參數(shù)資料
型號： PTH04T231WAZT
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源模塊
英文描述： 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
封裝： ROHS COMPLIANT, DIP-10
文件頁數(shù)： 3/36頁
文件大?。?/td> 1160K
代理商： PTH04T231WAZT
APPLICATION INFORMATION
ADJUSTING THE OUTPUT VOLTAGE
R
SET + 10 kW
0.69
V
O * 0.69
* 1.43 kW
(1)
UDG06043
RSET
1%
0.05 W
VO
+Sense
Sense
VoAdj
GND
3
4
5
6
7
+Sense
Sense
GND
VO
PTH04T230/231W
www.ti.com ............................................................................................................................................. SLTS271C – SEPTEMBER 2006 – REVISED MARCH 2009
The VO Adjust control (pin 7) sets the output voltage of the PTH04T230/231W. The adjustment range of the
PTH04T230/231W is 0.69V to 3.6V. The adjustment method requires the addition of a single external resistor,
RSET, that must be connected directly between the VO Adjust and the –Sense pins. Table 1 gives the standard
value of the external resistor for a number of standard voltages, along with the actual output voltage that this
resistance value provides.
For other output voltages, the value of the required resistor can either be calculated using the following formula,
or simply selected from the range of values given in Table 2. Figure 9 shows the placement of the required
resistor.
Table 1. Preferred Values of RSET for Standard Output Voltages
VO (Standard) (V)
RSET (Standard Value) (kΩ)
VO (Actual) (V)
3.3 (1)
1.21
3.304
2.5 (1)
2.37
2.506
1.8 (1)
4.75
1.807
1.5 (1)
6.98
1.510
1.2
12.1
1.200
1.0
20.5
1.004
0.7
681
0.700
(1)
The minimum input voltage is 2.2 V or (VO + 0.5) V, whichever is greater.
(1)
RSET: Use a 0.05 W resistor with a tolerance of 1% and temperature stability of 100 ppm/°C (or better). Connect the
resistor directly between pins 7 and 6, as close to the regulator as possible, using dedicated PCB traces.
(2)
Never connect capacitors from VO Adjust to either GND, VO, or +Sense. Any capacitance added to the VO Adjust pin
affects the stability of the regulator.
Figure 9. VO Adjust Resistor Placement
Copyright 2006–2009, Texas Instruments Incorporated
11
Product Folder Link(s): PTH04T230W PTH04T231W
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PTH04T240F 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-A, 2.2-V to 5.5-V INPUT, NON-ISOLATED POWER MODULE FOR 3-GHz DSP SYSTEMS
PTH04T240F_10 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-A, 2.2-V to 5.5-V INPUT, NON-ISOLATED POWER MODULE FOR 3-GHz DSP SYSTEMS
PTH04T240FAD 功能描述:DC/DC轉(zhuǎn)換器 10A,2.2V-5.5V Inp Pwr Mod RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸:
PTH04T240FAS 功能描述:DC/DC轉(zhuǎn)換器 10A,2.2V-5.5V Inp Pwr Mod RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸:
PTH04T240FAST 功能描述:DC/DC轉(zhuǎn)換器 10A,2.2V-5.5V Inp Pwr Mod RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸:
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