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參數(shù)資料
| 型號： | TPS60151DRVR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.5 A SWITCHED CAPACITOR REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | 2 X 2 MM, 0.80 MM HEIGHT, GREEN, PLASTIC, SON-6 |
| 文件頁數(shù)： | 6/22頁 |
| 文件大?。?/td> | 1664K |
| 代理商： | TPS60151DRVR |
charging
FLY
CFLY
discharging
discharge
LO AD(MAX)
Q
= c
v = C
V
,
T
Q
= i
t = 2
I
, half duty.
2
D
÷
è
(1)
Both equation should be same,
LOAD(MAX)
FLY
CFLY
T
2
I
= C
V
2
\
D
÷
è
÷
è
\
D
LOAD(MAX)
FLY
CFLY
T
2
I
2
C
=
V
(2)
(
)
=
+
LOAD(MAX)
OUT(RIPPLE)
LOAD(MAX)
COUT
OUT
I
V
2I
ESR
2 f C
(3)
=
OUT
IN
OUT
Q
IN
V
I
PD(out)
Efficiency(%) =
100 =
100 , I
2
I
+ I
PD(in)
V
I
(4)
(
)
OUT
IN
OUT
IN
V
Efficiency(%) =
× 100 I
= 2
I
Quiescent current was neglected.
2 × V
(5)
PCB LAYOUT
SLVSA02 – SEPTEMBER 2009 ......................................................................................................................................................................................... www.ti.com
If ILOAD = 140 mA, f = 1.5MHZ, and ΔVCFLY = 100mV, the minimum value of the flying capacitor should be 1F.
Output capacitance, COUT, is also strongly related to output ripple voltage and loop stability,
The minimum output capacitance for all output levels is 2.2
F due to control stability. Larger ceramic capacitors
or low ESR capacitors can be used to lower the output ripple voltage.
Suggested Capacitors (Input / Output / Flying Capacitor)
Dielectric
Rated
Manufacturer
Part Number
Value
Tolerance
Package Size
Material
Working Voltage
4.7
F
X7R
6.3V
2.2
F
The efficiency of the charge pump regulator varies with the output voltage, the applied input voltage and the load
current.
The approximate efficiency in normal operating mode is given by:
Large transient currents flow in the VIN, VOUT, and GND traces. To minimize both input and output ripple, keep
the capacitors as close as possible to the regulator using short, direct circuit traces.
14
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s) :TPS60151
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS60151DRVT | 功能描述:電荷泵 140mA,5V Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| TPS60151EVM-359 | 功能描述:電源管理IC開發(fā)工具 TPS60151 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS601A | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:PHOTOELECTRIC COUNTER POSITION DETECTION VARIOUS KINDS OF READERS |
| TPS601A(F) | 制造商:Toshiba 功能描述:Bulk |
| TPS601A-A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PHOTOTRANSISTOR | NPN | 800NM PEAK WAVELENGTH | 50M | CAN-4.6 |
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