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參數資料
| 型號： | TPS54519RTER |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 8 A SWITCHING REGULATOR, 2000 kHz SWITCHING FREQ-MAX, PQCC16 |
| 封裝： | 3 X 3 MM, GREEN, PLASTIC, WQFN-16 |
| 文件頁數： | 29/33頁 |
| 文件大小： | 1269K |
| 代理商： | TPS54519RTER |
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PWRGD
BOOT
PH
R
T
EN
AGND
VIN
VSENSE
COMP
15
14
13
GND
12
11
10
9
8
7
6
5
16
GND
VIN
PH
1
2
3
4
SS/TR
Thermal
Pad
(17)
QFN16
RTE PACKAGE
(TOP VIEW)
SLVSAT3
– SEPTEMBER 2011
DEVICE INFORMATION
PIN CONFIGURATION
PIN FUNCTIONS
PIN
DESCRIPTION
NAME
NO.
AGND
5
Analog Ground should be electrically connected to GND close to the device.
BOOT
13
A bootstrap capacitor is required between BOOT and PH. If the voltage on this capacitor is below the minimum
required by the BOOT UVLO, the output is forced to switch off until the capacitor is refreshed.
COMP
7
Error amplifier output, and input to the output switch current comparator. Connect frequency compensation
components to this pin.
EN
15
Enable pin, internal pull-up current source. Pull below 1.18 V to disable. Float to enable. Can be used to set the
on/off threshold (adjust UVLO) with two additional resistors.
GND
3, 4
Power Ground. This pin should be electrically connected directly to the power pad under the IC.
PH
10, 11,
The source of the internal high side power MOSFET, and drain of the internal low side (synchronous) rectifier
12
MOSFET.
Thermal
17
GND pin should be connected to the exposed power pad for proper operation. This thermal pad should be
Pad
connected to any internal PCB ground plane using multiple vias for good thermal performance.
PWRGD
14
An open drain output, asserts low if output voltage is low due to thermal shutdown, overcurrent,
over/under-voltage or EN shut down.
RT
8
Resistor Timing.
SS/TR
9
Slow-start. An external capacitor connected to this pin sets the output voltage rise time. This pin can also be used
for tracking.
VIN
1, 2, 16
Input supply voltage, 2.95 V to 6 V.
VSENSE
6
Inverting node of the transconductance (gm) error amplifier.
Copyright
2011, Texas Instruments Incorporated
5
Product Folder Link(s): TPS54519
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| TPS54519RTET | 功能描述:直流/直流開關調節器 2.95-6VIN,5A SYNC STEP-DOWN CONVERTER RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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