- 您现在的位置：买卖IC网 > PDF目录20788 > LTM4601AIV#PBF (Linear Technology)IC DC/DC UMODULE 12A 133-LGA PDF资料下载
参数资料
| 型号： | LTM4601AIV#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 14/30页 |
| 文件大小： | 0K |
| 描述： | IC DC/DC UMODULE 12A 133-LGA |
| 产品培训模块： | Power Module vs. Discrete DC to DC |
| 软件下载： | LTM4601A Spice Model |
| 产品目录绘图： | LTM Series_15x15x2.8 |
| 设计资源： | DC1414A Design Files LTM4601AIV#PBF Footprint.bxl |
| 特色产品： | μModule Products |
| 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 |
| 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 0.11" H（15.0mm x 15.0mm x 2.8mm） |
| 包装： | 托盘 |
| 工作温度： | -40°C ~ 85°C |
| 效率： | 95% |
| 产品目录页面： | 2711 (CN2011-ZH PDF) |
| 配用： | DC1041A-A-ND - BOARD EVAL LTM4601 DC1414A-ND - BOARD DEMO LTM4601A |
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页当前第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
LTM4601/LTM4601-1
APPLICATIONS INFORMATION
Therefore, the output ripple voltage can be calculated with
the known effective output ripple current. The equation:
Δ V OUT(P-P) ≈ ( Δ I L /(8 ? f ? m ? C OUT ) + ESR ? Δ I L ), where f
is frequency and m is the number of parallel phases. This
calculation process can be easily accomplished by using
LTpowerCAD?.
Fault Conditions: Current Limit and Overcurrent
Foldback
LTM4601 has a current mode controller, which inher-
ently limits the cycle-by-cycle inductor current not only in
steady-state operation, but also in response to transients.
Output Voltage Tracking
Output voltage tracking can be programmed externally
using the TRACK/SS pin. The output can be tracked up and
down with another regulator. The master regulator’s output
is divided down with an external resistor divider that is the
same as the slave regulator’s feedback divider. Figure 5
shows an example of coincident tracking. Ratiometric
modes of tracking can be achieved by selecting different
resistor values to change the output tracking ratio. The
master output must be greater than the slave output for
the tracking to work. Figure 6 shows the coincident output
tracking characteristics.
( )
t SOFTSTART = 0.8 ? 0.6V ± V OUT(MARGIN)
C SS
TRACK CONTROL
V IN
PLLIN TRACK/SS
LTM4601
R SET
To further limit current in the event of an overload condi-
tion, the LTM4601 provides foldback current limiting. If the
output voltage falls by more than 50%, then the maximum
output current is progressively lowered to about one sixth
of its full current limit value.
Soft-Start and Tracking
The TRACK/SS pin provides a means to either soft-start
the regulator or track it to a different power supply. A
capacitor on this pin will program the ramp rate of the
output voltage. A 1.5μA current source will charge up the
external soft-start capacitor to 80% of the 0.6V internal
voltage reference plus or minus any margin delta. This will
control the ramp of the internal reference and the output
voltage. The total soft-start time can be calculated as:
?
1.5μA
V IN
C IN
MASTER
OUTPUT
R2
60.4k
R1
40.2k
100k
PGOOD V OUT SLAVE OUTPUT
MPGM V FB C OUT
RUN MARG0
COMP MARG1
INTV CC V OUT_LCL
DRV CC DIFFV OUT
V OSNS+
V OSNS–
SGND PGND f SET
40.2k
4601 F05
Figure 5. Coincident Tracking Schematic
When the RUN pin falls below 1.5V, then the TRACK/SS
pin is reset to allow for proper soft-start control when the
regulator is enabled again. Current foldback and forced
continuous mode are disabled during the soft-start pro-
cess. The soft-start function can also be used to control
the output ramp up time, so that another regulator can
be easily tracked to it.
OUTPUT
VOLTAGE
TIME
MASTER OUTPUT
SLAVE OUTPUT
4601 F06
Figure 6. Coincident Output Tracking Characteristics
14
For more information www.linear.com/LTM4601
4601fd
相关PDF资料 |
PDF描述 |
|---|---|
| TH3B685M016D1800 | CAP TANT 6.8UF 16V 20% 1411 |
| TH3B685K016F1800 | CAP TANT 6.8UF 16V 10% 1411 |
| TH3B685K016D1800 | CAP TANT 6.8UF 16V 10% 1411 |
| B82432T1334K | INDUCTOR 330UH 120MA 1812 10% |
| ISL97682IRTZ | IC LED DVR PWM CTRL 2CH 16TQFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTM4601AIY#PBF | 功能描述:IC DC/DC UMODULE 12A 133-BGA 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:* |
| 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 |
发布紧急采购，3分钟左右您将得到回复。