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參數(shù)資料
| 型號： | PM6681ATR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.4 A DUAL SWITCHING CONTROLLER, QCC32 |
| 封裝： | 5 X 5 MM, 1 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, VFQFPN-32 |
| 文件頁數(shù)： | 44/47頁 |
| 文件大?。?/td> | 2762K |
| 代理商： | PM6681ATR |
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Pin settings
PM6681A
6/47
4EN2
Enable input for the switching section 2.
– The section 2 is enabled applying a voltage greater than 2.4 V to this pin.
– The section 2 is disabled applying a voltage lower than 0.8 V.
When the section is disabled the high side gate driver goes low and Low
Side gate driver goes high. If both EN1 and EN2 pins are low and SHDN pin
is high the device enters in standby mode.
5
SHDN
Shutdown control input.
– The device switch off if the SHDN voltage is lower than the device off
threshold (shutdown mode)
– The device switch on if the SHDN voltage is greater than the device on
threshold.
The SHDN pin can be connected to the battery through a voltage divider to
program an undervoltage lockout. In shutdown mode, the gate drivers of the
two switching sections are in high impedance (high-Z).
6FB2
Feedback input for the switching section 2 This pin is connected to a
resistive voltage-divider from OUT2 to PGND to adjust the output voltage
from 0.9 V to 3.3 V.
7LDO
Adjustable internal regulator output. It can be set from 0.9 V to 3.3 V.
LDO pin can provide a 100 mA peak current.
8OUT2
Output voltage sense for the switching section 2. This pin must be directly
connected to the output voltage of the switching section.
9BOOT2
Bootstrap capacitor connection for the switching section 2. It supplies the
high-side gate driver.
10
HGATE2
High-side gate driver output for section 2. This is the floating gate driver
output.
11
PHASE2
Switch node connection and return path for the high side driver for the
section 2. It is also used as negative current sense input.
12
CSENSE2
Positive current sense input for the switching section 2. This pin must be
connected through a resistor to the drain of the synchronous rectifier
(RDS(on) sensing) to obtain a positive current limit threshold for the power
supply controller.
13
LGATE2
Low-side gate driver output for the section 2.
14
PGND
Power ground. This pin must be connected to the power ground plan of the
power supply.
15
LGATE1
Low-side gate driver output for the section 1.
16
LDO FB
Feedback input for the adjustable internal linear regulator. This pin is
connected to a resistive voltage-divider from LDO to SGND to adjust the
output voltage from 0.9 V to 3.3 V.
17
V5SW
Internal 5 V regulator bypass connection.
– If V5SW is connected to OUT5 (or to an external 5 V supply) and V5SW is
greater than 4.9 V, the LDO5 regulator shuts down and the LDO5 pin is
directly connected to OUT5 through a 3 W (max) switch.
If V5SW is connected to GND, the LDO5 linear regulator is always on if the
device is not in shutdown mode.
Table 2.
Pin functions (continued)
N°
Pin
Function
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PM6685 | 功能描述:DC/DC 開關(guān)控制器 Dual Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| PM6685_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Dual step-down main supply controller with auxilary voltages for notebook system power |
| PM6685TR | 功能描述:DC/DC 開關(guān)控制器 Monolithic VR RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| PM6686 | 制造商:STMicroelectronics 功能描述: |
| PM6686TR | 功能描述:DC/DC 開關(guān)控制器 Step-down Controller w/adj. voltages-dual RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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