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参数资料
| 型号： | PDT012A0X3-SRZ |
| 厂商： | LINEAGE POWER LLC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT PACKAGE-17 |
| 文件页数： | 9/39页 |
| 文件大小： | 856K |
| 代理商： | PDT012A0X3-SRZ |
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Preliminary Data Sheet
May 4, 2011
12A Digital Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.45Vdc to 5.5Vdc output; 12A output current
LINEAGE POWER
17
Dual Layout
Identical dimensions and pin layout of Analog and
Digital Pico DLynx modules permit migration from one
to the other without needing to change the layout. To
support this, 2 separate Trim Resistor locations have
to be provided in the layout. As shown in Fig. 46, for
the digital modules, the resistor is connected between
the TRIM pad and SGND and in the case of the analog
module it is connected between TRIM and GND.
Caution – For digital modules, do not connect
SIG_GND to GND elsewhere in the layout
Figure 46. Connections to support either Analog
or Digital PicoDLynx on the same layout.
Tunable Loop
TM
The module has a feature that optimizes transient
response of the module called Tunable Loop
TM.
External capacitors are usually added to the output of
the module for two reasons: to reduce output ripple
and noise (see Figure 38) and to reduce output voltage
deviations from the steady-state value in the presence
of dynamic load current changes. Adding external
capacitance however affects the voltage control loop of
the module, typically causing the loop to slow down
with sluggish response. Larger values of external
capacitance could also cause the module to become
unstable.
The Tunable Loop
TM allows the user to externally
adjust the voltage control loop to match the filter
network connected to the output of the module. The
Tunable Loop
TM is implemented by connecting a series
R-C between the VS+ and TRIM pins of the module,
as shown in Fig. 47. This R-C allows the user to
externally adjust the voltage loop feedback
compensation of the module.
Figure. 47. Circuit diagram showing connection of
RTUME and CTUNE to tune the control loop of the
module.
Recommended values of RTUNE and CTUNE for different
output capacitor combinations are given in Tables 2
and 3. Table 3 shows the recommended values of
RTUNE and CTUNE for different values of ceramic output
capacitors up to 1000uF that might be needed for an
application to meet output ripple and noise
requirements. Selecting RTUNE and CTUNE according to
Table 3 will ensure stable operation of the module.
In applications with tight output voltage limits in the
presence of dynamic current loading, additional output
capacitance will be required. Table 3 lists
recommended values of RTUNE and CTUNE in order to
meet 2% output voltage deviation limits for some
common output voltages in the presence of a 6A to
12A step change (50% of full load), with an input
voltage of 12V.
Please contact your Lineage Power technical
representative to obtain more details of this feature as
well as for guidelines on how to select the right value
of external R-C to tune the module for best transient
performance and stable operation for other output
capacitance values or input voltages other than 12V.
Table 2. General recommended values of of RTUNE
and CTUNE for Vin=12V and various external
ceramic capacitor combinations.
Co
1x47
μF 2x47μF 4x47μF 6x47μF 10x47μF
RTUNE
330
220
CTUNE 100pF
560pF 1500pF 2200pF
10nF
Co
20x47
μF
RTUNE
180
CTUNE 6800pF
VS+
MODULE
SIG_GND
TRIM
VOUT
RTune
CTune
RTrim
CO
GND
MODULE
(PVX012 / PDT012)
Rtrim1
for
Digital
GND(Pin 7)
SIG_GND
TRIM
Rtrim2
for
Analog
相关PDF资料 |
PDF描述 |
|---|---|
| PDT012A0X3-SRDZ | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PE3236-54 | PHASE LOCKED LOOP, PQCC44 |
| PE3236-21 | PHASE LOCKED LOOP, PQCC44 |
| PE33361MLIAA-Z | PHASE LOCKED LOOP, QCC48 |
| PE33361MLIAA | PHASE LOCKED LOOP, QCC48 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PDT012A0X43-SRZ | 功能描述:DC/DC转换器 3-14.4Vin .6-5.5Vout 12A PosLogic Digital RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| PDT0311 | 制造商:AGILENT 制造商全称:AGILENT 功能描述:Connectorized PIN Photodiodes |
| PDT0311-FC-A | 制造商:AGILENT 制造商全称:AGILENT 功能描述:Connectorized PIN Photodiodes |
| PDT0312 | 制造商:AGILENT 制造商全称:AGILENT 功能描述:Connectorized PIN Photodiodes |
| PDT0312-FC-A | 制造商:AGILENT 制造商全称:AGILENT 功能描述:Connectorized PIN Photodiodes |
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