参数资料
型号: LTM4613EV#PBF
厂商: Linear Technology
文件页数: 11/28页
文件大小: 0K
描述: IC DC/DC UMODULE 8A 133-LGA
产品培训模块: µModule® Family of EN55022 Class B Certified Regulators
设计资源: DC1743A Design Files
标准包装: 119
系列: µModule®
类型: 非隔离(POL)
输出数: 1
电压 - 输入(最小): 5V
电压 - 输入(最大): 36V
Voltage - Output 1: 12V
电流 - 输出(最大): 8A
安装类型: 表面贴装
封装/外壳: 133-LGA
尺寸/尺寸: 0.59" L x 0.59" W x 0.17" H(15.0mm x 15.0mm x 4.3mm)
包装: 托盘
工作温度: -40°C ~ 125°C
效率: 96%
LTM4613
APPLICATIONS INFORMATION
V OUT(MARGIN) =
? V OUT
R PGM =
V OUT 1.18V
V OUT
( R fSET || 133k )
1.5 ? 10 ? 10
Table1.R FB Standard1%ResistorValuesvsV OUT
V OUT (V) 3.3 5 6 8 10 12 14 15
R FB (kΩ) 22.1 13.7 11 8.06 6.34 5.23 4.42 4.12
The MPGM pin programs a current that when multiplied
by an internal 10k resistor sets up the 0.6V reference ±
offset for margining. A 1.18V reference divided by the
R PGM resistor on the MPGM pin programs the current.
Calculate V OUT(MARGIN) :
%V OUT
100
Where %V OUT is the percentage of V OUT to be margined,
and V OUT(MARGIN) is the margin quantity in volts:
? ? 10k
0.6V V OUT(MARGIN)
Where R PGM is the resistor value to place on the MPGM
pin to ground.
The output margining will be ± margining of the value.
This is controlled by the MARG0 and MARG1 pins. See
the truth table below:
Operating Frequency
The operating frequency of the LTM4613 is optimized to
achieve the compact package size and the minimum
output ripple voltage while still keeping high efficiency.
As shown in Figure 2, the frequency is linearly increased
with larger output voltages to keep the low output cur-
rent ripple. Figure 3 shows the inductor current ripple ?I
with different output voltages. In most applications, no
additional frequency adjusting is required.
If lower output ripple is required, the operating frequency
f can be increased by adding a resistor R fSET between f SET
pin and SGND, as shown in Figure 19.
f =
1000
800
600
400
MARG1
MARG0
MODE
LOW
LOW
NO MARGIN
200
LOW
HIGH
HIGH
LOW
MARGIN UP
MARGIN DOWN
0
2
4
6
8
10
12
14
16
HIGH
HIGH
NO MARGIN
OUTPUT VOLTAGE (V)
4613 F02
Parallel Operation
The LTM4613 device is an inherently current mode con-
trolled device. This allows the paralleled modules to have
very good current sharing and balanced thermal on the
design. Figure 21 shows a schematic of the parallel design.
The voltage feedback equation changes with the variable
N as modules are paralleled. The equation:
Figure 2. Operating Frequency vs Output Voltage
9
8
7
6
5
4
V OUT
? 1
R F B =
100k
N
0.6V
3
2
1
0
2
4
V IN = 16V
V IN = 24V
V IN = 28V
V IN = 36V
6 8 10 12
OUTPUT VOLTAGE (V)
14
16
where N is the number of paralleled modules.
4613 F03
Figure 3. Pk-Pk Inductor Current Ripple vs Output Voltage
4613f
11
相关PDF资料
PDF描述
TAJA474K050RNJ CAP TANT 0.47UF 50V 10% 1206
MIC29371-5.0BU TR IC REG LDO 5V .75A TO-263-5
VI-26H-CY-B1 CONVERTER MOD DC/DC 52V 50W
TAJA474K025YNJ CAP TANT 0.47UF 25V 10% 1206
EMM44DRTH-S13 CONN EDGECARD 88POS .156 EXTEND
相关代理商/技术参数
参数描述
LTM4613IV#PBF 功能描述:IC UMODULE DC/DC 8A 133-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):18V 电压 - 输入(最大):36V Voltage - Output 1:5.8V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出(最大):* 电源(瓦) - 制造商系列:75W 电压 - 隔离:* 特点:* 安装类型:通孔 封装/外壳:9 针法兰半砖电源模块 尺寸/尺寸:2.28" L x 2.40" W x 0.50" H(57.9mm x 61.0mm x 12.7mm) 包装:散装 工作温度:-10°C ~ 100°C 效率:* 电源(瓦特)- 最大:*
LTM4613MPV#PBF 功能描述:IC UMODULE DC/DC 8A 133-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):21V 电压 - 输入(最大):56V Voltage - Output 1:5V 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 针半砖 SlimMod 尺寸/尺寸:2.28" L x 1.80" W x 0.52" H(57.9mm x 45.7mm x 13.2mm) 包装:散装 工作温度:-10°C ~ 100°C 效率:* 电源(瓦特)- 最大:*
LTM4614 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual 4A per Channel Low VIN DC/DC μModule Regulator
LTM4614EV 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual 4A per Channel Low VIN DC/DC μModule Regulator
LTM4614EV#PBF 功能描述:IC UMODULE DC/DC DUAL 4A 144LGA 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:*