参数资料
型号: PTH04T261WAZ
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源模块
英文描述: 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
封装: ROHS COMPLIANT, PLASTIC, DIP-10
文件页数: 3/36页
文件大小: 1162K
代理商: PTH04T261WAZ
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
PTH04T260/261W
www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009
The VO Adjust control (pin 7) sets the output voltage of the PTH04T260/261W. The adjustment range of the
PTH04T260/261W 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): PTH04T260W PTH04T261W
相关PDF资料
PDF描述
PTH04T260WAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH04T260WAS 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH04T261WAZT 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH04T261WAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH05050YAZT 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
相关代理商/技术参数
参数描述
PTH04T261WAZT 功能描述:DC/DC转换器 3A 2.2V-5.5Vin Adj Pwr Module 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:
PTH05000 WAZ 制造商:Texas Instruments 功能描述:
PTH05000W 制造商:未知厂家 制造商全称:未知厂家 功能描述:6 A. 5-V Input Wide-Output Adjust Plug-in Power Module
PTH05000WAD 功能描述:DC/DC转换器 6A 5VInput Wide-Out Adj Plug-in Pwr Mod 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:
PTH05000WAH 功能描述:DC/DC转换器 6A 5VInput Wide-Out Adj Plug-in Pwr Mod 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: