收藏本站
LTM4603HV
DECOUPLI G REQUIRE E TS
T A = 25°C, V IN = 12V. Use Figure 1 con?guration.
SYMBOL
C IN
PARAMETER
External Input Capacitor Requirement
CONDITIONS
I OUT = 6A
MIN
20
TYP
MAX
UNITS
μF
(V IN = 4.5V to 28V, V OUT = 2.5V)
C OUT
External Output Capacitor Requirement
I OUT = 6A
100
200
μF
(V IN = 4.5V to 28V, V OUT = 2.5V)
OPERATIO
Power Module Description
The LTM4603HV is a standalone nonisolated switching
mode DC/DC power supply. It can deliver up to 6A of DC
output current with few external input and output capaci-
tors. This module provides precisely regulated output volt-
age programmable via one external resistor from 0.6V DC to
5.0V DC over a 4.5V to 28V wide input voltage. The typical
application schematic is shown in Figure 20.
The LTM4603HV has an integrated constant on-time
current mode regulator, ultralow R DS(ON) FETs with fast
switching speed and integrated Schottky diodes. The typi-
cal switching frequency is 1MHz at full load. With current
mode control and internal feedback loop compensation,
the LTM4603HV module has suf?cient stability margins
and good transient performance under a wide range of
operating 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 overvoltage
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
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 voltage ripple.
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 ef?ciency improvement will occur due to the reduced
power loss in the internal linear regulator. This is especially
true at the higher input voltage range.
The LTM4603HV has a very accurate differential remote
sense ampli?er with very low offset. This provides for
very accurate remote sense voltage measurement. 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.
overvoltage condition, internal top FET Q1 is turned off
4603hvf
9
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
LTM4603IV#PBF IC DC/DC UMODULE 6A 118-LGA
LTM4604AIV#PBF IC UMODULE DC/DC LV 4A 66-LGA
LTM4604IV#PBF IC DC/DC UMODULE 4A 66-LGA
LTM4605EV#PBF IC DC/DC UMODULE 5A 141-LGA
LTM4606MPV#PBF IC DC/DC UMODULE 6A 133-LGA
LTM4607IV#PBF IC BUCK/BOOST SYNC ADJ 5A 141LGA
LTM4608AEV#PBF IC BUCK SYNC ADJ 8A 68LGA
LTM4608IV#PBF IC DC/DC UMODULE 8A 68-LGA
相关代理商/技术参数
LTM4603HVEV#PBF 制造商:Linear Technology 功能描述:DC/DC Converter IC
LTM4603HVEV-1#PBF 制造商:Linear Technology 功能描述:6A 28V DCDC UMODULE: NO REMOTE
LTM4603HVEVPBF 制造商:Linear Technology 功能描述:6A 28V input DCDC uModule LTM4603HV
LTM4603HVEV-PBF 制造商:LINER 制造商全称:Linear Technology 功能描述:6A, 28VIN DC/DC μModule with PLL, Output Tracking and Margining
LTM4603HVIV#PBF 功能描述:IC DC/DC UMODULE 6A 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）:36V 电压 - 输入（最大）:76V Voltage - Output 1:5.5V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出（最大）:* 电源（瓦） - 制造商系列:200W 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 1.05" H（116.8mm x 47.2mm x 26.7mm） 包装:散装 工作温度:-10°C ~ 85°C 效率:* 电源（瓦特）- 最大:*
LTM4603HVIV#PBF 制造商:Linear Technology 功能描述:DC/DC Converter IC
LTM4603HVIV-PBF 制造商:LINER 制造商全称:Linear Technology 功能描述:6A, 28VIN DC/DC μModule with PLL, Output Tracking and Margining
LTM4603HVV 制造商:LINER 制造商全称:Linear Technology 功能描述:6A, 28VIN DC/DC μModule with PLL, Output Tracking and Margining