参数资料
| 型号： | MIC2124YMM TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM CM 10-MSOP |
| 产品培训模块： | MIC2124 Synchronous Current Mode DC-DC Buck Controller |
| 标准包装： | 2,500 |
| 系列： | Hyper Speed Control™ |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 360kHz |
| 占空比： | 93% |
| 电源电压： | 3 V ~ 5.5 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 ~ 85°C |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 包装： | 带卷 (TR) |
MIC2124
Constant Frequency, Synchronous
Current Mode Buck Controller
Hyper Speed Control? Family
General Description
Features
stable
Any Capacitor
The Micrel MIC2124 is a member of the Hyper Speed
Contro?l family of DC-DC controllers. It uses an adaptive
on-time current mode control scheme and operates at a
constant frequency.
The MIC2124 operates over a supply range of +3V to
+18V, and is independent of the IC supply voltage V IN . It
operates at a fixed 300kHz switching frequency and can
be used to provide up to 25A of output current. The output
voltage is adjustable down to +0.8V.
The MIC2124 includes an EN/COMP pin that can be
pulled low to shut down the converter. The MIC2124
optimizes performance and ensures stability with external
compensation.
The UVLO is provided to ensure proper operation under
power-sag conditions and to make sure that the external
power MOSFET has enough voltage to work with. An
internal digital soft-start ensures reduced inrush current.
Cycle-by-cycle current limiting ensures FET protection.
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+3V to +18V input voltage
25A output current capability
TM
- Zero ESR to high ESR
Output down to 0.8V with ±1% FB accuracy
Up to 94% efficiency
300kHz switching frequency
All N-Channel MOSFET design
Shutdown feature with EN/COMP
No current-sense resistor needed
Internal 4ms digital soft-start
Thermal shutdown
Pre-bias output safe
Cycle-by-Cycle foldback current-limit protection
10-pin MSOP package
–40 o C to +125 o C junction temperature range
The MIC2124 is available in a 10-pin MSOP package with
a junction temperature operating range from –40 o C to
+125 o C.
Applications
? Printers and scanners
? Graphic and video cards
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PCs and servers
Microprocessor core supply
Low-voltage distributed power
Telecommunication and networking
Set-top box, gateways and router
Typical Application
12V to 3.3V Efficiency
100
90
80
70
60
V HSD = 12V
V IN = 5V
MIC2124 Adjustable Output 300kHz Buck Converter
0
2
4 6 8
O UT PUT CURRENT (A)
10
Hyper Speed Control and Any Capacitor are trademarks of Micrel, 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
June 2010
M9999-060810-D
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相关代理商/技术参数 |
参数描述 |
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| MIC2130 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:High Voltage Synchronous Buck Control IC with Low EMI Option |
| MIC2130-1YML | 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: |
| MIC2130-1YML TR | 功能描述:DC/DC 开关控制器 High Voltage Synchronous Buck Control IC 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 |
| MIC2130-1YML-TR | 功能描述:Buck Regulator Positive Output Step-Down DC-DC Controller IC 16-MLF? (4x4) 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:停产 输出类型:晶体管驱动器 功能:降压 输出配置:正 拓扑:降压 输出数:1 输出阶段:1 电压 - 电源（Vcc/Vdd）:8 V ~ 40 V 频率 - 开关:150kHz 占空比（最大）:0.92 同步整流器:是 时钟同步:无 串行接口:- 控制特性:限流，使能，电源良好，软启动 工作温度:-40°C ~ 125°C （TJ） 封装/外壳:16-VQFN 裸露焊盘，16-MLF? 供应商器件封装:16-MLF?（4x4） 标准包装:1 |
| MIC2130-1YTSE | 功能描述:DC/DC 开关控制器 High Voltage Synchronous Buck Control IC 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 |
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