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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2MHz同步降壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 7/11頁 |
| 文件大?。?/td> | 112K |
| 代理商： | MIC2204 |
January 2004
7
M0214-012904
MIC2204
Functional Description
VIN
VIN provides power to the output and to the internal bias
supply. The supply voltage range is from 2.3V to 5.5V. A
minimum 1
μ
F ceramic is recommended for bypassing the
input supply.
Enable
The enable pin provides a logic level control of the output. In
the off state, supply current of the device is greatly reduced
(typically 6.5
μ
A). Also, in the off state, the output drive is
placed in a
“
tri-stated
”
condition, where both the high-side
P-Channel MOSFET and the low-side N-Channel are in an off
or non-conducting state. Do not drive the enable pin above
the supply voltage.
SYNC_IN
SYNC_IN enables the ability to change the fundamental
switching frequency. The SYNC_IN frequency has a mini-
mum frequency of 1.8MHz and a maximum sync frequency
of 2.5MHz.
Careful attention should be paid to not driving the SYNC_IN
pin greater than the supply voltage. While this will not damage
the device, it will cause improper operation.
Micrel
SYNC_OUT
Since SYNC_OUT is an open collector output that provides
a signal equal to the internal oscillator frequency, multiple
MIC2204s to be connected together in a master-slave con-
figuration for frequency matching of the converters. A typical
10k
is recommended for a pull-up resistor.
BIAS
The bias supply is an internal 2.3V linear regulator that
supplies the internal biasing voltage to the MIC2204. A 10nF
ceramic capacitor is required on this pin for bypassing. Do not
use the BIAS pin as a supply. The BIAS pin was designed to
supply internal power and not external circuitry.
Feedback
The feedback pin provides the control path to control the
output. A resistor divider connecting the feedback to the
output is used to adjust the desired output voltage. Refer to
the
“
Feedback
”
material in the
“
Applications Information
”
section for more detail.
10k
SYNC_IN
VIN
MIC2204
Master
SYNC_OUT
SW
BIAS
FB
SYNC_IN
VIN
MIC2204
Slave
SYNC_OUT
SW
BIAS
FB
Figure 1. SYNC_OUT
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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(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(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(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(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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