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參數資料
| 型號： | MCP1603 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 2.0 MHz, 500 mA Synchronous Buck Regulator |
| 中文描述： | 2.0兆赫，500毫安同步降壓穩壓器 |
| 文件頁數： | 1/26頁 |
| 文件大小： | 672K |
| 代理商： | MCP1603 |
2007 Microchip Technology Inc.
DS22042A-page 1
MCP1603
Features
Over 90% Typical Efficiency
Output Current Up To 500 mA
Low Quiescent Current = 45 μA, typical
Low Shutdown Current = 0.1 μA, typical
Adjustable Output Voltage:
- 0.8V to 4.5V
Fixed Output Voltage:
- 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V
2.0 MHz Fixed-Frequency PWM (Heavy Load)
Automatic PWM to PFM Mode Transition
100% Duty Cycle Operation
Internally Compensated
Undervoltage Lockout (UVLO)
Overtemperature Protection
Space Saving Packages:
- 5-Lead TSOT
- 8-Lead 2X3 DFN
Applications
Cellular Telephones
Portable Computers
Organizers / PDAs
USB Powered Devices
Digital Cameras
Portable Equipment
+5V or +3.3V Distributed Systems
General Description
The MCP1603 is a high efficient, fully integrated
500 mA synchronous buck regulator whose 2.7V to
5.5V input voltage range makes it ideally suited for
applications powered from 1-cell Li-Ion or 2-cell/3-cell
NiMH/NiCd batteries.
At heavy loads, the MCP1603 operates in the 2.0 MHz
fixed frequency PWM mode which provides a low
noise, low output ripple, small-size solution. When the
load is reduced to light levels, the MCP1603
automatically changes operation to a PFM mode to
minimize quiescent current draw from the battery. No
intervention is necessary for a smooth transition from
one mode to another. These two modes of operation
allow the MCP1603 to achieve the highest efficiency
over the entire operating current range.
The MCP1603 is available with either an adjustable or
fixed output voltage. The available fixed output voltage
options are 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. When a
fixed option is used, only three additional small external
components are needed to form a complete solution.
Couple this with the low profile, small-foot print
packages and the entire system solution is achieved
with minimal size.
Additional
overtemperature, and overcurrent protection.
protection
features
include:
UVLO,
Package Types
1
2
3
4
5
L
X
V
FB
/V
OUT
SHDN
GND
V
IN
5-Lead TSOT
MCP1603
1
2
3
4
5
L
X
V
FB
/V
OUT
SHDN
GND
V
IN
MCP1603L
1
2
3
4
8
7
6
5
L
X
V
FB
/V
OUT
SHDN
GND
V
IN
NC
NC
NC
8-Lead 2x3 DFN
2.0 MHz, 500 mA Synchronous Buck Regulator
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MCP1603_12 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:2.0 MHz, 500 mA Synchronous Buck Regulator |
| MCP1603-080I/MC | 制造商:Microchip Technology Inc 功能描述:2.0MHZ, 0.5A, SYNCH-BUCK PFM/PWM REG - Rail/Tube |
| MCP1603-080I/OS | 制造商:Microchip Technology Inc 功能描述:2.0MHZ, 0.5A, SYNCH-BUCK PFM/PWM REG - Rail/Tube |
| MCP1603-120I/MC | 功能描述:開關變換器、穩壓器與控制器 2.0MHz 0.5A SyncBuck PFM PWM Reg 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 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MCP1603-120I/OS | 制造商:Microchip Technology Inc 功能描述:CONV DC-DC SGL-OUT STEP DOWN 5PIN TSOT - Rail/Tube |
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