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參數(shù)資料
| 型號： | TPS60150DRVR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.4 A SWITCHED CAPACITOR REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | 2 X 2 MM, GREEN, PLASTIC, SON-6 |
| 文件頁數(shù)： | 4/21頁 |
| 文件大?。?/td> | 1707K |
| 代理商： | TPS60150DRVR |
CP-
VIN
VOUT
GND
CP+
ENA
VIN
VOUT
(5V)
ENABLE
/DISABLE
COUT
CIN
CF
charging
FLY
CFLY
discharging
discharge
LO AD(MAX)
Q
= c
v = C
V
,
T
Q
= i
t = 2
I
, half duty.
2
D
÷
è
LOAD(MAX)
FLY
CFLY
T
2
I
= C
V
2
\
D
÷
è
÷
è
\
D
LOAD(MAX)
FLY
CFLY
T
2
I
2
C
=
V
(
)
=
+
LOAD(MAX)
OUT(RIPPLE)
LOAD(MAX)
COUT
OUT
I
V
2I
ESR
2 f C
=
OUT
IN
OUT
Q
IN
V
I
PD(out)
Efficiency(%) =
100 =
100 , I
2
I
+ I
PD(in)
V
I
SLVS888B
– DECEMBER 2008 – REVISED FEBRUARY 2011
SHUTDOWN MODE
An enable pin on the regulator may be used to place the device into an energy-saving shutdown mode. In this
mode, the output is disconnected from the input and the input quiescent current is reduced to 1
μA maximum.
CAPACITOR SELECTION
For minimum output voltage ripple, the output capacitor (COUT) should be a surface-mount ceramic capacitor.
Tantalum capacitors generally have a higher Effective Series Resistance (ESR) and may contribute to higher
output voltage ripple. Leaded capacitors also increase ripple due to the higher inductance of the package itself.
To achieve the best operation with low input voltage and high load current, the input and flying capacitors (CIN
and CF, respectively) should also be surface-mount ceramic types.
Figure 25. Capacitors
Generally, CFLY can be calculated by simple equation as follows,
(1)
Both equation should be same,
(2)
If ILOAD = 140 mA, f = 1.5MHZ, and ΔVCFLY = 100mV, the minimum value of the flying capacitor should be 1μF.
Output capacitance, COUT, is also strongly related to output ripple voltage and loop stability,
(3)
The minimum output capacitance for all output levels is 2.2
μF due to control stability. Larger ceramic capacitors
or low ESR capacitors can be used to lower the output ripple voltage.
Table 2. Suggested Capacitors (Input / Output / Flying Capacitor)
Dielectric
Rated working
Manufacturer
Part number
Value
Tolerance
Package Size
material
voltage
4.7uF
X7R
6.3V
2.2uF
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:
(4)
12
2008–2011, Texas Instruments Incorporated
Product Folder Link(s): TPS60150
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS60150DRVT | 功能描述:電荷泵 150mA,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 |
| TPS60150EVM-359 | 功能描述:電源管理IC開發(fā)工具 TPS60150EVM-359 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 |
| TPS60151 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:TPS60151 5V/140mA Charge Pump Device |
| TPS60151ADRVR | 制造商:Texas Instruments 功能描述: |
| TPS60151DRV | 制造商:TI 制造商全稱:Texas Instruments 功能描述:TPS60151 5V/140mA Charge Pump Device |
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