参数资料
| 型号： | MIC2150YML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/27页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 24MLF |
| 标准包装： | 1 |
| PWM 型： | 电流/电压模式 |
| 输出数： | 2 |
| 频率 - 最大： | 550kHz |
| 占空比： | 80% |
| 电源电压： | 4.5 V ~ 14.5 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 ~ 125°C |
| 封装/外壳： | 24-VFQFN 裸露焊盘，24-MLF? |
| 包装： | 标准包装 |
| 其它名称： | 576-3746-6 |
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MIC2150/MIC2151
2-Phase Dual Output PWM Synchronous
Buck Control IC
General Description
The MIC2150/1 are simple 2-phase dual-output
synchronous buck control ICs featuring small size and high
efficiency. The ICs implement PWM control at 500kHz
(MIC2150) or 300kHz (MIC2151), with the outputs
switching 180 ° out of phase. The result of the out-of-phase
operation is 1MHz input ripple frequency with ripple current
cancellation, minimizing the required input filter
capacitance. A 1% output voltage tolerance allows the
maximum level of system performance. Internal drivers
with adaptive gate drive allow the highest efficiency with
the minimum external components.
A dual threshold enable pin, matched soft-start pins, and a
power good output are provided, allowing a high level of
control.
The MIC2150/1 are available in the small size 4mm×4mm
24-pin MLF ? package. The MIC2150/1 has a junction
operating range from –40 ° C to +125 ° C.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Applications
Features
? Dual Synchronous Buck Control IC with outputs
switching 180 degree out-of-phase
? 4.5V to 14.5V input voltage range
? Adjustable output voltages down to 0.7V
? 1% output voltage accuracy
? MIC2150: 500kHz PWM operation
? MIC2151: 300kHz PWM operation
? Adaptive gate drive allows efficiencies over 95%
? Adjustable current limit with no sense resistor
- Senses low-side MOSFET current
? Internal drivers allow 20A per phase
? Power Good output allow simple sequencing
? Dual threshold enable pin
? Independent programmable soft-start pins
? Output over-voltage protection
? Input UVLO
? Works with ceramic output capacitors
? Tiny 4mm×4mm 24-Pin MLF ? package
?
?
?
?
Multi-output power supplies with sequencing
DSP, FPGA, CPU and ASIC power supplies
Telecom and Networking equipment
Servers
? Junction temperature range of -40 ° C to +125 ° C
_________________________________________________________________________________________________________________________
Typical Application
Micro Lead Frame and MLF are registered trademarks of Amkor Technology, Inc.
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
August 2009
M9999-082809-A
(408) 944-0800
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2151 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:2-Phase Dual Output PWM Synchronous Buck Control IC |
| MIC2151YML | 制造商:Micrel 功能描述:Micrel MIC2151YML |
| MIC2155 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:2-Phase, Single Output, PWM Synchronous Buck Control IC |
| MIC2155_0911 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Two-Phase, Single-Output, PWM Synchronous Buck Control IC |
| MIC2155YML | 制造商:Micrel 功能描述:The Micrel MIC2155YML is a 50A Synchronous Buck Regulator. |
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