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參數資料
| 型號： | L6726ATR |
| 廠商： | 意法半導體 |
| 英文描述： | Single phase PWM controller |
| 中文描述： | 單相PWM控制器 |
| 文件頁數： | 9/24頁 |
| 文件大小： | 399K |
| 代理商： | L6726ATR |
L6726A
Device description
9/24
4
Device description
L6726A 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 8-pin device allows reducing cost and size of
the power supply solution.
L6726A is designed to operate from a 5V or 12V supply bus. Thanks to the high precision
0.8V internal reference, the output voltage can be precisely regulated to as low as 0.8V with
±1% accuracy over line and temperature variations. The switching frequency is internally set
to 270kHz.
This device provides a simple control loop with externally compensated transconductance
error-amplifier and programmable soft start. Low-Side-Less feature allows the device to
perform soft-start over pre-charged output avoiding negative spikes at the load side.
In order to avoid load damages, L6726A provides programmable threshold over current
protection. Output current is monitored across Low-Side MOSFET R
dsON
, saving the use of
expensive and space-consuming sense resistor. L6726A also features FB disconnection
protection, preventing dangerous uncontrolled output voltages in case of floating FB pin.
相關PDF資料 |
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| L6727 | Single phase PWM controller |
| L6727TR | Single phase PWM controller |
| L6730CQ | Adjustable step-down controller with synchronous rectification |
| L6730C | Adjustable step-down controller with synchronous rectification |
| L6730CQTR | Adjustable step-down controller with synchronous rectification |
相關代理商/技術參數 |
參數描述 |
|---|---|
| L6726-D18-T | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:UNIVERSAL SPEECH CIRCUIT |
| L6726G-D18-T | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:UNIVERSAL SPEECH CIRCUIT |
| L6726G-S18-R | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:UNIVERSAL SPEECH CIRCUIT |
| L6726G-S18-T | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:UNIVERSAL SPEECH CIRCUIT |
| L6726L-D18-T | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:UNIVERSAL SPEECH CIRCUIT |
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