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參數(shù)資料
| 型號(hào)： | L5953 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.2 A SWITCHING REGULATOR, 425 kHz SWITCHING FREQ-MAX, PDSO36 |
| 封裝： | LEAD FREE, SOP-36 |
| 文件頁(yè)數(shù)： | 7/31頁(yè) |
| 文件大?。?/td> | 420K |
| 代理商： | L5953 |
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Product(s)
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Product(s)
L5953
Functional description
2.6
PWM step down voltage regulator
The switching regulator (
Figure 11.) inside the L5953 is a voltage control mode (also known
as a direct duty cycle) Buck regulator: the error signal coming from the error amplifier is
compared with a sawtooth to set on and off times of the power switch.
The feedforward control is introduced to get a quickly response to input voltage changes: the
sawtooth has a fixed frequency and an amplitude variable with the battery voltage.
Continuous mode operation is recommended in order to reduce the stress of the output
capacitor and of the free-wheeling diode.
2.6.1
Error amplifier and compensation network
The error amplifier (EA) is a voltage amplifier whose non-inverting input is fixed to the
reference voltage (1.275V bandgap voltage) and whose inverting input and output are
externally available for feedback and frequency compensation.
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PDF描述 |
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| L5962 | SWITCHING REGULATOR, PDSO36 |
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| L5988D | 5.6 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| L5994A | 1 A DUAL SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PQFP32 |
| L5994 | 1 A DUAL SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PQFP32 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L5953_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Multiple switching voltage regulator |
| L5954 | 功能描述:低壓差穩(wěn)壓器 - LDO Airbag App Specific Voltage Regulator RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| L5955 | 功能描述:多媒體雜項(xiàng) Multifunction Voltage Regulator RoHS:否 制造商:Texas Instruments 類型: 通道數(shù)量: 轉(zhuǎn)換速率:540 Mbps 分辨率: 封裝 / 箱體:SOIC-16 封裝:Tube |
| L5956 | 功能描述:多媒體雜項(xiàng) Multifunction Voltage Regulator RoHS:否 制造商:Texas Instruments 類型: 通道數(shù)量: 轉(zhuǎn)換速率:540 Mbps 分辨率: 封裝 / 箱體:SOIC-16 封裝:Tube |
| L5956_11 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Multifunction voltage regulator for car radio |
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