参数资料
型号: LTC3868EUFD-1#PBF
厂商: Linear Technology
文件页数: 2/38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: 99.4%
电源电压: 4 V ~ 24 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: 28-WFQFN 裸露焊盘
包装: 管件
产品目录页面: 1336 (CN2011-ZH PDF)
LTC3868-1
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (V IN ) ......................... –0.3V to 28V
Topside Driver Voltages
BOOST1, BOOST2 ................................. –0.3V to 34V
Switch Voltage (SW1, SW2) ........................ –5V to 28V
PLLIN/MODE,
(BOOST1-SW1), (BOOST2-SW2) ................ –0.3V to 6V
RUN1, RUN2 ............................................... –0.3V to 8V
Maximum Current Sourced into Pin from
Source >8V ......................................................100μA
SENSE1 + , SENSE2 + , SENSE1 –
SENSE2 – Voltages...................................... –0.3V to 16V
PIN CONFIGURATION
TOP VIEW
FREQ Voltages ..................................... –0.3V to INTV CC
EXTV CC ...................................................... –0.3V to 14V
I TH1 , I TH2 , V FB1 , V FB2 Voltages ..................... –0.3V to 6V
PGOOD1 Voltage ......................................... –0.3V to 6V
SS1, SS2, INTV CC Voltages ......................... –0.3V to 6V
Operating Temperature Range (Note 2).... –40°C to 85°C
Junction Temperature (Note 3) ............................. 125°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
SSOP ................................................................ 300°C
TOP VIEW
I TH1
V FB1
1
2
28 SS1
27 PGOOD1
28 27 26 25 24 23
SENSE1 +
3
26 TG1
SENSE1 + 1
SENSE1 – 2
FREQ 3
22 BOOST1
21 BG1
20 V IN
SENSE1 –
FREQ
PLLIN/MODE
4
5
6
25 SW1
24 BOOST1
23 BG1
PLLIN/MODE 4
SGND 5
29
SGND
19 PGND
18 EXTV CC
SGND
RUN1
7
8
22 V IN
21 PGND
RUN1 6
RUN2 7
SENSE2 – 8
9 10 11 12 13 14
17 INTV CC
16 BG2
15 BOOST2
RUN2 9
SENSE2 – 10
SENSE2 + 11
20 EXTV CC
19 INTV CC
18 BG2
V FB2 12
I TH2 13
17 BOOST2
16 SW2
UFD PACKAGE
SS2 14
15 TG2
28-LEAD (4mm
5mm) PLASTIC QFN
GN PACKAGE
T JMAX = 125°C, θ JA = 43°C/W
EXPOSED PAD (PIN 29) IS SGND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
28-LEAD PLASTIC SSOP
T JMAX = 125°C, θ JA = 90°C/W
LEAD FREE FINISH
LTC3868EUFD-1#PBF
LTC3868IUFD-1#PBF
LTC3868EGN-1#PBF
LTC3868IGN-1#PBF
TAPE AND REEL
LTC3868EUFD-1#TRPBF
LTC3868IUFD-1#TRPBF
LTC3868EGN-1#TRPBF
LTC3868IGN-1#TRPBF
PART MARKING*
38681
38681
LTC3868GN-1
LTC3868GN-1
PACKAGE DESCRIPTION
28-Lead (4mm × 5mm) Plastic QFN
28-Lead (4mm × 5mm) Plastic QFN
28-Lead Plastic SSOP
28-Lead Plastic SSOP
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
–40°C to 85°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/
38681fd
2
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LTC3868EUH#PBF 功能描述:IC REG CTRLR BUCK PWM CM 32-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:PolyPhase® 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
LTC3868EUH#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM 32-QFN 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)
LTC3868IGN-1#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)
LTC3868IGN-1#TRPBF 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)
LTC3868IUFD-1#PBF 功能描述:IC REG CTRLR BUCK PWM CM 28-QFN 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)