- 您现在的位置：买卖IC网 > PDF目录5237 > LTC3738CUHF#PBF (Linear Technology)IC CTRLR SW REG 3PH STPDWN 38QFN PDF资料下载
参数资料
| 型号： | LTC3738CUHF#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/32页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR SW REG 3PH STPDWN 38QFN |
| 标准包装： | 52 |
| 应用： | 控制器，Intel VRM9、VRM10 |
| 输入电压： | 3.8 V ~ 36 V |
| 输出数： | 1 |
| 输出电压： | 0.84 V ~ 1.6 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 38-WFQFN 裸露焊盘 |
| 供应商设备封装： | 38-QFN（5x7） |
| 包装： | 管件 |
当前第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页
LTC3738
3-Phase Buck Controller
for Intel VRM9/VRM10 with
Active Voltage Positioning
FEATURES
DESCRIPTIO
■
■
■
■
■
■
■
■
■
■
■
■
■
■
3-Phase Controller with Onboard MOSFET Drivers
Programmable Active Voltage Positioning (AVP)
with True Current Sensing
Programmable External Thermal Detection or
Internal Thermal Sensing
Precise Output Current Matching Optimizes
Thermal Performance and Solution Size
Supports Starting into Precharged V OUTS
Differential Amplifier Accurately Senses V OUT
PWM, Pulse Skip and Stage Shedding TM Operation
Synchronizable
210kHz to 530kHz Per Phase, Fixed Frequency
Output Power Good Indicator with Adaptive Blanking
Adjustable Soft-Start Current Ramping
Short-Circuit Shutdown Timer with Defeat Option
OPTI-LOOP ? Compensation Minimizes C OUT
38-Lead (5mm × 7mm) QFN Package
The LTC ? 3738 is a 3-phase synchronous step-down switch-
ing regulator controller that drives all N-channel external
power MOSFET stages in a phase-lockable, fixed fre-
quency architecture. The 3-phase technique effectively
triples the fundamental frequency, improving transient
response while operating each controller at an optimal
frequency for efficiency and ease of thermal design. Light
load efficiency is optimized by using a choice of output
Stage Shedding or Pulse Skip mode technology.
The LTC3738 also allows users to program load slope via
a resistor for AVP control. Both external and internal
thermal sensing are available from the on-chip thermal
detector and comparator.
A differential amplifier provides sensing of both the high
and low sides of the output voltage.
Soft-start and a defeatable, timed short-circuit shutdown
APPLICATIO S
protect the MOSFETs and the load. A foldback current
circuit also provides protection for the external MOSFETs
■
■
High Performance Notebook Computers
Servers, Desktop Computers and Workstations
under short-circuit or overload conditions. An all- “1” VID
detector turns off the regulator after a 1 μ s timeout.
U.S. Patent Numbers: 5481178, 5994885, 5929620, 6177787, 6144194, 6580258, 6462525,
6593724, 6674274, 6100678 pending on AVP technique.
, LTC and LT are registered trademarks of Linear Technology Corporation.
OPTI-LOOP is a registered trademark of Linear Technology Corporation.
Stage Shedding is a trademark of Linear Technology Corporation.
TYPICAL APPLICATIO
VRM10 Step-Down Controller
V IN
5V
10 μ F
V CC
LTC3738
TG1
SW1
0.8 μ H
0.002 ?
+
22 μ F
× 2
5V TO 28V
BOOST1
BOOST2
BG1
0.1 μ F
BOOST3
SENSE1 +
SENSE1 –
SW3 SW2 SW1
POWER GOOD INDICATOR
MODE SELECTION/SYNC IN
PGOOD
FCB/SYNC
PLLFLTR
TG2
SW2
BG2
V IN
0.8 μ H
0.002 ?
V OUT
0.8375V TO 1.6000V
THERMAL INPUT
VR HOT INDICATOR
ON/OFF
680pF
TSNS
VR_HOTB
OUTEN
PGND
SENSE2 +
SENSE2 –
5k
0.1 μ F
I TH
SS
SGND
TG3
SW3
BG3
V IN
0.8 μ H
0.002 ?
EAIN
100pF
AVP
IN +
IN –
SENSE3 +
SENSE3 –
VID0-VID5
6 VID BITS
+
470 μ F
× 4
3738 TA01
3738f
1
相关PDF资料 |
PDF描述 |
|---|---|
| LTC3738CUHF | IC CTRLR SW REG 3PH STPDWN 38QFN |
| MIC5225-1.8YM5 TR | IC REG LDO 1.8V .15A SOT23-5 |
| GEM36DTMT-S273 | CONN EDGECARD 72POS R/A .156 SLD |
| GCM40DTMT | CONN EDGECARD 80POS R/A .156 SLD |
| GBC65DRAI | CONN EDGECARD 130PS R/A .100 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC-3743KG | 制造商:Lite-On Semiconductor Corporation 功能描述: |
| LTC3765EMSE#PBF | 功能描述:IC CTLR GATE DRIVER 16-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:Direct Flux Limit™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR) |
| LTC3765EMSE#TRPBF | 功能描述:IC CONTROLLER GATE DR 16MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:Direct Flux Limit™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR) |
| LTC3765HMSE#PBF | 功能描述:IC CONTROLLER GATE DR 16MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:Direct Flux Limit™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR) |
| LTC3765HMSE#TRPBF | 功能描述:IC CONTROLLER GATE DR 16MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:Direct Flux Limit™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。