参数资料
型号: MIC2168AYMM
厂商: Micrel Inc
文件页数: 1/18页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 10-MSOP
标准包装: 100
PWM 型: 电压模式
输出数: 1
频率 - 最大: 1.1MHz
占空比: 90%
电源电压: 3 V ~ 14.5 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
包装: 管件
产品目录页面: 1092 (CN2011-ZH PDF)
其它名称: 576-1707-5
MIC2168AYMM-ND
MIC2168A
1MHz PWM Synchronous Buck-Control IC
General Description
The MIC2168A is a high-efficiency, simple to use 1MHz
PWM synchronous buck-control IC housed in a small
MSOP-10 package. The MIC2168A allow s compact
DC/DC solutions with a minimal external component
count and cost.
Features
? 3V to 14.5V input voltage range
? Adjustable output voltage dow n to 0.8V
? Up to 95% effi ciency
? 1MHz PWM operat ion
The MIC2168A operates from a 3V to 1 4.5V input,
without the need of any additional bias vol tage. Th e
output voltage can be precisely regulated do wn to 0.8V.
The adaptive all N-Channel MOSFET driv e scheme
allows efficiencies over 95% across a wide loa d range.
The MIC2168A senses current across the h igh-side N-
Cha nnel MOSFET, eliminating th e need for an
expensive and lossy current-sense resistor. C urrent limit
accuracy is maintained by a positive t e mperature
coefficient that tracks the increasing R DS (ON) of the
external MOSFET. Further cost and space are saved
by the internal in-rush-current limiting and digital soft-
start.
The MIC2168A is identical to the MI C2168 with the
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Adjustable current-limit sense s high-side N-Channel
MOSFET current
No external current sense re sistor
Adaptive gate drive increa ses efficiency
Ultra-fast respon se with hysteretic transient recovery
m ode
Overvoltage prote ction protects the load in fault
conditions
Dual mode cu rrent limit speeds up recovery time
Hiccup mode short-circuit protection
Inte rnal soft-start
Small-s ize MSOP 10-pin package
exception that the MIC2168A increase s the overcurrent
blanking time from 80ns (typ.) to 120n s (typ.)
The MIC2168A is available in a 10-pin MSOP package,
with a wide junction operating range of –40°C to
+125°C.
All support documentation can be found on Micrel’s web
site at www.micrel.com .
Applicatio ns
? Point-of-load DC/DC conversi on
? Set-top boxes
? Graphic cards
? LCD power supplies
? Telecom power supplies
? Networking power supplies
? Cable modems and routers
_______________________________________________________________________________________________________
Typical Application
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
January 2010
M9999-011510
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参数描述
MIC2168AYMM TR 功能描述:DC/DC 开关控制器 1MHz Synchronous Buck Controller (Lead Free) RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
MIC2168BMM 功能描述:IC REG CTRLR BUCK PWM VM 10-MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR)
MIC2168BMM TR 功能描述:IC REG CTRLR BUCK PWM VM 10-MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR)
MIC2168MM 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:1MHZ PWM SYNCHRONOUS BUCK CONTROL IC
MIC2168YMM 功能描述:直流/直流开关调节器 Replaced by MIC2168AYMM (Lead Free) RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5