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參數(shù)資料
| 型號： | TPS5130PT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.5 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PQFP48 |
| 封裝： | GREEN, PLASTIC, LQFP-48 |
| 文件頁數(shù)： | 5/31頁 |
| 文件大?。?/td> | 526K |
| 代理商： | TPS5130PT |
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TPS5130
SLVS426 MAY 2002
www.ti.com
13
5-V REGULATOR
An internal linear voltage regulator is used for the high-side driver bootstrap. Since the input voltage ranges from 4.5 V to
28 V, this feature offers a fixed bootstrap voltage to simplify the drive design. It is active if the STBY_VREF5 is HIGH and
has a tolerance of 4%. The 5-V regulator is used for powering the low-side driver and the VREF. When this regulator is
disconnected from the MOSFET drivers, it is used only for the source of VREF.
3.3-V REGULATOR
The TPS5130 has a 3.3-V linear regulator. The output is made from the internal 5-V regulator or an external 5 V from the
REG5V_IN pin. The maximum output current of this regulator is limited to 30 mA by an output current limit control. A ceramic
capacitor of 4.7
F should be connected between the VREF3.3 and GND pins to stabilize the output voltage.
EXTERNAL 5-V INPUT AND 5-V SWITCH
If the internal 5-V switch detects 5-V input from the REG5V_IN pin, the internal 5-V regulator is disconnected from the
MOSFET drivers. The external 5 V is used for both the high-side bootstrap and the low-side driver, thus increasing the
efficiency. When an excess voltage is applied to the REG5V_IN pin, the OVP timer starts to charge the FLT capacitor and
latches all the MOSFET drivers and the LDO at OFF state after a set time.
PHASE INVERTER
The SBRC3 of the TPS5130 operates in the same phase as the internal triangular oscillator output while the SBRC1 and
the SBRC2 operate 180 degrees out of phase. When the SBRC1 and the SBRC3 (or the SBRC2 and the SBRC3) share
the same input power supply, the TPS5130 realizes 180 degrees out of phase operation that reduces input current ripple
and enables the input capacitor value smaller.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS5130PT | 制造商:Texas Instruments 功能描述:Controller IC 制造商:Texas Instruments 功能描述:IC, TRIPLE SYNC BUCK CONTROLLER, LQFP-48 |
| TPS5130PTG4 | 功能描述:DC/DC 開關(guān)控制器 Triple Sync Buck w/LDO Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TPS5130PTR | 功能描述:DC/DC 開關(guān)控制器 Triple Sync Buck w/LDO Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TPS5130PTRG4 | 功能描述:DC/DC 開關(guān)控制器 Triple Sync Buck w/LDO Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TPS5130-Q1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:TRIPLE SYNCHRONOUS BUCK CONTROLLER WITH NMOS LDO CONTROLLER |
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