参数资料
型号: LTC3728LIUH-1
厂商: LINEAR TECHNOLOGY CORP
元件分类: 稳压器
英文描述: 3 A DUAL SWITCHING CONTROLLER, 590 kHz SWITCHING FREQ-MAX, PQCC32
封装: 5 X 5 MM, PLASTIC, MO-220WHHD, QFN-32
文件页数: 26/32页
文件大小: 475K
代理商: LTC3728LIUH-1
LTC3728L-1
32
3728l1fc
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
LINEAR TECHNOLOGY CORPORATION 2005
LT 0708 REV C PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
Figure 14. Multioutput PolyPhase Application
PHASMD
CLKOUT
TG1
TG2
I1
I3
I2
I4
90°
OPEN
180°
U1
LTC3729
BUCK: 2.5V/15A
PLLIN
TG1
TG2
90°
270°
U2
LTC3728L-1
BUCK: 1.5V/15A
2.5VO/30A
CIN
IIN
12VIN
*INPUT RIPPLE CURRENT CANCELLATION
INCREASES THE RIPPLE FREQUENCY AND
REDUCES THE RMS INPUT RIPPLE CURRENT
THUS, SAVING INPUT CAPACITORS
IIN*
1.5VO/15A
1.8VO/15A
3728L1 F14
BUCK: 1.8V/15A
I1
I2
I3
I4
PART NUMBER
DESCRIPTION
COMMENTS
LTC1628/LTC1628-PG/
LTC1628-SYNC
2-Phase, Dual Output Synchronous Step-Down
DC/DC Controller
Reduces CIN and COUT, Power Good Output Signal, Synchronizable,
3.5V ≤ VIN ≤ 36V, IOUT up to 20A, 0.8V ≤ VOUT ≤ 5V
LTC1629/
LTC1629-PG
20A to 200A PolyPhase Synchronous Controllers
Expandable from 2-Phase to 12-Phase, Uses All
Surface Mount Components, No Heat Sink, VIN up to 36V
LTC1708-PG
2-Phase, Dual Synchronous Controller with Mobile VID
3.5V ≤ VIN ≤ 36V, VID Sets VOUT1, PGOOD
LT1709/
LT1709-8
High Efciency, 2-Phase Synchronous Step-Down
Switching Regulators with 5-Bit VID
1.3V ≤ VOUT ≤ 3.5V, Current Mode Ensures
Accurate Current Sharing, 3.5V ≤ VIN ≤ 36V
LTC1735
High Efciency Synchronous Step-Down
Switching Regulator
Output Fault Protection, 16-Pin SSOP
LTC1736
High Efciency Synchronous Controller with 5-Bit Mobile
VID Control
Output Fault Protection, 24-Pin SSOP,
3.5V ≤ VIN ≤ 36V
LTC1778/LTC1778-1
No RSENSE Current Mode Synchronous Step-Down
Controllers
Up to 97% Efciency, 4V ≤ VIN ≤ 36V, 0.8V ≤ VOUT ≤ (0.9)(VIN),
IOUT up to 20A
LTC1929/
LTC1929-PG
2-Phase Synchronous Controllers
Up to 42A, Uses All Surface Mount Components,
No Heat Sinks, 3.5V ≤ VIN ≤ 36V
LTC3708
Dual, 2-Phase, DC/DC Controller with Output Tracking
Current Mode, No RSENSE, Up/Down Tracking, Synchronizable
LTC3711
No RSENSE Current Mode Synchronous Step-Down
Controller with Digital 5-Bit Interface
Up to 97% Efciency, Ideal for Pentium
III Processors,
0.925V ≤ VOUT ≤ 2V, 4V ≤ VIN ≤ 36V, IOUT up to 20A
LTC3728
Dual, 550kHz, 2-Phase Synchronous Step-Down
Controller
Dual 180° Phased Controllers, VIN 3.5V to 35V, 99% Duty Cycle,
5x5QFN, SSOP-28
LTC3729
20A to 200A, 550kHz PolyPhase Synchronous Controller
Expandable from 2-Phase to 12-Phase, Uses all Surface Mount
Components, VIN up to 36V
LTC3731
3- to 12-Phase Step-Down Synchronous Controller
60A to 240A Output Current, 0.6V ≤ VOUT ≤ 6V, 4.5V ≤ VIN ≤ 32V
LTC3802
No RSENSE 2-Phase Dual Synchronous Step-Down
Controller
330kHz to 750kHz, No Sense Resistor, Output Voltage Tracking,
Synchronizable for 4-Phase Operation
No RSENSE and PolyPhase are trademarks of Linear Technology Corporation.
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相关代理商/技术参数
参数描述
LTC3728LIUH-1#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® 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 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:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX
LTC3728LIUH-1#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:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 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:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX
LTC3728LXCUH 功能描述:IC REG CTRLR BUCK PWM CM 32-QFN RoHS:否 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:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 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:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX
LTC3728LXCUH#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® 标准包装:2,000 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:1MHz 占空比:50% 电源电压:9 V ~ 10 V 降压:无 升压:是 回扫:是 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:8-TSSOP(0.173",4.40mm 宽) 包装:带卷 (TR)
LTC3728LXCUH#TR 功能描述:IC REG CTRLR BUCK PWM CM 32-QFN RoHS:否 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:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 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:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX