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參數(shù)資料
| 型號： | PT5403C |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 5.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, MSMA5 |
| 封裝： | ROHS COMPLIANT, METAL, SMD-5 |
| 文件頁數(shù)： | 16/16頁 |
| 文件大?。?/td> | 304K |
| 代理商： | PT5403C |
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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PT5401N | 6 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, MSMA5 |
| PT5403A | 5.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, MSMA5 |
| PT5406N | 5.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, MSMA5 |
| PT5404C | 5.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, MSMA5 |
| PT5406C | 5.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, MSMA5 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT5403N | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 2V 6A 3.3/5V Input Adj SWIFT Module RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| PT5404 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:6-A 5-V/3.3-V Input Adjustable SWIFT Power Module |
| PT5404A | 功能描述:DC/DC轉(zhuǎn)換器 1.8V 6A 3.3/5V Input Adj SWIFT Module 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: |
| PT5404C | 功能描述:DC/DC轉(zhuǎn)換器 1.8V 6A 3.3/5V Input Adj SWIFT Module 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: |
| PT5404N | 功能描述:DC/DC轉(zhuǎn)換器 1.8V 6A 3.3/5V Input Adj SWIFT Module 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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