- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377969 > ML4790 (Fairchild Semiconductor Corporation) Adjustable Output, Low Ripple Boost Regulator(輸出可調(diào)、小波紋升壓穩(wěn)壓器) PDF資料下載
參數(shù)資料
| 型號(hào)： | ML4790 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Adjustable Output, Low Ripple Boost Regulator(輸出可調(diào)、小波紋升壓穩(wěn)壓器) |
| 中文描述： | 可調(diào)輸出，低紋波升壓穩(wěn)壓器（輸出可調(diào)，小波紋升壓穩(wěn)壓器） |
| 文件頁(yè)數(shù)： | 1/10頁(yè) |
| 文件大?。?/td> | 192K |
| 代理商： | ML4790 |
July 2000
ML4790
*
Adjustable Output, Low Ripple Boost Regulator
F E A T U R IN G
Extended Commercial Temperature Range
for Portable Handheld Equipment
BLOCK DIAGRAM
1
GENERAL DESCRIPTION
The ML4790 is a high efficiency, PFM (Pulse Frequency
Modulation), boost switching regulator connected in
series with an integrated LDO (Low Dropout Regulator)
that incorporates “Silent Switcher” technology. This
technique incorporates a patented tracking scheme to
minimize the voltage drop across the LDO and increase
the total efficiency of the regulator beyond that which can
be obtained by using a discrete external LDO regulator.
The ML4790 is designed to convert single or multiple cell
battery inputs to regulated output voltages for integrated
circuits and is ideal for portable communications
equipment that cannot tolerate the output voltage ripple
normally associated with switching regulators.
An integrated synchronous rectifier eliminates the need for
an external Schottky diode and provides a lower forward
voltage drop, resulting in higher conversion efficiency.
(* Indicates Part is End Of Life as Of July 1, 2000)
FEATURES
I
Incorporates “Silent Switcher” technology to deliver
very low output voltage ripple (typically 5mV)
I
Guaranteed full load start-up and operation at 1.0V
input and low operating quiescent current (<100
μ
A)
for extended battery life
I
Pulse Frequency Modulation and internal synchronous
rectification for high efficiency
I
Minimum external components
I
Low ON resistance internal switching MOSFETs
I
Adjustable output voltage (2.5V to 5.5V)
Patent Pending
*Optional
BOOST
CONTROL
4
8
2
1
6
L1
SHDN
V
IN
GND
FEEDBACK
V
L
+
–
V
OUT
PWR
GND
FROM
POWER
MANAGEMENT
*C
IN
V
BAT
7
LDO
CONTROL
5
V
BOOST
C2
V
OUT
3
SENSE
R
1
R
2
C
OUT
V
OUT
C
FB
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ML4800IP | PCIe-to-PCI-X Reversible Bridge |
| ML4800IS | Power Factor Correction and PWM Controller Combo |
| ML4800CP | Power Factor Correction and PWM Controller Combo |
| ML4800CS | Power Factor Correction and PWM Controller Combo |
| ML4800 | Power Factor Correction and PWM Controller Combo(功率因數(shù)校正器和PWM控制器組合芯片) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ML4790 / 4890 WAF UP | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| ML4790CS | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ML4790ES | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Adjustable Output, Low Ripple Boost Regulator |
| ML-47F15 | 制造商:Polycase 功能描述:Enclosure;Flanged;PanelMnt;Polycarbonate,UL94VO;Gray;7.63x4.63x3.09 In;ML Series |
| ML-47F1508 | 制造商:Polycase 功能描述:Enclosure;Flanged;Polycarbonate,UL94VO;Gray;7.63x4.63x3.09In;ClearCover;MLSeries |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。