參數(shù)資料
型號： PM6670ATR
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： 1.4 A SWITCHING CONTROLLER, QCC24
封裝： 4 X 4 MM, LEAD FREE, VFQFN-24
文件頁數(shù)： 52/55頁
文件大?。?/td> 849K
代理商： PM6670ATR
Pin settings
PM6670
6/53
2.2
Pin description
Table 2. Pin functions
N°
Pin
Function
1
VTTGND
LDO Power Ground. Connect to negative terminal of VTT output capacitor.
2VTTSNS
LDO Remote Sensing. Connect as close as possible to the load via a low
noise PCB trace.
3DDRSEL
DDR Voltage Selector (if MODE is tied to VCC) or Pulse-Skip/No-Audible
Pulse-Skip Selector in Adjustable Mode (MODE voltage lower than 3V). See
4VTTREF
Low Noise Buffered DDR Reference Voltage. A 22nF (minimum) ceramic
bypass capacitor is required in order to achieve stability.
5SGND
Ground Reference for analog circuitry, control logic and VTTREF buffer.
Connect together with the thermal pad and VTTGND to a low impedance
ground plane. See the Application Note for details.
6AVCC
+5V Supply for internal logic. Connect to +5V rail through a simple RC
filtering network.
7VREF
High accuracy output Voltage Reference (1.237V) for multilevel pins setting.
It can deliver up to 50
A. Connect a 100nF capacitor between VREF and
SGND in order to enhance noise rejection.
8VOSC
Frequency Selection. Connect to the central tap of a resistor divider to set
the desired switching frequency. The pin cannot be left floating. See
9
VSNS
VDDQ Output Remote Sensing. Discharge path for VDDQ in Non-Tracking
Discharge. Input for internal resistor divider that provides VDDQ/2 to
VTTREF and VTT. Connect as close as possible to the load via a low noise
PCB trace.
10
MODE
Mode of operation selector. If MODE pin voltage is higher than 4V, the fixed
output mode is selected. If MODE pin voltage is lower than 4V, it is used as
negative input of the error amplifier. See Section 7.1.4: Mode-of-operation
11
COMP
DC Voltage Error Compensation Input for the switching section. Refer
12
DSCG
Discharge Mode Selection. Refer to Section 7.1.8: VDDQ output discharge
on page 33 for Tracking/Non-tracking Discharge or No-Discharge options.
13
S5
Switching Controller Enable. Connect to S5 system status signal to meet
S0-S5 power management states compliance. See Section : Power
14
S3
Linear Regulator Enable. Connect to S3 system status signal to meet S0-S5
power management states compliance. See Section : Power management
15
PG
Power-Good Signal (open drain output). High when VDDQ output voltage is
within ±10% of nominal value.
16
PGND
Power Ground for the switching section.
17
LGATE
Low-side Gate Driver Output.
相關(guān)PDF資料
PDF描述
PM6670 1.4 A SWITCHING CONTROLLER, QCC24
PM6675ASTR 3 A SWITCHING CONTROLLER, QCC24
PM6675AS 3 A SWITCHING CONTROLLER, QCC24
PM6675ATR SWITCHING CONTROLLER, QCC24
PM6675TR SWITCHING CONTROLLER, QCC24
相關(guān)代理商/技術(shù)參數(shù)
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