参数资料
型号: LTC3869EUFD#PBF
厂商: Linear Technology
文件页数: 2/42页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 28-QFN
标准包装: 73
系列: PolyPhase®
PWM 型: 电流模式
输出数: 2
频率 - 最大: 850kHz
占空比: 95%
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 ~ 125°C
封装/外壳: 28-WFQFN 裸露焊盘
包装: 管件

LTC3869/LTC3869-2
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Supply Voltage: V IN ........................... 40V to –0.3V
Top Side Driver Voltages:
BOOST1, BOOST2 ...................................... 46V to –0.3V
Switch Voltage: SW1, SW2 ........................... 40V to –5V
INTV CC , RUN1, RUN2, PGOOD, EXTV CC ,
BOOST1-SW1, BOOST2-SW2....................... 6V to –0.3V
SENSE1 + , SENSE2 + , SENSE1 – ,
SENSE2 – Voltages ......................................13V to –0.3V
MODE/PLLIN, I LIM , TK/SS1, TK/SS2,
FREQ Voltages ...................................... INTV CC to –0.3V
PIN CONFIGURATION
TOP VIEW
I TH1 , I TH2 , V FB1 , V FB2 Voltages ............. INTV CC to –0.3V
INTV CC Peak Output Current ................................100mA
Operating Junction Temperature Range
(Note 2).................................................. –40°C to 125°C
Junction Temperature (Note 3) ............................. 125°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
GN Package ...................................................... 300°C
TOP VIEW
RUN1
SENSE1 +
1
2
28 FREQ
27 MODE/PLLIN
SENSE1 – 1
TK/SS1 2
I TH1 3
V FB1 4
V FB2 5
I TH2 6
28 27 26 25 24 23
SGND
29
22 BOOST1
21 BG1
20 V IN
19 INTV CC
18 BG2
17 PGND
SENSE1 –
V FB1
TK/SS1
I TH1
SGND
I TH2
TK/SS2
3
4
5
6
7
8
9
26 SW1
25 TG1
24 BOOST1
23 BG1
22 V IN
21 INTV CC
20 BG2
TK/SS2 7
SENSE2 – 8
16 BOOST2
15 TG2
V FB2 10
SENSE2 – 11
19 PGND
18 BOOST2
9 10 11 12 13 14
SENSE2
+
12
17 TG2
RUN2 13
EXTV CC 14
16 SW2
15 PGOOD
UFD PACKAGE
28-LEAD (4mm × 5mm) PLASTIC QFN
T JMAX = 125°C, θ JA = 34°C/W,
EXPOSED PAD (PIN 29) IS SGND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
GN PACKAGE
28-LEAD PLASTIC SSOP
T JMAX = 125°C, θ JA = 80°C/W
LEAD FREE FINISH
LTC3869EUFD#PBF
LTC3869IUFD#PBF
LTC3869IGN-2#PBF
TAPE AND REEL
LTC3869EUFD#TRPBF
LTC3869IUFD#TRPBF
LTC3869IGN-2#TRPBF
PART MARKING*
3869
3869
LTC3869GN-2
PACKAGE DESCRIPTION
28-Lead (4mm × 5mm) Plastic QFN
28-Lead (4mm × 5mm) Plastic QFN
28-Lead Narrow Plastic SSOP
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on nonstandard lead based finish parts.
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/
38692fa
2
For more information www.linear.com/LTC3869
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LTC3869IGN-2#PBF 功能描述:IC REG CTRLR BUCK PWM CM 28-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:PolyPhase® 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR)
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