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參數(shù)資料
| 型號： | L6728TR |
| 廠商： | 意法半導體 |
| 英文描述： | Single phase PWM controller with PowerGOOD |
| 中文描述： | 單相PWM控制器與電源良好 |
| 文件頁數(shù)： | 9/32頁 |
| 文件大?。?/td> | 942K |
| 代理商： | L6728TR |
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L6728
Device description
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Device description
L6728 is a single-phase PWM controller with embedded high-current drivers that provides
complete control logic and protections to realize in an easy and simple way a general DC-
DC step-down converter. Designed to drive N-channel MOSFETs in a synchronous buck
topology, with its high level of integration this 10-pin device allows reducing cost and size of
the power supply solution also providing real-time PGOOD in a compact VFQFPN10
3x3mm.
L6728 is designed to operate from a 5V or 12V supply. The output voltage can be precisely
regulated to as low as 0.8V with ±0.8% accuracy over line and temperature variations. The
switching frequency is internally set to 300kHz.
This device provides a simple control loop with a voltage-mode error-amplifier. The error-
amplifier features a 15MHz gain-bandwidth product and 8V/μs slew rate, allowing high
regulator bandwidth for fast transient response.
To avoid load damages, L6728 provides over current protection as well as over voltage,
under voltage and feedback disconnection protection. The over current trip threshold is
programmable by a simple resistor connected from Lgate to GND. Output current is
monitored across Low-Side MOSFET R
dsON
, saving the use of expensive and space-
consuming sense resistor. Output voltage is monitored through dedicated VSEN pin.
L6728 implements soft-start increasing the internal reference in closed loop regulation.
Low-Side-Less feature allows the device to perform soft-start over pre-biased output
avoiding high current return through the output inductor and dangerous negative spike at the
load side.
L6728 is available in a compact VFQFN10 3x3mm package with exposed pad.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L6731B | Transistor; Type: Amplifiers/Bipolar; VCEO (V): 25; Ic (A): 1; Pc (W): 0.8; hFE: 85 to 330; VCE (sat) (V) max: 0.5; Package: TO-92Mod |
| L6731BTR | Transistor; Type: Amplifiers/Bipolar; VCEO (V): -25; Ic (A): -1; Pc (W): 0.8; hFE: 85 to 330; VCE (sat) (V) max: -0.5; Package: TO-92Mod |
| L6732 | Adjustable step-down controller with synchronous rectification |
| L6732TR | Adjustable step-down controller with synchronous rectification |
| L6902D013TR | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6730 | 功能描述:DC/DC 開關(guān)控制器 Adjustable Step Down 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 安裝風格: 封裝 / 箱體:CPAK |
| L6730_09 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification |
| L6730B | 功能描述:DC/DC 開關(guān)控制器 Adjustable Step Down 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 安裝風格: 封裝 / 箱體:CPAK |
| L6730BTR | 功能描述:DC/DC 開關(guān)控制器 Adjustable Step Down 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 安裝風格: 封裝 / 箱體:CPAK |
| L6730C | 功能描述:IC REG CTRLR BUCK PWM VM 20TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:100% 電源電壓:8.2 V ~ 30 V 降壓:無 升壓:無 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:0°C ~ 70°C 封裝/外殼:8-DIP（0.300"，7.62mm） 包裝:管件 產(chǎn)品目錄頁面:1316 (CN2011-ZH PDF) |
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