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參數(shù)資料
| 型號： | MIC2202YMM |
| 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： | LEAD FREE, MSOP-10 |
| 文件頁數(shù)： | 16/19頁 |
| 文件大?。?/td> | 565K |
| 代理商： | MIC2202YMM |
Micrel, Inc.
MIC2202
March 2007
6
M9999-031907
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 1F 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 <1A). 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 pin enables the ability to change the funda-
mental switching frequency. The Sync_In frequency has
a minimum frequency of 1.6MHz 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 can cause improper
operation.
Sync_Out
Sync_Out is an open collector output that provides a
signal equal to the internal oscillator frequency. This
creates the ability for multiple MIC2202s to be connected
together in a master-slave configuration 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 MIC2202. 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 only.
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 section in the “Applications Information”
for more detail.
SYNC_IN
VIN
MIC2202
“Master”
SYNC_OUT
SW
BIAS
FB
SYNC_IN
VIN
MIC2202
“Slave”
SYNC_OUT
SW
BIAS
FB
Figure 1. Master-Slave Operation
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相關代理商/技術參數(shù) |
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| MIC2202YMM TR | 功能描述:直流/直流開關調節(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 |
| MIC2203 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:High Efficiency 1MHz Synchronous Buck Regulator |
| MIC2203BML | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:High Efficiency 1MHz Synchronous Buck Regulator |
| MIC2203BML TR | 功能描述:IC REG BUCK ADJ 0.3A 10MLF 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 |
| MIC2203BMM | 功能描述:IC REG BUCK ADJ 0.3A 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 |
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