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參數(shù)資料
| 型號： | MP1580HS |
| 廠商： | MONOLITHIC POWER SYSTEMS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2A MP1580 Step Down Switch Mode Converter |
| 中文描述： | 3.6 A SWITCHING REGULATOR, 418 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數(shù)： | 2/4頁 |
| 文件大?。?/td> | 187K |
| 代理商： | MP1580HS |
EV0007
2A MP1580 Step Down
Switch Mode Converter
EVALUATION BOARD
Monolithic Power Systems
Figure 2: EV0007 Schematic
Power
Supply
- +
Board Operation
Sync
EN
L1
5 V
R2E
R2A
RC
C1
U1
MP1580HS
1
2
3
4
5
6
7
8
BS
IN
SW
GND
FB
COMP
EN
SYNC
J5
CC
R2D
R1
J3
VIN=4.75V to 25V
GND
CN2
1
2
3
4
1.8 V
C4
J6
1.22 V
CB
J1
3.3 V
2.5 V
CN1
1
2
3
4
J2
1.5 V
R2B
CCA
J4
D1
R2C
VOUT
GND
Available Output Voltages (VOUT)
External
External
Load
This board is laid out to accommodate most commonly used Inductors and Output Capacitors and to
be programmed for most standard Output Voltages.
1)
Attach positive end of load to pin 1 = 2 and negative end of load to pin 3 = 4 of connector CN2.
2)
For the required output voltage (VOUT = 1.22, 1.5, 1.8, 2.5, 3.3 or 5V) solder blob the appropriate
J1 thru J6 jumper respectively.
3)
Attach input voltage (VIN) and input ground (GND) to Pin 1 and 2 of connector CN1 respectively.
Note VIN must be 4.75V < VIN < 25V.
4)
Pin 3 of CN1 is used to synchronize the internal oscillator frequency of the MP1580 to an external
source. The synchronization rate can be vary from 380KHZ (normal operation) to 600KHz. There
is an internal 11K
pull down resistor to GND
therefore leave this pin unconnected if unused.
5)
Applying a voltage greater than 2.495V to pin 4 of CN1 enables the MP1580.
Leave the input
unconnected if unused
. An Under Voltage Lockout (UVLO) function can be implemented by the
addition of a resistor divider from VIN to GND.
For complete low current shutdown its needs
to be less than 0.7V.
EV0007 Rev 1.5_08/14/02
www.monolithicpower.com
2
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MP1580HS-LF | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 2A 380kHz Step-Down Converter 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 |
| MP1580HS-LF-Z | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 2A 380kHz RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| MP1582EN-LF | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 2A 1.5MHz 28V Nonsync 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 |
| MP1582EN-LF-Z | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 2A 1.5MHz 28V Nonsync 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 |
| MP1583 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DC_DC Step Down Converter 3A, 23V 美國MPS公司 |
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