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參數(shù)資料
| 型號： | L6725ATR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | SOP-16 |
| 文件頁數(shù)： | 29/34頁 |
| 文件大?。?/td> | 962K |
| 代理商： | L6725ATR |
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Summary description
L6725 - L6725A
4/32
1
Summary description
The device is a flexible high performance PWM buck controller dedicated for low voltage
distributed DC-DC. The input voltage can range from 1.8V to 18V, while the supply voltage can
range from 4.5V to 18V. 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
(TON) 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
TON, 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
Vin=1.8V-14V
Vcc=4.5V-14V
L6725
PGND
PHASE
GND
LGATE
BOOT
HGATE
OCH
FB
SS
Monitor
Protection and Ref
OSC
+
-
+
-
E/A
PWM
VCCDR
-
+
-
0.6V
OCL
COMP
EAREF
LDO
PGND
PHASE
GND
LGATE
BOOT
HGATE
OCH
V
OUT
FB
SS
Monitor
Protection and Ref
OSC
+
-
+
-
+
-
E/A
PWM
VCCDR
-
+
-
OCL
COMP
EAREF
LDO
PGOOD
SYNCH
Vcc = 14V - 18V
Vin = 14V - 18V
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| L6727TR | 1.5 A SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO8 |
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| L6728AHTR | SWITCHING CONTROLLER, PDSO10 |
| L6730DTR | 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)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 |
| L6726_08 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:UNIVERSAL SPEECH CIRCUIT |
| L6726_12 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:UNIVERSAL SPEECH CIRCUIT |
| L6726A | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Sngl phase 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(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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