参数资料
型号: LTC3851EUD-1#PBF
厂商: Linear Technology
文件页数: 2/28页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 16-QFN
特色产品: Wide Input Voltage Range Synchronous Step-Down DC/DC Controller
标准包装: 121
PWM 型: 电流模式
输出数: 1
频率 - 最大: 790kHz
占空比: 99%
电源电压: 4 V ~ 38 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 16-WFQFN 裸露焊盘
包装: 管件
LTC3851-1
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Supply Voltage (V IN ) ......................... 40V to –0.3V
Topside Driver Voltage (BOOST) ................ 46V to –0.3V
Switch Voltage (SW) ..................................... 40V to –5V
INTV CC , (BOOST – SW), RUN, PGOOD ........ 6V to –0.3V
TK/SS .................................................... INTV CC to –0.3V
SENSE + , SENSE – .......................................... 6V to –0.3V
MODE/PLLIN, FREQ/PLLFLTR ............... INTV CC to –0.3V
I TH , V FB Voltages .......................................... 3V to –0.3V
INTV CC Peak Output Current ..................................50mA
Operating Junction Temperature Range
(Notes 2, 3) ............................................ –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
MSE .................................................................. 300°C
PIN CONFIGURATION
TOP VIEW
TOP VIEW
MODE/PLLIN
FREQ/PLLFLTR
1
2
16
15
SW
TG
16 15 14 13
RUN
TK/SS
I TH
FB
SENSE –
SENSE +
3
4
5
6
7
8
17
14
13
12
11
10
9
BOOST
V IN
INTV CC
BG
GND
PGOOD
RUN 1
TK/SS 2
I TH 3
FB 4
17
12 BOOST
11 V IN
10 INTV CC
9 BG
MSE PACKAGE
5
6
7
8
16-LEAD PLASTIC MSOP
T JMAX = 125°C, θ JA = 35°C/W TO 40°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
UD PACKAGE
16-LEAD (3mm
3mm) PLASTIC QFN
T JMAX = 125°C, θ JA = 68°C/W, θ JC = 4.2°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LTC3851EMSE-1#PBF
LTC3851IMSE-1#PBF
LTC3851EUD-1#PBF
LTC3851IUD-1#PBF
TAPE AND REEL
LTC3851EMSE-1#TRPBF
LTC3851IMSE-1#TRPBF
LTC3851EUD-1#TRPBF
LTC3851IUD-1#TRPBF
PART MARKING*
38511
38511
LDNT
LDNT
PACKAGE DESCRIPTION
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead (3mm × 3mm) Plastic QFN
16-Lead (3mm × 3mm) Plastic QFN
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 125°C
–40°C to 85°C
–40°C to 125°C
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges. *The temperature grade is identi?ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based ?nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel speci?cations, go to: http://www.linear.com/tapeandreel/
38511fa
2
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