參數(shù)資料
型號(hào)： L6732
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
封裝： LEAD FREE, HTSSOP-16
文件頁(yè)數(shù)： 32/37頁(yè)
文件大?。?/td> 898K
代理商： L6732
Summary description
L6732
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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 600 mV with a maximum
tolerance of ±0.8 % and it is also possible to use an external reference from 0 V to 2.5 V.
The input voltage can range from 1.8 V to 14 V, while the supply voltage can range from
4.5 V to 14 V. High peak current gate drivers provide for fast switching to the external power
section, and the output current can be in excess of 20 A. The PWM duty cycle can range
from 0 % to 100 % with a minimum on-time (TON, MIN) lower than 100 ns making possible
conversions with very low duty cycle at high switching frequency. The device provides
voltage-mode control that includes a selectable frequency oscillator (250 kHz or 500 kHz).
The error amplifier features a 10 MHz gain-bandwidth-product and 5 V/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.
During the soft-start phase a constant current protection is provided while after the soft-start
the device enters in hiccup mode in case of over-current. 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. After the soft-start the device can sink current. Other features are
power good, master/slave synchronization (with 180° phase shift), over-voltage-protection,
feed-back disconnection and thermal shutdown. The HTSSOP16 package allows the
realization of really compact DC/DC converters.
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6732_08 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification
L6732_0906 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification
L6732C 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(fēng)格: 封裝 / 箱體:CPAK
L6732CTR 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Step-Dwn 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
L6732TR 功能描述:DC/DC 開關(guān)控制器 VOLTAGE REGULATOR 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(fēng)格: 封裝 / 箱體:CPAK
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