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參數(shù)資料
| 型號： | MIC2202BMM |
| 廠商： | MICREL INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | HIGH EFFICIENCY 2MHZ SYNCHRONOUS BUCK CONVERTER 1UP STABLE PWM REGULATOR |
| 中文描述： | 2.5 A SWITCHING REGULATOR, 2200 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | MSOP-10 |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 182K |
| 代理商： | MIC2202BMM |
May 2004
1
M9999-052104
MIC2202
Micrel
Typical Application
MIC2202
High Efficiency 2MHz Synchronous Buck
Converter 1
μ
F Stable PWM Regulator
General Description
The Micrel MIC2202 is a high efficiency 2MHz PWM synchro-
nous buck regulator. The fast 2MHz operation along with a
proprietary compensation scheme allows the smallest pos-
sible external components. The MIC2202 can operate with
a 1
μ
F ceramic output capacitor and a small, low DC-resis-
tance, 2.2
μ
H inductor, reducing system size and cost while
allowing a high level of efficiency.
The MIC2202 operates from 2.3V to 5.5V input and features
internal power MOSFETs that can supply over 600mA of
output current with output voltages down to 0.5V. The
MIC2202 implements a constant 2MHz pulse- width-modu-
lation (PWM) control scheme which reduces noise in sensi-
tive RF, audio, and communications applications. Addition-
ally, the MIC2202 can be synchronized to an external clock,
or multiple MIC2202s can easily be daisy-chained with the
SYNCLOCK feature.
The MIC2202 has a high bandwidth loop (up to 500kHz)
which allows ultra fast transient response times. This is very
useful when powering applications that require fast dynamic
response such as CPU cores and RF circuitry in high
performance cellular phones and PDAs.
The MIC2202 is available in 10-pin MSOP and 3mm
×
3mm
MLF-10L package options with an operating junction
temperature range from –40
°
C to +125
°
C .
Features
Input voltage range: 2.3V to 5.5V
Output down to 0.5V/600mA
2MHz PWM operation
Stable with 1
μ
F ceramic output capcitor.
Ultra-fast transient response (up to 500kHz GBW)
Internal compensation
All ceramic capacitors
>95% efficiency
Fully integrated MOSFET switches
Easily synchronized to external clock
SYNCLOCK feature to daisy chain multiple 2202s
Requires only 4 external components
1% line and load regulation
Logic controlled micropower shutdown
Thermal shutdown and current limit protection
10-pin MSOP and 3mm
×
3mm MLF-10L package
options
–40
°
C to +125
°
C junction temperature range
Applications
Cellular phones
PDAs
802.11 WLAN power supplies
FPGA/ASIC power supplies
Dynamically adjustable power supply for CDMA/W-
CDMA RF power amps
DSL modems
Tape drives
10nF
2.2
μ
H
V
3.3V
600mA
V
2.3V to 5.5V
1
μ
F
10k
1.78k
EN
6
5
1
SYNC_IN
SYNC_OUT
10
9
8
7
2
3
4
Adjustable Output Synchronous Buck Converter
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
MicroeadFrame and MLF are trademarks of Amkor Technology, Inc.
60
65
70
75
80
85
90
95
100
0
0.1
OUTPUT CURRENT (A)
0.2
0.3
0.4
0.5
0.6
E
Efficiency 3.3V
OUT
5V
IN
4.2V
IN
L = 2.2
μ
H
C
OUT
= 1
μ
F
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2202BMM TR | 功能描述:IC REG BUCK ADJ 0.6A 10MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:20 系列:SIMPLE SWITCHER® 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:12V 輸入電壓:4 V ~ 60 V PWM 型:電壓模式 頻率 - 開關:52kHz 電流 - 輸出:1A 同步整流器:無 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 包裝:管件 供應商設備封裝:16-DIP 其它名稱:*LM2575HVN-12LM2575HVN-12 |
| MIC2202YML | 功能描述:直流/直流開關調(diào)節(jié)器 2MHz Synchronous Buck Regulator - Lead Free RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MIC2202YML TR | 功能描述:直流/直流開關調(diào)節(jié)器 2MHz Synchronous Buck Regulator (Lead Free) RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MIC2202YML-TR | 功能描述:Buck Switching Regulator IC Positive Adjustable 0.5V 1 Output 600mA 10-VFDFN Exposed Pad, 10-MLF? 制造商:microchip technology 系列:- 包裝:剪切帶（CT） 零件狀態(tài):有效 功能:降壓 輸出配置:正 拓撲:降壓 輸出類型:可調(diào)式 輸出數(shù):1 電壓 - 輸入（最小值）:2.3V 電壓 - 輸入（最大值）:5.5V 電壓 - 輸出（最小值/固定）:0.5V 電壓 - 輸出（最大值）:5.5V 電流 - 輸出:600mA 頻率 - 開關:2MHz 同步整流器:是 工作溫度:-40°C ~ 125°C （TJ） 安裝類型:表面貼裝 封裝/外殼:10-VFDFN 裸露焊盤，10-MLF? 供應商器件封裝:10-MLF?（3x3） 標準包裝:1 |
| MIC2202YMM | 功能描述:直流/直流開關調(diào)節(jié)器 2MHz Synchronous Buck Regulator (Lead Free) RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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