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| 型号： | LTM4601AIY#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 10/30页 |
| 文件大小： | 0K |
| 描述： | IC DC/DC UMODULE 12A 133-BGA |
| 标准包装： | 119 |
| 系列： | µModule® |
| 类型： | 非隔离（POL） |
| 输出数： | 1 |
| 电压 - 输入（最小）： | 4.5V |
| 电压 - 输入（最大）： | 20V |
| Voltage - Output 1： | 0.6 ~ 5 V |
| 电流 - 输出（最大）： | 12A |
| 特点： | 带有 UVLO |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 133-BGA |
| 尺寸/尺寸： | 0.59" L x 0.59" W x 0.13" H（15.0mm x 15.0mm x 3.4mm） |
| 包装： | 托盘 |
| 工作温度： | -40°C ~ 85°C |
| 效率： | 95% |
| 配用： | DC1041A-A-ND - BOARD EVAL LTM4601 |
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LTM4601/LTM4601-1
OPERATION
Power Module Description
The LTM4601 is a standalone nonisolated switching mode
DC/DC power supply. It can deliver up to 12A of DC output
current with some external input and output capacitors.
This module provides a precisely regulated output voltage
programmable via one external resistor from 0.6V DC to
5.0V DC over a 4.5V to 20V wide input voltage. The typical
application schematic is shown in Figure 18.
The LTM4601 has an integrated constant on-time current
mode regulator, ultralow R DS(ON) FETs with fast switch-
ing speed and integrated Schottky diodes. The typical
switching frequency is 850kHz at full load. With current
mode control and internal feedback loop compensation,
the LTM4601 module has sufficient stability margins and
good transient performance under a wide range of operat-
ing conditions and with a wide range of output capacitors,
even all ceramic output capacitors.
Current mode control provides cycle-by-cycle fast current
limit. Besides, foldback current limiting is provided in an
overcurrent condition while V FB drops. Internal overvolt-
age and undervoltage comparators pull the open-drain
PGOOD output low if the output feedback voltage exits a
±10% window around the regulation point. Furthermore,
in an overvoltage condition, internal top FET Q1 is turned
off and bottom FET Q2 is turned on and held on until the
overvoltage condition clears.
Pulling the RUN pin below 1V forces the controller into its
shutdown state, turning off both Q1 and Q2. At low load
current, the module works in continuous current mode by
default to achieve minimum output ripple voltage.
When DRV CC pin is connected to INTV CC an integrated
5V linear regulator powers the internal gate drivers. If a
5V external bias supply is applied on the DRV CC pin, then
an efficiency improvement will occur due to the reduced
power loss in the internal linear regulator. This is especially
true at the high end of the input voltage range.
The LTM4601 has a very accurate differential remote
sense amplifier with very low offset. This provides for
very accurate output voltage sensing at the load. The
MPGM pin, MARG0 pin and MARG1 pin are used to sup-
port voltage margining, where the percentage of margin
is programmed by the MPGM pin, and the MARG0 and
MARG1 select margining.
The PLLIN pin provides frequency synchronization of the
device to an external clock. The TRACK/SS pin is used
for power supply tracking and soft-start programming.
10
For more information www.linear.com/LTM4601
4601fd
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTM4601AV | 制造商:LINER 制造商全称:Linear Technology 功能描述:12A DC/DC μModules with PLL, Output Tracking and Margining |
| LTM4601AV-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:12A DC/DC μModules with PLL, Output Tracking and Margining |
| LTM4601EV#PBF | 功能描述:IC DC/DC UMODULE 12A 118-LGA RoHS:是 类别:电源 - 板载 >> DC DC Converters 系列:µModule® 设计资源:VI-200, VI-J00 Design Guide, Appl Manual 标准包装:1 系列:* 类型:隔离 输出数:1 电压 - 输入（最小）:66V 电压 - 输入（最大）:160V Voltage - Output 1:12V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出（最大）:* 电源（瓦） - 制造商系列:50W 电压 - 隔离:* 特点:* 安装类型:通孔 封装/外壳:9-FinMod 尺寸/尺寸:4.60" L x 1.86" W x 0.79" H（116.8mm x 47.2mm x 20.1mm） 包装:散装 工作温度:-25°C ~ 85°C 效率:* 电源（瓦特）- 最大:* |
| LTM4601EV#PBF | 制造商:Linear Technology 功能描述:DC/DC ?Module IC 制造商:Linear Technology 功能描述:IC, STEP-DOWN DC/DC MODULE, LGA-118 |
| LTM4601EV-1#PBF | 功能描述:IC DC/DC UMODULE 12A 118-LGA RoHS:是 类别:电源 - 板载 >> DC DC Converters 系列:µModule® 设计资源:VI-200, VI-J00 Design Guide, Appl Manual 标准包装:1 系列:* 类型:隔离 输出数:1 电压 - 输入（最小）:66V 电压 - 输入（最大）:160V Voltage - Output 1:12V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出（最大）:* 电源（瓦） - 制造商系列:50W 电压 - 隔离:* 特点:* 安装类型:通孔 封装/外壳:9-FinMod 尺寸/尺寸:4.60" L x 1.86" W x 0.79" H（116.8mm x 47.2mm x 20.1mm） 包装:散装 工作温度:-25°C ~ 85°C 效率:* 电源（瓦特）- 最大:* |
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