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參數(shù)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(wěn)壓器 |
| 文件頁數(shù)： | 11/26頁 |
| 文件大?。?/td> | 672K |
| 代理商： | MCP1603 |
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2007 Microchip Technology Inc.
DS22042A-page 11
MCP1603
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in
Table 3-1
.
TABLE 3-1:
PIN FUNCTION TABLE
3.1
Power Supply Input Voltage Pin
(V
IN
)
Connect the input voltage source to V
IN
. The input
source must be decoupled to GND with a 4.7 μF
capacitor.
3.2
Ground Pin (GND)
Ground pin for the device. The loop area of the ground
traces should be kept as minimal as possible.
3.3
Shutdown Control Input Pin
(SHDN)
The SHDN pin is a logic-level input used to enable or
disable the device. A logic high (> 45% of V
IN
) will
enable the regulator output. A logic-low (< 15% of V
IN
)
will ensure that the regulator is disabled.
3.4
Feedback / Output Voltage Pin
(V
FB
/V
OUT
)
For adjustable output options, connect the center of the
output voltage divider to the V
FB
/V
OUT
pin. For fixed-
output voltage options, connect the output directly to
the V
FB
/V
OUT
pin.
3.5
Switch Node, Buck Inductor
Connection Pin (L
X
)
Connect the L
X
pin directly to the buck inductor. This
pin carries large signal-level current; all connections
should be made as short as possible.
3.6
Exposed Metal Pad (EP)
For the DFN package, connect the Exposed Pad to
GND, with vias into the GND plane. This connection to
the GND plane will aid in heat removal from the
package.
Pin No.
Symbol
Description
MCP1603
TSOT23
MCP1603L
TSOT23
2x3 DFN
1
2
3
4
5
—
—
4
2
1
5
3
—
—
7
8
3
4
1
V
IN
GND
SHDN
V
FB
/V
OUT
L
X
NC
EP
Power Supply Input Voltage Pin
Ground Pin
Shutdown Control Input Pin
Feedback / Output Voltage Pin
Switch Node, Buck Inductor Connection Pin
No Connect
For the DFN package, the center exposed pad is a thermal
path to remove heat from the device. Electrically this pad is at
ground potential and should be connected to GND
2, 5, 6
Exposed
Pad
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| 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(guān)變換器、穩(wěn)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(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 |
| 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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