- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383585 > MCP1601 (Microchip Technology Inc.) 500 mA Synchronous BUCK Regulator PDF資料下載
參數(shù)資料
| 型號： | MCP1601 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 500 mA Synchronous BUCK Regulator |
| 中文描述： | 500毫安同步降壓穩(wěn)壓器 |
| 文件頁數(shù)： | 1/22頁 |
| 文件大小： | 585K |
| 代理商： | MCP1601 |
2003 Microchip Technology Inc.
DS21762A-page 1
M
MCP1601
Features
Input Range of 2.7V to 5.5V
3 Operating Modes: PWM, PFM and LDO
Integrated BUCK and Synchronous Switches
Ceramic or Electrolytic Input/Output Filtering
Capacitors
750 kHz Fixed Switching Frequency
Oscillator Synchronization to 1 MHz PWM Mode
Auto-Switching from PWM/PFM Operation
100% Duty Cycle Capable for Low Input Voltage
500 mA Continuous Output Current Capability
Integrated Under-Voltage Lock-Out Protection
Integrated Over-Temperature Protection
Integrated Soft Start Circuitry
Low Output Voltage Capability to 0.9V
Temperature Range: -40°C to +85oC
Small 8-Pin MSOP Package
Applications
Low Power Handheld CPUs and DSPs
Cellular Phones
Organizers and PDAs
Digital Cameras
+5V or +3.3V Distributed Voltages
USB Powered Devices
Package Type
Description
The MCP1601 is a fully integrated synchronous BUCK
(step down) DC/DC converter for battery powered sys-
tems. With an input operating range of 2.7V to 5.5V, the
MCP1601 is ideal for applications being powered by
one single cell Li-Ion, 2 to 3 cell NiMH, NiCd or alkaline
sources. Output voltages can range from 0.9V to V
IN
to
accommodate a wide range of applications. Efficiency
can exceed 92% while operating at 750 kHz with load
current capability up to 500 mA. The MCP1601 is used
to minimize space, cost and wasted energy.
The PWM mode switching frequency is internally set to
a fixed 750 kHz allowing the use of low profile, surface
mount inductors and ceramic capacitors while
maintaining a typical efficiency of 92%.
The MCP1601 is capable of three distinct operating
modes: PWM, PFM and Low Drop Out.
When operating in PWM (pulse width modulation)
mode, the DC/DC converter switches at a single high
frequency determined by either the internal 750 kHz
oscillator or external synchronization frequency.
For applications that operate at very light to no load for
extended periods of time, the MCP1601 is capable of
operating in PFM (pulse frequency modulation mode)
to reduce the number of switching cycles/sec and
consume less energy.
The third mode of operation (LDO mode) occurs when
the input voltage approaches the output voltage and the
BUCK duty cycle approaches 100%. The MCP1601 will
enter a low drop out mode and the high-side P-Channel
BUCK switch will saturate, providing the output with the
maximum voltage possible.
The MCP1601 has integrated over-current protection,
over-temperature protection and UVLO (Under Voltage
Lockout) to provide for a fail safe solution with no
external components.
The MCP1601 is available in the 8-pin MSOP package,
with an operating temperature range of -40°C to +85°C.
8-Pin MSOP
V
IN
SHDN
FB
A
GND
L
X
P
GND
V
OUT
SYNC/PWM
1
2
3
4
8
7
6
5
MCP1601
500 mA Synchronous BUCK Regulator
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MCP1603 | 2.0 MHz, 500 mA Synchronous Buck Regulator |
| MCP1612 | Single 1A, 1.4 MHz Synchronous Buck Regulator |
| MCP1630V | High-Speed, Microcontroller-Adaptable, Pulse Width Modulator |
| MCP1650REUN | MCP1650 |
| MCP1650SEUN | MCP1650 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCP1601_13 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:500 mA Synchronous BUCK Regulator |
| MCP1601EV | 功能描述:電源管理IC開發(fā)工具 MCP1601 Buck Reg Eval Brd RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MCP1601-I/MS | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 500mA Sych Buck RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MCP1601-I/MS | 制造商:Microchip Technology Inc 功能描述:BUCK CONVERTER SMD 1601 MSOP8 |
| MCP1601T-I/MS | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 500mA Sych Buck RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。