- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄371133 > MP2305 (Monolithic Power Systems, Inc.) 2A, 23V Synchronous Rectified Step-Down Converter PDF資料下載
參數(shù)資料
| 型號(hào)： | MP2305 |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | 2A, 23V Synchronous Rectified Step-Down Converter |
| 中文描述： | 甲，為23V同步整流降壓轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 5/10頁(yè) |
| 文件大?。?/td> | 305K |
| 代理商： | MP2305 |
MP2305 – 2A, 23V SYNCHRONOUS RECTIFIED, STEP-DOWN CONVERTER
MP2305 Rev. 1.7
4/17/2006
www.MonolithicPower.com
5
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
TM
OPERATION
FUNCTIONAL DESCRIPTION
The MP2305 is a synchronous rectified,
current-mode, step-down regulator. It regulates
input voltages from 4.75V to 23V down to an
output voltage as low as 0.923V, and supplies
up to 2A of load current.
The MP2305 uses current-mode control to
regulate the output voltage. The output voltage
is measured at FB through a resistive voltage
divider and amplified through the internal
transconductance error amplifier. The voltage at
the COMP pin is compared to the switch current
measured internally to control the output
voltage.
The
MOSFET switches to step-down the input
voltage to the regulated output voltage. Since
the high side MOSFET requires a gate voltage
greater than the input voltage, a boost capacitor
connected between SW and BS is needed to
drive the high side gate. The boost capacitor is
charged from the internal 5V rail when SW is low.
converter
uses
internal
N-Channel
When the MP2305 FB pin exceeds 20% of the
nominal regulation voltage of 0.923V, the over
voltage comparator is tripped and the COMP
pin and the SS pin are discharged to GND,
forcing the high-side switch off.
MP2305_F01_BD01
INTERNAL
REGULATORS
IN
EN
+
ERROR
AMPLIFIER
1.2V
EN OK
OVP
RAMP
CLK
0.923V
0.3V
CURRENT
COMPARATOR
CURRENT
SENSE
AMPLIFIER
1.1V
SHUTDOWN
COMPARATOR
LOCKOUT
COMPARATOR
7
COMP
6
SS
8
FB
5
GND
4
OSCILLATOR
100/340KHz
S
R
Q
SW
3
BS
1
IN
5V
2
OVP
IN < 4.10V
5V
+
Q
+
+
1.5V
2.5V
+
+
+
+
EN
--
--
--
--
--
--
--
Figure 1—Functional Block Diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MP2307 | 3A, 23V, 340KHz Synchronous Rectified Step-Down Converter |
| MP2307DN | 3A, 23V, 340KHz Synchronous Rectified Step-Down Converter |
| MP2307_06 | 3A, 23V, 340KHz Synchronous Rectified Step-Down Converter |
| MP2309 | 1A, 23V, 340KHz Synchronous Step-Down Converter Evaluation Board |
| MP4009 | Silicon PNP Triple Diffused Type (Four Darlington Power Transistors in One) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MP2305DS | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:2A, 23V Synchronous Rectified Step-Down Converter |
| MP2305DS-LF | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 2A/23V Synch 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 |
| MP2305DS-LF-Z | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 2A/23V Synch 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 |
| MP2307 | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:3A, 23V, 340KHz Synchronous Rectified Step-Down Converter |
| MP2307_06 | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:3A, 23V, 340KHz Synchronous Rectified Step-Down Converter |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。