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MCP16331T-E/CH 数据手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
DC/DC转换器
封装:
SOT-23-6
描述:
MCP16331 异步降压转换器### 开关电压调节器，Microchip
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P11Hot
典型应用电路图在P2P18P26P27P28P29P30
原理图在P13
标记信息在P32
封装信息在P32P34P35P36P41
功能描述在P1P13
技术参数、封装参数在P4
应用领域在P1P2P18
电气规格在P4
导航目录
MCP16331T-E/CH数据手册
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2014 Microchip Technology Inc. DS20005308A-page 1
MCP16331
Features:
• Up to 96% Efficiency
• Input Voltage Range: 4.4V to 50V
• Output Voltage Range: 2.0V to 24V
• 2% Output Voltage Accuracy
• Integrated N-Channel Buck Switch: 600 m
• Minimum 500 mA Output Current Over All Input
Voltage Range (See
Figure 2-9 for Maximum
Output Current vs VIN)
•500 kHz Fixed Frequency
• Adjustable Output Voltage
• Low Device Shutdown Current
• Peak Current Mode Control
• Internal Compensation
• Stable with Ceramic Capacitors
• Internal Soft-Start
• Internal pull up on EN
• Cycle-by-Cycle Peak Current Limit
• Undervoltage Lockout (UVLO): 4.1V to Start;
3.6V to Stop
• Overtemperature Protection
• Available Package: 6-Lead SOT-23, 8-Lead 2x3
TDFN
Applications:
•PIC
®
MCU/dsPIC
®
DSC Microcontroller Bias
Supply
• 48V, 24V and 12V Industrial Input DC-DC
Conversion
• Set-Top Boxes
• DSL Cable Modems
• Automotive
• AC/DC Adapters
• SLA Battery Powered Devices
• AC-DC Digital Control Power Source
• Power Meters
•Consumer
• Medical and Health Care
• Distributed Power Supplies
General Description:
The MCP16331 is a highly integrated, high-efficiency,
fixed frequency, step-down DC-DC converter in a
popular 6-pin SOT-23 or 8-pin TDFN 2x3 package that
operates from input voltage sources up to 50V.
Integrated features include a high side switch, fixed
frequency Peak Current Mode Control, internal
compensation, peak current limit and overtemperature
protection. Minimal external components are
necessary to develop a complete step-down DC-DC
converter power supply.
High converter efficiency is achieved by integrating the
current-limited, low-resistance, high-speed N-Channel
MOSFET and associated drive circuitry. High switching
frequency minimizes the size of external filtering
components resulting in a small solution size.
The MCP16331 can supply 500 mA of continuous
current while regulating the output voltage from 2.0V to
24V. An integrated, high-performance peak current
mode architecture keeps the output voltage tightly
regulated, even during input voltage steps and output
current transient conditions that are common in power
systems.
The EN input is used to turn the device on and off.
While off, only a few µA of current are consumed from
the input for power shedding and load distribution
applications. This pin is internally pulled up, so the
device will start even if the EN pin is left floating.
Output voltage is set with an external resistor divider.
The MCP16331 is offered in a space saving 6-Lead
SOT-23 and 8-Lead 2x3 TDFN surface mount package.
Package Type
MCP16331
6-Lead SOT-23
MCP16331
8-Lead 2x3 TDFN*
V
FB
GND
EN
1
2
3
6
4
SW
BOOST
5
V
IN
NC
EN
NC
1
2
3
4
8
7
6
5
SW
EP
9
V
IN
BOOST
V
FB
GND
* Includes Exposed Thermal Pad (EP); see Table 3-1
High-Voltage Input Integrated Switch Step-Down Regulator
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