參數(shù)資料
型號(hào)： PM6680ATR
廠商： STMICROELECTRONICS
元件分類(lèi)： 穩(wěn)壓器
英文描述： 0.4 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32
封裝： 5 X 5 MM, LEAD FREE, VFQFPN-32
文件頁(yè)數(shù)： 1/48頁(yè)
文件大?。?/td> 1932K
代理商： PM6680ATR
December 2007
Rev 2
1/48
48
PM6680A
Dual synchronous step-down controller
with adjustable output voltages plus LDO
Features
■ 6 V to 36 V input voltage range
■ Adjustable output voltages
■ 5V LDO delivers 100 mA peak current
■ 1.237 V ± 1 % reference voltage available
externally
■ Current sensing using low side MOSFETs
RDS(on)
■ Valley current sensing
■ Soft-start internally fixed at 2ms
■ Soft output discharge
■ Latched OVP and UVP
■ Selectable pulse skipping at light loads
■ Selectable minimum frequency (33 kHz) in
pulse skip mode
■ 5mW maximum quiescent power
■ Independent power good signals
■ Output voltage ripple compensation
■ Thermal shutdown
Applications
■ Embedded computer system
■ FPGA system power
■ Industrial applications on 24 V
■ High performance and high density DC/DC
modules
Description
PM6680A is a dual step-down controller
specifically designed to provide extremely high
efficiency conversion, with loss less current
sensing technique. The constant on-time
architecture assures fast load transient response
and the embedded voltage feed-forward provides
nearly constant switching frequency operation. An
embedded integrator control loop compensates
the DC voltage error due to the output ripple.
Pulse skipping technique increases efficiency at
very light load. Moreover a minimum switching
frequency of 33 kHz is selectable to avoid audio
noise issues. The PM6680A provides a selectable
switching frequency, allowing three different
values of switching frequencies for the two
switching sections. The output voltages OUT1
and OUT2 can be adjusted from 0.9 V to 5 V and
from 0.9 V to 3.3 V respectively.
VFQFPN-32 5X5
Table 1.
Device summary
Order codes
Package
Packaging
PM6680A
VFQFPN-32 5X5 (exposed pad)
Tube
PM6680ATR
Tape and reel
相關(guān)PDF資料
PDF描述
PM6680A 0.4 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32
PM6680TR 0.4 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32
PM6685TR DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32
PM6686 SWITCHING CONTROLLER, QCC32
PM75B6L1C060 AC MOTOR CONTROLLER, DMA19
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PM6680TR 功能描述:DC/DC 開(kāi)關(guān)控制器 No Rsense dual StepDwn 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
PM6681A 功能描述:DC/DC 開(kāi)關(guān)控制器 Dual Synch CTRLR Adj Voltage LDO 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
PM6681A_08 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Dual synchronous step-down controller with adjustable LDO
PM6681ATR 功能描述:DC/DC 開(kāi)關(guān)控制器 DUAL STEP-DOWN CONTROLLER W/ADJ LDO 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
PM6685 功能描述:DC/DC 開(kāi)關(guān)控制器 Dual 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
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