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参数资料
| 型号： | PT5406N |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 5.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, MSMA5 |
| 封装： | METAL, VERTICAL MOUNT PACKAGE-5 |
| 文件页数： | 16/16页 |
| 文件大小： | 304K |
| 代理商： | PT5406N |
Application Notes
For technical support and further information, visit http://power.ti.com
PT5400 Series
Adjusting the Output Voltage of the PT5400
Series of 6-A
SWIFT
Power Modules
The output voltage of the PT5400 series of SWIFT power
modules may be adjusted higher or lower than the factory
trimmed pre-set voltage with the addition of a single
external resistor. Table 4-1 gives the allowable adjustment
range for each model of the series as Va (min) and Va (max).
Adjust Up:
An increase in the output voltage is obtained by
adding a resistor R2, between pin 5 (Vo adj) and pin 3 (GND).
Adjust Down:
Add a resistor (R1), between pin 5 (Vo adj) and
pin 4 (Vout).
Figure 4-1
The values of (R
1) [adjust down], and R2 [adjust up],
can either be calculated using the following formulas, or
may be looked up from the range of values in Table 4-2.
Refer to Figure 4-1 for the placement of the required
resistor; either (R
1) or R2 as appropriate.
(R1)
=
Ro (Va – 0.891)
– 18.2
k
Vo – Va
R2
=
0.891 Ro
– 18.2
k
Va – Vo
Where:
Vo = Original output voltage
Va = Adjusted output voltage
Ro = The resistance value from Table 4-1
Table 4-1
ISR OUTPUT VOLTAGE ADJUSTMENT RANGE AND FORMULA PARAMETERS
Series Pt. No.
PT5401
PT5402
PT5408
PT5403
PT5404
PT5405
PT5406
PT5407
Input Bus
5 V
3.3 V 4
3.3/5 V
Vo (nom)
3.3 V
2.5 V
2 V
1.8 V
1.5 V
1.2 V
1 V
Va (min)
2.9 V
2.0 V
1.65 V
1.5 V
1.3 V
1.1 V
0.97 V
Va (max)
3.5 V
2.95 V
2.5 V 4
2.45 V
2.25 V
1.95 V
1.65 V
1.45 V
Ro (k
)
10.2
10.0
10.2
9.76
10.2
R2
Adjust Up
C2
100
F
(Req'd)
+V
O
COM
+V
IN
+
(R1)
Adj Down
PT5400
2
35
4
Vin
V o
Vo(adj)
GND
Notes:
1. Use a 1% (or better) tolerance resistor in either the (R1)
or R2 location. Place the resistor as close to the ISR as
possible.
2. Never connect capacitors from Vo adj to either GND or
Vout. Any capacitance added to the Vo adjust pin will affect
the stability of the ISR.
3. For each model, adjustments to the output voltage may
place additional limits on the minimum input voltage. The
revised minimum input voltage must comply with the
following requirement.
Vin(min) = (Va + 1.1) V or as specified in the data sheet,
whichever is greater.
4. The PT5408 operates only from a 3.3-V input bus.
The limited input to output voltage differential of this
model does not allow it to be adjusted higher than its
trimmed output voltage.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PT5407 | 制造商:TI 制造商全称:Texas Instruments 功能描述:6-A 5-V/3.3-V Input Adjustable SWIFT Power Module |
| PT5407A | 功能描述:DC/DC转换器 1V 6A 3.3/5V Input Adj SWIFT 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: |
| PT5407C | 功能描述:DC/DC转换器 1V 6A 3.3/5V Input Adj SWIFT 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: |
| PT5407N | 功能描述:开关变换器、稳压器与控制器 1V 6A 3.3/5V Input Adj SWIFT Module RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| PT5408 | 制造商:TI 制造商全称:Texas Instruments 功能描述:6-A 5-V/3.3-V Input Adjustable SWIFT Power Module |
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