参数资料
型号: LT3825EFE#TRPBF
厂商: Linear Technology
文件页数: 2/32页
文件大小: 0K
描述: IC REG CTRLR FLYBK ISO 16-TSSOP
标准包装: 2,500
PWM 型: 电流模式
输出数: 1
频率 - 最大: 250kHz
占空比: 88%
电源电压: 11 V ~ 18 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 16-TSSOP(0.173",4.40mm)裸露焊盘
包装: 带卷 (TR)
LT3825
17
12 SENSE +
5
SYNC
ABSOLUTEMAXIMUMRATINGS
(Note 1)
V CC to GND
Low Impedance Source ........................ –0.3V to 18V
Current Fed
(V CC Has Internal 19.5V Clamp) ...........30mA Into V CC
UVLO, SYNC Pin Voltage ........................... –0.3V to V CC
SENSE – , SENSE + Pin Voltage ......................–0.5V, +0.5V
FB Pin Current........................................................±2mA
V C Pin Current ....................................................... ±1mA
Operating Junction Temperature Range
(Notes 2, 3, 4) ........................................ –40°C to 125°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................... 300°C
ORDER INFORMATION
PIN CONFIGURATION
TOP VIEW
SG 1 16 PG
V CC 2 15 PGDLY
t ON 3 14 R CMP
ENDLY 4 13 C CMP
GND
SFST 6 11 SENSE –
OSC 7 10 UVLO
FB 8 9 V C
FE PACKAGE
16-LEAD PLASTIC TSSOP
T JMAX = 125°C, θ JA = 40°C/W, θ JC = 10°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
LEAD FREE FINISH
LT3825EFE#PBF
LEAD BASED FINISH
LT3825EFE
TAPE AND REEL
LT3825EFE#TRPBF
TAPE AND REEL
LT3825EFE#TR
PART MARKING
3825EFE
PART MARKING
3825EFE
PACKAGE DESCRIPTION
16-Lead Plastic 4.4mm TSSOP
PACKAGE DESCRIPTION
16-Lead Plastic 4.4mm TSSOP
TEMPERATURE RANGE
–40°C to 125°C
TEMPERATURE RANGE
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at T A = 25°C. V CC = 14V; PG, SG Open; V C = 1.5V, V SENSE– = 0V; R CMP = 1k,
R tON = 90k, R PGDLY = 27.4k, R ENDLY = 90k, unle ss otherwise specified (Note 3).
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Power Supply
V CC Turn-On Voltage
V CC Turn-Off Voltage
l
l
14.0
8
15.3
9.7
16.0
11
V
V
V CC Hysteresis
V CC Shunt Clamp
V CC Supply Current (Note 5) (I CC )
V CC Start-Up Current
V CC(ON) – V CC(OFF)
V UVLO = 0V, I VCC = 15mA
V C = Open
V CC = 10V
l
l
l
l
4.0
19.5
4
5.6
20.5
6.4
180
6.5
10
400
V
V
mA
μA
Feedback Amplifier
Feedback Regulation Voltage (V FB )
Feedback Pin Input Bias Current
R CMP Open
l
1.220
1.237
200
1.251
V
nA
Feedback Amplifier Transconductance
Feedback Amplifier Source or Sink Current
? I C = ±10μA
l
l
700
25
1000
55
1400
90
μmho
μA
Feedback Amplifier Clamp Voltage
V FB = 0.9V
V FB = 1.4V
2.56
V
3525fe
2
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LT3837EFE#PBF 功能描述:IC REG CTRLR FLYBK ISO 16-TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 特色产品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 标准包装:1 系列:PowerWise® PWM 型:电压模式 输出数:1 频率 - 最大:1MHz 占空比:81% 电源电压:4.5 V ~ 18 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-5°C ~ 125°C 封装/外壳:32-WFQFN 裸露焊盘 包装:Digi-Reel® 产品目录页面:1303 (CN2011-ZH PDF) 其它名称:LM3754SQDKR