:R-PSFM-T3
JESD-609代码:e0最大电网调整率:0.01%
最大负载调整率:0.02%功能数量:1
输出次数:1端子数量:3
工作温度TJ-Max:125 °C工作温度TJ-Min:
最大输出电流 1:5 A最大输出电压 1:5.25 V
最小输出电压 1:4.95 V标称输出电压 1:5.1 V
封装主体材料:PLASTIC/EPOXY封装等效代码:SIP3,.1TB
封装形状:RECTANGULAR封装形式:FLANGE MOUNT
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
调节器类型:FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR子类别:Other Regulators
表面贴装:NO技术:BICMOS
端子面层:Tin/Lead (Sn/Pb)端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:SINGLE
处于峰值回流温度下的最长时间:NOT SPECIFIED最大电压容差:3%
Base Number Matches:1

L4955V-5.1 数据手册

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L4955  
5A ULDO LINEAR REGULATORS FAMILY  
UP TO 5A OUTPUT CURRENT  
2% PRECISE OUTPUT VOLTAGES  
MULTIPOWER BCD TECHNOLOGY  
±
FAST TRANSIENT RESPONSE  
0.75V TYP. DROP OUT VOLTAGEAT 5A  
OPERATING INPUT VOLTAGEFROM 4.5V  
ADJUSTABLE VERSION:  
VO = 1.26V  
INHIBIT (IQ = 120µA TYP.)  
HEPTAWATT  
VERSAWATT  
(TO-220)  
POWER GOOD  
PROGRAMMABLECURRENT LIMIT  
OUTPUT  
VOLTAGE  
HEPTAWATT PACKAGE  
FIXED VERSION:  
ORDERING  
NUMBERS  
PACKAGE  
3.3V, 5.1V OUTPUTS  
L4955  
1.26V ADJ  
3.3V  
HEPTAWATT  
VERSAWATT  
VERSAWATT  
VERSAWATT PACKAGE  
L4955V3.3  
L4955V5.1  
VERYLOW QUIESCENT CURRENT  
SHORT CIRCUIT PROTECTION (Foldback  
function)  
5.1V  
The dropout voltage is only 0.75V (Typ.) at 5A, di-  
rectly dependenton the output current conditions.  
THERMAL SHUTDOWN  
Realized in BCDII technology, it has on board a  
charge pump to properly drive an N-channel  
APPLICATIONS  
PENTIUM AND POWER PC SUPPLIES  
power mos Transistor with 150m of R  
.
DSON  
POSTREGULATOR FOR SMPS  
LOW COST SOLUTION FOR 5V TO 3.3V  
CONVERSION  
It operates from a 4.5V minimum supply, with a  
very low quiescent current irrespective of the  
load; a minimum of 22µF output capacitor is re-  
quired for stability.  
LOW COST BATTERY CHARGER  
CONSTANT CURRENT REGULATOR  
The on-chip trimming techniques improve the pre-  
SUITABLE  
FOR  
APPLICATION WITH  
cision of the available output voltages to 2%.  
±
STANDBY FEATURE  
Ancillary functions like power good, inhibit with  
low power consumption, programmable output  
voltage and current limiting make the flexible  
heptawatt version usable in applications where  
power management, stand-by, features, post  
regulation and adjustable current generators for  
battery chargers are important.  
DESCRIPTION  
The L4955 is a family of monolithic ultra very low  
drop linear regulators designed to supply the  
most recent microprocessors.  
TYPICAL APPLICATIONS  
INH  
3
PG  
6
IN  
OUT  
ADJ  
IN  
OUT  
VIN  
1
7
5
VOUT  
VIN  
1
3
VOUT  
L4955  
R1  
L4955VXXX  
2
4
C1  
C2  
2
C1  
C2  
CL  
GND  
R2  
GND  
D97IN590  
D97IN589  
1/14  
February 1999  

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