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参数资料
| 型号： | TPS5450MDDAREP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 11.7 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | GREEN, PLASTIC, SOIC-8 |
| 文件页数： | 19/24页 |
| 文件大小： | 772K |
| 代理商： | TPS5450MDDAREP |
PIN ASSIGNMENTS
1
2
3
4
8
7
6
5
PowerPAD
(Pin9)
BOOT
NC
VSENSE
PH
VIN
GND
ENA
DDAPACKAGE
(TOPVIEW)
SLVS935 – JULY 2009 ....................................................................................................................................................................................................... www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
TJ = –55°C to 125°C, VIN = 5.5 V to 36 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
OUTPUT MOSFET
VIN = 5.5 V
150
rDS(on)
High-side power MOSFET switch
m
110
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
No internal connection
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 thermal pad.
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
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s): TPS5450-EP
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