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参数资料
| 型号： | MIC5164YMM |
| 厂商： | Micrel Inc |
| 文件页数： | 8/23页 |
| 文件大小： | 0K |
| 描述： | IC REG CTLR DUAL DDR2/3 10MSOP |
| 特色产品： | MIC5164 Dual Regulator |
| 标准包装： | 100 |
| 应用： | 控制器，DDR3，GDDR3/4/5 |
| 输入电压： | 1.35 V ~ 6 V |
| 输出数： | 1 |
| 输出电压： | 可编程 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 管件 |
| 其它名称： | 576-3721-5 |
Micrel, Inc.
Functional Description
The MIC5164 is a high-performance linear controller,
utilizing scalable N-Channel MOSFETs to provide
JEDEC-compliant bus termination. Termination is
achieved by dividing down the V DDQ voltage half,
providing the reference (V REF ) voltage. The MIC5164
controls two external N-Channel MOSFETs to form two
separate regulators. It operates by switching between
either the high-side MOSFET or the low-side MOSFET,
depending on whether the current is being sourced to
the load or being sunk by the regulator.
VDDQ
The VDDQ pin on the MIC5164 provides the source
current through the high side N-Channel and the
reference voltage to the device. The MIC5164 can
operate at V DDQ input voltages as low as 1.35V. A
bypass capacitance will increase performance by
improving the source impedance at higher frequencies.
VREF
Two resistors divide down the V DDQ voltage to provide
V REF . The resistors are valued at around 21k ? . A
minimum capacitor value of 120pF from V REF to ground
is mandatory.
MIC5164
VCC
VCC supplies the internal circuitry of the MIC5164 and
provides the voltage to drive the external N-Channel
MOSFETs. A small 1 μ F ceramic capacitor is
recommended for bypassing the VCC pin.
FB and COMP
The feedback (FB) pin provides the path for the error
amplifier to regulate V TT . A feedback resistor is
recommended and resistor values should not exceed
10k ? . The compensation capacitors should not be less
than 40pF.
EN
The MIC5164 features an active-high enable (EN) input.
In the off-mode state, leakage currents are reduced to
microamperes. EN has thresholds compatible with
TTL/CMOS for simple logic interfacing.
PG
MIC5164 features a Power Good (PG) output. PG is an
open-drain output with an active-high signal. PG requires
a pull-up resistor to VCC.
June 2010
8
M9999-061510
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC5164YMM TR | 功能描述:低压差稳压器 - LDO Single Output, PWM Sync Buck Control RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MIC5165 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Dual Regulator Controller for DDR3 GDDR3/4/5 Memory Termination |
| MIC5165YMM | 功能描述:低压差稳压器 - LDO Dual Regulator Controller for DDR2/3 w/ Power Good RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MIC5165YMM TR | 功能描述:低压差稳压器 - LDO Dual Regulator Controller for DDR2/3 w/ Power Good RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MIC5166 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:3A High-Speed Low VIN DDR Terminator |
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