參數(shù)資料
型號： TPS60500DGS
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 0.3 A SWITCHED CAPACITOR REGULATOR, 1200 kHz SWITCHING FREQ-MAX, PDSO10
封裝： 3.05 X 4.98 MM, PLASTIC, MSOP-10
文件頁數(shù)： 8/24頁
文件大小： 743K
代理商： TPS60500DGS
TPS60500, TPS60501
TPS60502, TPS60503
SLVS391B OCTOBER 2001 REVISED FEBRUARY 2002
16
www.ti.com
APPLICATION INFORMATION
power supply with dynamic voltage scaling (continued)
General requirements for the application:
D Output voltage1 (DSP core):
1.5 V
±0.08 V
D Output voltage 2 (DSP core):
1.1 V +0.1 V –0.05 V
D Input voltage:
3 V to 3.3 V
D Output current:
150 mA (10R load)
C1F
1
F
86
C1F C1F+
C2F
1
F
34
C2F C2F+
7
OUT
10
FB
Co
10
F
2
PG
R1
5
VIN
1
EN
GND
9
OFF/ON
Ci
2.2
F
TPS60500
Input
3.3 V
R2
R3
C(ff)
150 pF
R4
T1
BSS138
R5
330 k
C6
470 pF
1.5 V / 1.1 V
150 mA
DVS in
Figure 29. Dynamic Voltage Scaling Application
To keep current through the adjustment resistor network as low as possible, the resistors are calculated to:
R3
+
V
FB
V
out1*VFB
R2
Vout1 adjusted by R2 and R3
Vout1 = 1.1 V,
R2 = 180 k
,
Vref = 0.80 V,
→R3 = 470 k
Vout2 adjusted by R2 and Rx = R3||R4
Vout2 = 1.5 V,
→Rx = 206 k
Rx
+
V
FB
R2
V
out2 * VFB
→R4 = 360 k
R4 +
1
Rx *
1
R3
1
Rx
+ 1
R3
) 1
R4
(1)
(2)
(3)
相關PDF資料
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TPS60500DGSRG4 0.25 A SWITCHED CAPACITOR REGULATOR, 1200 kHz SWITCHING FREQ-MAX, PDSO10
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