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參數(shù)資料
| 型號： | L6725 |
| 廠商： | 意法半導體 |
| 英文描述： | Low cost adjustable step-down controller |
| 中文描述： | 低成本可調(diào)降壓控制器 |
| 文件頁數(shù)： | 4/27頁 |
| 文件大?。?/td> | 489K |
| 代理商： | L6725 |
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Summary description
L6725
4/27
1
Summary description
The device is a low cost pwm controller dedicated for low voltage distributed DC-DC. The input
voltage can range from 1.8V to 14V, while the supply voltage can range from 4.5V to 14V. The
output voltage is adjustable down to 0.6V.
High peak current gate drivers provide for fast switching to the external power section, and the
output current can be in excess of 20A. The device is capable to manage minimum on-times
(T
ON
) shorter than 100ns making possible conversions with very low duty cycle and very high
switching frequency. In order to guarantee a real overcurrent protection, also with very narrow
T
ON
, the current sense is realized both on the high-side and low-side MOSFETs. When
necessary, two different current limit protections can be externally set through an external
resistor. The device can sink current after the soft-start phase while, during the soft-start, the
sink mode capability is disabled in order to allow a proper start-up also in pre-biased output
voltage conditions. Other features are over-voltage-protection and thermal shutdown.
1.1
Functional description
Figure 1.
Block diagram
相關PDF資料 |
PDF描述 |
|---|---|
| L6725TR | Low cost adjustable step-down controller |
| L6728 | Single phase PWM controller with PowerGOOD |
| L6728TR | Single phase PWM controller with PowerGOOD |
| 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 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L6725_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Voltage mode PWM controller with bootstrap anti-discharging system |
| L6725A | 功能描述:開關變換器、穩(wěn)壓器與控制器 Vltg Mode PWM Controller 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 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6725ATR | 功能描述:開關變換器、穩(wěn)壓器與控制器 Step-Down Controller 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 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6725TR | 功能描述:電壓模式 PWM 控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| L6726 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:UNIVERSAL SPEECH CIRCUIT |
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