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參數(shù)資料
| 型號： | MAX8667ETEAA+ |
| 廠商： | Maxim Integrated |
| 文件頁數(shù)： | 8/18頁 |
| 文件大?。?/td> | 388K |
| 描述： | IC REG QD BCK/LINEAR SYNC 16TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 100 |
| 拓?fù)洌?/td> | 降壓（降壓）同步（2），線性（LDO）（2） |
| 功能： | 任何功能 |
| 輸出數(shù)： | 4 |
| 頻率 - 開關(guān)： | 1.5MHz |
| 電壓/電流 - 輸出 1： | 1.2V，600mA |
| 電壓/電流 - 輸出 2： | 1.8V，1.2A |
| 電壓/電流 - 輸出 3： | 2.8V，300mA |
| 帶 LED 驅(qū)動器： | 無 |
| 帶監(jiān)控器： | 無 |
| 帶序列發(fā)生器： | 無 |
| 電源電壓： | 2.8 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 16-TQFN-EP（3x3） |
| 包裝： | 管件 |
1.5MHz Dual Step-Down DC-DC Converters
with Dual LDOs and Individual Enables
8 _______________________________________________________________________________________
Pin Description
NAME
PIN
MAX8667 MAX8668
FUNCTION
1
EN3 EN3
Enable Input for Regulator 3. Drive EN3 high or connect to IN34 to turn on regulator 3. Drive low
to turn off regulator 3 and reduce input quiescent current.
2 OUT3 OUT3
Output of Regulator 3. Bypass OUT3 with a 4.7礔 ceramic capacitor to GND. OUT3 is
discharged to GND through an internal 1k& in shutdown.
3
IN34 IN34
Input Voltage for LDO Regulators 3 and 4. Supply voltage range is from 1.7V to 5.5V. This
supply voltage must not exceed V
IN12
. Connect a 4.7礔 or larger ceramic capacitor from IN34
to ground.
4 OUT4 OUT4
Output of Regulator 4. Bypass OUT4 with a 4.7礔 ceramic capacitor to GND. OUT4 is
discharged to GND through an internal 1k& in shutdown.
5
EN4 EN4
Enable Input for Regulator 4. Drive EN4 high or connect to IN34 to turn on regulator 4. Drive low
to turn off regulator 4 and reduce input quiescent current.
6 GND GND Ground
7
REF REF Reference Output. Bypass REF with a 0.01礔 ceramic capacitor to GND.
8 OUT2 Feedback Input for Regulator 2. Connect OUT2 directly to the output of step-down regulator 2.
FB2
Feedback Input for Regulator 2. Connect FB2 to the center of a resistor feedback divider
between the output of regulator 2 and ground to set the output voltage. See the Setting the
Output Voltages and Voltage Positioning section.
9 PGND2 PGND2 Power Ground for Step-Down Regulator 2
10 LX2
LX2 Inductor Connection for Regulator 2
11 IN12 IN12
Input Voltage for Step-Down Regulators 1 and 2. Supply voltage range is from 2.6V to 5.5V. This
supply voltage must not be less than V
IN34
. Connect a 10礔 or larger ceramic capacitor from
IN12 to ground.
12 LX1
LX1 Inductor Connection for Regulator 1
13 PGND1 PGND1 Power Ground for Step-Down Regulator 1
14 OUT1 Feed b ack Inp ut for Reg ul ator 1. C
onnect OU T1 d i r
ectl y to the outp ut of step
- d
ow n r eg ul ator 1.
FB1
Feedback Input for Regulator 1. Connect FB1 to the center of a resistor feedback divider
between the output of regulator 1 and ground to set the output voltage. See the Setting the
Output Voltages and Voltage Positioning section.
15 EN1 EN1
E nab l e Inp ut for Reg ul ator
1. D r i ve E N 1 hi g h or connect to IN 12 to tur n on step - d ow
n r eg
ul
ator 1.
D r
i ve l ow to tur n off the r eg ul ator
and r ed uce i np ut q ui escent cur r ent.
16 EN2 EN2
E nab l e Inp ut for Reg ul ator
2. D r i ve E N 2 hi g h or connect to IN 12 to tur n on step - d ow
n r eg
ul
ator 2.
D r
i ve l ow to tur n off the r eg ul ator
and r ed uce i np ut q ui escent cur r ent.
EP
EP Exposed Paddle. Connect to GND, PGND1, PGND2, and circuit ground.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX8667ETEAA+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1.5MHz Dl Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| MAX8667ETEAA+T | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1.5MHz Dl Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| MAX8667ETEAB+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1.5MHz Dl Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| MAX8667ETEAB+T | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1.5MHz Dl Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| MAX8667ETEAC+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1.5MHz Dl Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
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