參數(shù)資料
型號(hào)： L6730CQTR
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, QCC24
封裝： 4 X 4 MM, QFN-24
文件頁(yè)數(shù)： 34/50頁(yè)
文件大?。?/td> 1486K
代理商： L6730CQTR
Summary description
L6730C - L6730D
4/50
1
Summary description
The controller is an integrated circuit realized in BCD5 (BiCMOS-DMOS, version 5) fabrication
that provides complete control logic and protection for high performance step-down DC-DC and
niPOL converters.
It is designed to drive N-Channel MOSFETs in a synchronous rectified buck topology. The
output voltage of the converter can be precisely regulated down to 600mV with a maximum
tolerance of ±0.8% or to 1.2V, when one of the internal references is used. It is also possible to
use an external reference from 0V to 2.5V. The input voltage can range from 1.8V to 14V, while
the supply voltage can range from 4.5V to 14V. High peak current gate drivers provide for fast
switching to the external power section and the output current can be in excess of 20A,
depending on the number of the external MOSFETs used. The PWM duty cycle can range from
0% to 100% with a minimum on-time (TON, MIN) lower than 100ns making possible conversions
with very low duty cycle and very high switching frequency.
The device provides voltage-mode control. It includes a 400KHz free-running oscillator that is
adjustable from 100KHz to 1MHz. The error amplifier features a 10MHz gain-bandwidth-
product and 5V/s slew-rate that permits to realize high converter bandwidth for fast transient
response. The device monitors the current by using the RDS(on) of both the high-side and low-
side MOSFET(s), eliminating the need for a current sensing resistor and guaranteeing an
effective over-current-protection in all the application conditions. When necessary, two different
current limit protections can be externally set through two external resistors. A leading edge
adjustable blanking time is also available to avoid false over-current-protection (OCP)
interventions in every application condition. It is possible to select the HICCUP mode or the
constant current protection (L6730D) after the soft-start phase.
During the soft-start phase a constant current protection is provided. It is possible to select
(before the device turn-on) the sink-source or the source-only mode capability by acting on a
multifunction pin (L6730C). The L6730C disables the sink mode capability during the soft-start
in order to allow a proper start-up also in pre-biased output voltage conditions. The L6730D can
always sink current and so it can be used to supply the DDR Memory BUS termination. Other
features are Master-Slave synchronization (with 180° phase shift), Power-Good with adjustable
delay, over-voltage-protection, feed-back disconnection, selectable UVLO threshold (5V and
12V Bus) and thermal shutdown. The HTSSOP20 package allows the realization of really
compact DC/DC converters.
相關(guān)PDF資料
PDF描述
L6730CTR 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20
L6730 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20
L6730B 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20
L6730TR 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20
L6732CTR 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6730CTR 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(biāo)準(zhǔn)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(wú) 升壓:無(wú) 回掃:是 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 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(yè)面:1316 (CN2011-ZH PDF)
L6730D 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(biāo)準(zhǔn)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(wú) 升壓:無(wú) 回掃:是 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 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(yè)面:1316 (CN2011-ZH PDF)
L6730DTR 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(biāo)準(zhǔn)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(wú) 升壓:無(wú) 回掃:是 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 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(yè)面:1316 (CN2011-ZH PDF)
L6730TR 功能描述:DC/DC 開(kāi)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(kāi)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(fēng)格: 封裝 / 箱體:CPAK
L6731B 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 Adj. Step-Down w/ Synch Rectification 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(kāi)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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