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参数资料
| 型号： | MP2562DS-LF |
| 厂商： | MONOLITHIC POWER SYSTEMS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, 4800 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | ROHS COMPLIANT, MS-012AA, SOIC-8 |
| 文件页数： | 18/20页 |
| 文件大小： | 563K |
| 代理商： | MP2562DS-LF |
MP2562 – 1A, 4MHz, 50V STEP-DOWN CONVERTER
MP2562 Rev. 0.91
www.MonolithicPower.com
7
4/5/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2010 MPS. All Rights Reserved.
BLOCK DIAGRAM
--
+
--
+
SS time
Gm Error Amp
SS
2.6V
5V
ISW
COMP
ISW
VIN
BST
SW
GND
FREQ
COMP
FB
EN
SS
0V8
REFERENCE UVLO/
THERMAL
SHUTDOWN
INTERNAL
REGULATORS
OSCILLATOR
--
+
SW
--
+
Level
Shift
CLK
VOUT
VIN
VOUT
Figure 1—Functional Block Diagram
OPERATION
The
MP2562
is
a
variable
frequency,
non-synchronous,
step-down
switching
regulator with an integrated high-side high
voltage power MOSFET. It provides a single
highly efficient solution with current mode
control for fast loop response and easy
compensation. It features a wide input voltage
range, internal soft-start control and precision
current limiting. Its very low operational
quiescent current makes it suitable for battery
powered applications.
PWM Control
At moderate to high output current, the MP2562
operates in a fixed frequency, peak current
control mode to regulate the output voltage. A
PWM cycle is initiated by the internal clock. The
power MOSFET is turned on and remains on
until its current reaches the value set by the
COMP voltage. When the power switch is off, it
remains off for at least 100ns before the next
cycle starts. If, in one PWM period, the current
in the power MOSFET does not reach the
COMP set current value, the power MOSFET
remains on, saving a turn-off operation.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MP2562DS-LF-Z | 功能描述:开关变换器、稳压器与控制器 1A/50V, 4MHz Non-sync Buck RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| MP2565DN-LF | 功能描述:开关变换器、稳压器与控制器 2.5A, 4MHz, 50V Step-Down Converter RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| MP2565-DN-LF-Z | 制造商:Monolithic Power Systems 功能描述:2.5A, 4MHZ, 50V STEP-DOWN CONVERTER, - Bulk |
| MP2565DN-LF-Z | 功能描述:开关变换器、稳压器与控制器 2.5A, 4MHz, 50V Step-Down Converter RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| MP2565DQ-LF-P | 功能描述:开关变换器、稳压器与控制器 2.5A, 4MHz, 50V Step-Down Converter RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
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