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參數(shù)資料
| 型號： | MIC2204 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | High-Efficiency 2MHz Synchronous Buck Converter |
| 中文描述： | 高效率高達(dá)2MHz同步降壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大?。?/td> | 112K |
| 代理商： | MIC2204 |
January 2004
1
M0214-012904
MIC2204
Micrel
Typical Application
MIC2204
High-Efficiency 2MHz Synchronous Buck Converter
General Description
The Micrel MIC2204 is a high-efficiency, 2MHz PWM syn-
chronous buck switching regulator. Power conversion effi-
ciency of above 95% is easily obtainable over a wide range
of applications. A proprietary internal compensation tech-
nique ensures stability with the smallest possible inductor
and ceramic output capacitor.
The MIC2204 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 1V. The MIC2204
implements a constant 2MHz pulse-width-modulation (PWM)
control scheme which reduces spurious noise in sensitive RF
and communication applications. Additionally, the MIC2204
can be synchronized to an external clock, or multiple MIC2204s
can easily be daisy-chained with the SYNCLOCK feature.
The MIC2204 has a high bandwidth loop (typ. 200kHz) which
allows ultra-fast transient response times. This is very useful
when powering applications that require fast dynamic re-
sponses, such as the CPU cores and RF circuitry in high-
performance cellular phones and PDAs.
The MIC2204 is available in 10-pin MSOP and 3mm
×
3mm
MLF-10L package options with an operating junction tem-
perature range from –40
°
C to 125
°
C .
Features
Input voltage range: 2.3V to 5.5V
Output down to 1V/ 600mA
2MHz PWM operation
Ultra-fast transient response (typical 200kHz GBW)
Internal compensation
All ceramic capacitors
>95% efficiency
Fully integrated MOSFET switches
Easily synchronized to external clock
SYNCLOCK feature to daisy-chain multiple 2204s
<340
μ
A quiescent current
Logic controlled micropower shutdown
Thermal shutdown and current limit protection
10-pin MSOP and 3mm
×
3mm MLF-10L
–40
°
C to +125
°
C junction temperature range
Applications
High-efficiency portable power
Cellular phones
PDAs
802.11 WLAN power supplies
RF power supplies
Li Ion battery powered applications
10nF
4.7
μ
H
3.3V
500mA
2.3V to 6V
4.7
μ
F
EN
6
5
1
SYNC_IN
SYNC_OUT
10
9
8
7
2
3
4
MIC2204BMM
Adjustable Output Synchronous Buck Converter
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
MLF and MicroeadFrame are trademarks of Amkor Technology, Inc.
50
55
60
65
70
75
80
85
90
95
100
0
100
OUTPUT CURRENT (mA)
200
300
400
500
E
Efficiency
vs. Output Current
3.6V
IN
4.2V
IN
3.3V
OUT
5V
IN
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MIC2204BML | High-Efficiency 2MHz Synchronous Buck Converter |
| MIC2204BMM | High-Efficiency 2MHz Synchronous Buck Converter |
| MIC2205-1.38YML | 2MHz PWM Synchronous Buck Regulator with LDO Standby Mode |
| MIC2205-1.3YML | 2MHz PWM Synchronous Buck Regulator with LDO Standby Mode |
| MIC2205-1.58YML | 2MHz PWM Synchronous Buck Regulator with LDO Standby Mode |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2204_05 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:High-Efficiency 2MHz Synchronous Buck Converter |
| MIC2204-10BMM | 功能描述:IC REG BUCK SYNC ADJ 0.6A 10MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(guān):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(yīng)商設(shè)備封裝:16-DIP 其它名稱:*LM2575HVN-12LM2575HVN-12 |
| MIC2204-10BMM TR | 功能描述:IC REG BUCK SYNC ADJ 0.6A 10MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(guān):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(yīng)商設(shè)備封裝:16-DIP 其它名稱:*LM2575HVN-12LM2575HVN-12 |
| MIC2204BML | 功能描述:IC REG BUCK SYNC ADJ 0.6A 10MLF RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(guān):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(yīng)商設(shè)備封裝:16-DIP 其它名稱:*LM2575HVN-12LM2575HVN-12 |
| MIC2204BML TR | 功能描述:IC REG BUCK SYNC ADJ 0.6A 10MLF RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(guān):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(yīng)商設(shè)備封裝:16-DIP 其它名稱:*LM2575HVN-12LM2575HVN-12 |
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