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參數資料
| 型號： | TPS51317RGBR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PQCC20 |
| 封裝： | 4 X 3.50 MM, GREEN, PLASTIC, QFN-20 |
| 文件頁數： | 5/28頁 |
| 文件大?。?/td> | 1000K |
| 代理商： | TPS51317RGBR |
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+
V
SLEW
+
–
R
DROOP
+
PWM
Comparator
R
DS(on)
G
MV
= 1 mS
Driver
L
OUT
ESR
C
OUT
R
OUT
UDG-10188
R
LOAD
8 kW
+
–
+
G
MC
= 1 mS
VREF
UDG-11080
Droop
I
LOAD
V
OUT
setpoint at 0 A
Maximum undershoot voltage =(5%–1%) x 1 = 4% x V
OUT
Load insertion
Load release
Non-
Droop
Maximum transient voltage
= (5%–1%) x 2 = 8% x V
OUT
V
OUT
setpoint at 6 A
V
OUT
setpoint at 0 A
Maximum overshoot voltage =(5%–1%) x 1 = 4% x V
OUT
SLUSAH9
– MARCH 2011
Figure 7 shows the basic implementation of the droop mode using the TPS51317.
Figure 7. DROOP Mode Basic Implementation
The droop (voltage positioning) method was originally recommended to reduce the number of external output
capacitors required. The effective transient voltage range is increased because of the active voltage positioning
(see Figure 8).
Figure 8. DROOP vs Non-DROOP in Transient Voltage Window
In applications where the DC and the AC tolerances are not separated, which means there is not a strict DC
tolerance requirement, the droop method can be used.
Copyright
2011, Texas Instruments Incorporated
13
Product Folder Link(s): TPS51317
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS51317RGBT | 功能描述:直流/直流開關轉換器 3.3V/5Vin,6A,DCAP Mode Sync Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| TPS51362RVER | 制造商:Texas Instruments 功能描述:22V INPUT, 10A INTEGRATED FET 制造商:Texas Instruments 功能描述:IC REG BUCK SYNC ADJ 10A 28VQFN |
| TPS51362RVET | 制造商:Texas Instruments 功能描述:22V INPUT, 10A INTEGRATED FET 制造商:Texas Instruments 功能描述:IC REG BUCK SYNC ADJ 10A 28VQFN |
| TPS51363 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:22-V Input, 8-A or 10-A Converter With Integrated FET |
| TPS51363RVER | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 3V to 22V 28-Pin VQFN EP T/R 制造商:Texas Instruments 功能描述:IC REG BCK SYNC ADJ 10/8A 28VQFN |
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