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参数资料
| 型号： | LTM4608IV#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 13/26页 |
| 文件大小： | 0K |
| 描述： | IC DC/DC UMODULE 8A 68-LGA |
| 产品培训模块： | Power Module vs. Discrete DC to DC |
| 软件下载： | LTM4608 Spice Model |
| 产品目录绘图： | LTM Series_9x15x2.8 |
| 设计资源： | LTM4608IV#PBF Footprint.bxl |
| 特色产品： | μModule Products |
| 标准包装： | 170 |
| 系列： | µModule® |
| 类型： | 非隔离（POL） |
| 输出数： | 1 |
| 电压 - 输入（最小）： | 2.7V |
| 电压 - 输入（最大）： | 5.5V |
| Voltage - Output 1： | 0.6 ~ 5 V |
| 电流 - 输出（最大）： | 8A |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 68-LGA |
| 尺寸/尺寸： | 0.59" L x 0.35" W x 0.11" H（15.0mm x 9.0mm x 2.8mm） |
| 包装： | 托盘 |
| 工作温度： | -40°C ~ 85°C |
| 效率： | 98% |
| 产品目录页面： | 2711 (CN2011-ZH PDF) |
LTM4608
APPLICATIONS INFORMATION
provide more output current without increasing input and
output voltage ripple. The CLKIN pin allows the LTC4608
to synchronize to an external clock (between 0.75MHz
and 2.25MHz) and the internal phase-locked loop allows
the LTM4608 to lock onto CLKIN’s phase as well. The
CLKOUT signal can be connected to the CLKIN pin of the
following LTM4608 stage to line up both the frequency
and the phase of the entire system. Tying the PHMODE
pin to SV IN , SGND or SV IN /2 (floating) generates a phase
difference (between CLKIN and CLKOUT) of 180°, 120° or
90° respectively, which corresponds to a 2-phase, 3-phase
or 4-phase operation. A total of 6 phases can be cascaded
to run simultaneously with respect to each other by pro-
gramming the PHMODE pin of each LTM4608 to different
levels. For a 6-phase example in Figure 2, the 2nd stage
that is 120° out of phase from the 1st stage can generate
a 240° (PHMODE = 0) CLKOUT signal for the 3rd stage,
which then can generate a CLKOUT signal that’s 420°,
or 60° (PHMODE = SV IN ) for the 4th stage. With the 60°
CLKIN input, the next two stages can shift 120° (PHMODE
= 0) for each to generate a 300° signal for the 6th stage.
Finally, the signal with a 60° phase shift on the 6th stage
(PHMODE is floating) goes back to the 1st stage. Figure 3
shows the configuration for a 12 phase configuration
A multiphase power supply significantly reduces the
amount of ripple current in both the input and output
capacitors. The RMS input ripple current is reduced by,
and the effective ripple frequency is multiplied by, the
number of phases used (assuming that the input voltage
is greater than the number of phases used times the output
voltage). The output ripple amplitude is also reduced by
the number of phases used.
0
120
240
(420)
60
180
300
CLKIN CLKOUT
+120
CLKIN CLKOUT
+120
CLKIN CLKOUT
+180
CLKIN CLKOUT
+120
CLKIN CLKOUT
+120
CLKIN CLKOUT
PHMODE
PHASE 1
PHMODE
PHASE 3
S VIN
PHMODE
PHASE 5
PHMODE
PHASE 2
PHMODE
PHASE 4
PHMODE
PHASE 6
4608 F02
Figure 2. 6-Phase Operation
0
120
240
(420)
60
180
300
CLKIN CLKOUT
+120
CLKIN CLKOUT
+120
CLKIN CLKOUT
+180
CLKIN CLKOUT
+120
CLKIN CLKOUT
+120
CLKIN CLKOUT
PHMODE
PHMODE
S VIN
PHMODE
PHMODE
PHMODE
PHMODE
4608 F02
V +
OUT1
LTC6908-2
OUT2
PHASE 1
90
PHASE 5
210
PHASE 9
330
PHASE 3
(510)
150
PHASE 7
270
PHASE 11
(390)
30
CLKIN CLKOUT
+120
CLKIN CLKOUT
+120
CLKIN CLKOUT
+180
CLKIN CLKOUT
+120
CLKIN CLKOUT
+120
CLKIN CLKOUT
PHMODE
PHASE 4
PHMODE
PHASE 8
S VIN
PHMODE
PHASE 12
PHMODE
PHASE 6
PHMODE
PHASE 10
PHMODE
PHASE 2
4608 F03
Figure 3. 12-Phase Operation
4608fd
13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTM4608V | 制造商:LINER 制造商全称:Linear Technology 功能描述:Low VIN, 8A DC/DC μModuleTM with Tracking, Margining, and Frequency Synchronization |
| LTM4609 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Efficiency, Synchronous, 4-Switch Buck-Boost Controller |
| LTM4609_12 | 制造商:LINER 制造商全称:Linear Technology 功能描述:36VIN, 34VOUT High Efficiency Buck-Boost DC/DC |
| LTM4609EV | 制造商:LINER 制造商全称:Linear Technology 功能描述:36VIN, 34VOUT High Effi ciency Buck-Boost DC/DC μModule |
| LTM4609EV#PBF | 功能描述:IC UMODULE BUCK-BOOST 141-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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