参数资料
型号: TPS5431DDA
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 6 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8
封装: GREEN, PLASTIC, SOP-8
文件页数: 23/28页
文件大小: 810K
代理商: TPS5431DDA
www.ti.com
PIN ASSIGNMENTS
1
2
3
4
8
7
6
5
PowerPAD
(Pin9)
BOOT
NC
VSENSE
PH
VIN
GND
ENA
DDAPACKAGE
(TOPVIEW)
SLVS632C – JANUARY 2006 – REVISED NOVEMBER 2006
TERMINAL FUNCTIONS
TERMINAL
DESCRIPTION
NAME
NO.
BOOT
1
Boost capacitor for the high-side FET gate driver. Connect 0.01
F low ESR capacitor from BOOT pin to PH pin.
NC
2, 3
Not connected internally.
VSENSE
4
Feedback voltage for the regulator. Connect to output voltage divider.
ENA
5
On/off control. Below 0.5 V, the device stops switching. Float the pin to enable.
GND
6
Ground. Connect to PowerPAD.
Input supply voltage. Bypass VIN pin to GND pin close to device package with a high quality, low ESR ceramic
VIN
7
capacitor.
PH
8
Source of the high side power MOSFET. Connected to external inductor and diode.
PowerPAD
9
GND pin must be connected to the exposed pad for proper operation.
4
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