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參數(shù)資料
| 型號： | EV2365DN-00A |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | 3A, 28V, 1.4MHz Step-Down Converter |
| 中文描述： | 第3A，28V的，1.4MHz的降壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 5/11頁 |
| 文件大?。?/td> | 397K |
| 代理商： | EV2365DN-00A |
MP2365 – 3A, 28V, 1.4MHz STEP-DOWN CONVERTER
MP2365 Rev. 0.91
7/10/2006
www.MonolithicPower.com
5
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
OPERATION
The MP2365 is a current-mode step-down
regulator. It regulates input voltages from 4.75V to
28V down to an output voltage as low as 0.92V,
and is able to supply up to 3A of load current.
The MP2365 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 error
amplifier.
The
output
transconductance error amplifier is presented at
COMP where a network compensates the
regulation control system. The voltage at COMP
is compared to the switch current measured
internally to control the output voltage.
current
of
the
The converter uses an internal N-Channel
MOSFET switch to step-down the input voltage
to the regulated output voltage. Since the
MOSFET requires a gate voltage greater than
the input voltage, a boost capacitor connected
between SW and BS drives the gate. The
capacitor is internally charged while SW is low.
An internal 10
switch from SW to GND is used
to insure that SW is pulled to GND when SW is
low
to
fully
charge
the
BS
.
capa
LOCKOUT
COMPARATOR
ERROR
AMPLIFIER
FREQUENCY
FOLDBACK
COMPARATOR
INTERNAL
REGULATORS
1.8V
SLOPE
COMP
CLK
CURRENT
COMPARATOR
CURRENT
SENSE
AMPLIFIER
SHUTDOWN
COMPARATOR
COMP
6
IN
2
EN
7
GND
4
SS
8
OSCILLATOR
220KHz/
1.5MHz
S
R
Q
SW
3
BS
1
5V
+
Q
1.2V
+
+
2.60V/
2.39V
+
0.92V
0.6V
+
+
FB
5
--
--
--
--
--
--
Figure 1—Functional Block Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EV2365DN-01A | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:3A, 28V, 1.4MHz Step-Down Converter Evaluation Board |
| EV24-0.5-02-44M | 功能描述:共模濾波器/扼流器 44mH 0.5A - VERTICAL COMMN-MODE SPPRESSN RoHS:否 制造商:TDK 電感: 阻抗:35 Ohms 容差: 最大直流電流:0.1 A 最大直流電阻:1.5 Ohms 自諧振頻率: Q 最小值: 工作溫度范圍:- 25 C to + 85 C 端接類型:SMD/SMT 封裝 / 箱體:0302 (0806 metric) 系列:TCE |
| EV24-0.5-02-44M-1 | 功能描述:共模濾波器/扼流器 44mH 0.5A - VERTICAL COMMN-MODE SPPRESSN RoHS:否 制造商:TDK 電感: 阻抗:35 Ohms 容差: 最大直流電流:0.1 A 最大直流電阻:1.5 Ohms 自諧振頻率: Q 最小值: 工作溫度范圍:- 25 C to + 85 C 端接類型:SMD/SMT 封裝 / 箱體:0302 (0806 metric) 系列:TCE |
| EV24-0.8-02-18M | 功能描述:共模濾波器/扼流器 18mH 0.8A - VERTICAL COMMN-MODE SPPRESSN RoHS:否 制造商:TDK 電感: 阻抗:35 Ohms 容差: 最大直流電流:0.1 A 最大直流電阻:1.5 Ohms 自諧振頻率: Q 最小值: 工作溫度范圍:- 25 C to + 85 C 端接類型:SMD/SMT 封裝 / 箱體:0302 (0806 metric) 系列:TCE |
| EV2400 | 功能描述:界面開發(fā)工具 EV2400 Eval Mod Interface Board RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
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