參數(shù)資料
型號(hào)： PM6680TR
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： 0.4 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32
封裝： 5 X 5 MM, 1 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, VFQFPN-32
文件頁(yè)數(shù)： 2/49頁(yè)
文件大?。?/td> 2931K
代理商： PM6680TR
Pin settings
PM6680
10/49
16
SGND2
Signal ground for analog circuitry. It must be connected to the signal ground
plan of the power supply.
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
(max) switch.
If V5SW is connected to GND, the LDO5 linear regulator is always on.
18
LDO5
5 V internal regulator output. It can provide up to 100mA peak current.
LDO5 pin supplies embedded low side gate drivers and an external load.
19
VIN
Device supply voltage input and battery voltage sense. A bypass filter (4
and 4.7
F) between the battery and this pin is recommended.
20
CSENSE1
Positive current sense input for the switching section 1. This pin must be
connected through a resistor to the drain of the synchronous rectifier
(RDSON sensing) to obtain a positive current limit threshold for the power
supply controller.
21
PHASE1
Switch node connection and return path for the high side driver for the
section 1.It is also used as negative current sense input.
22
HGATE1
High-side gate driver output for section 1. This is the floating gate driver
output.
23
BOOT1
Bootstrap capacitor connection for the switching section 1. It supplies the
high-side gate driver.
24
SKIP
Pulse skipping mode control input.
If the pin is connected to LDO5 the PWM mode is enabled.
If the pin is connected to GND, the pulse skip mode is enabled.
If the pin is connected to VREF the pulse skip mode is enabled but the
switching frequency is kept higher than 33 kHz (No-audible pulse skip
mode).
25
EN1
Enable input for the switching section 1.
The section 1 is enabled applying a voltage greater than 2.4 V to this pin.
The section 1 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.
26
PGOOD1
Power Good output signal for the section 1. This pin is an open drain output
and when the output of the switching section 1 is out of +/- 10 % of its
nominal value.It is pulled down.
27
PGOOD2
Power Good output signal for the section 2. This pin is an open drain output
and when the output of the switching section 2 is out of +/- 10 % of its
nominal value.It is pulled down.
28
FB1
Feedback input for the switching section 1. This pin is connected to a
resistive voltage-divider from OUT1 to PGND to adjust the output voltage
from 0.9 V to 5.5 V.
Table 4.
Pin functions (continued)
N°
Pin
Function
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PM6681A_08 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Dual synchronous step-down controller with adjustable LDO
PM6681ATR 功能描述:DC/DC 開(kāi)關(guān)控制器 DUAL STEP-DOWN CONTROLLER W/ADJ LDO RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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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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
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