Datasheet

 
 
SLVS391B − OCTOBER 2001 − REVISED FEBRUARY 2002
13
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APPLICATION INFORMATION
1.8 V to 6.5 V
C1F
1 µF
86
C1F− C1F+
C2F
1 µF
34
C2F− C2F+
7
OUT
10
FB
+
C
o
10 µF
C
c
10 pF
max 150 mA
2
PG
R
5
VIN
1
EN
GND
9
OFF/ON
C
i
2.2 µF
INPUT
TPS60500
2.5 V to 6.5 V
C1F
1 µF
86
C1F− C1F+
C2F
1 µF
34
C2F−C2F+
7
OUT
10
FB
+
C
o
10 µF
max 150 mA
2
PG
R
5
VIN
1
EN
GND
9
OFF/ON
INPUT
TPS60503
1.5 V
R2
R1
V
O
V
O
+
(
R1 ) R2
)
R2
VFB
VFB = 0.8 V
3.15 V to 6.5 V
C1F
1 µF
86
C1F− C1F+
C2F
1 µF
34
C2F− C2F+
7
OUT
10
FB
+
C
out1
10 µF
max 250 mA
2
PG
R
5
VIN
1
EN
GND
9
OFF/ON
C
i
4.7 µF
INPUT
TPS60503
Power supply with 1,4 mm maximum height for 250-mA output current
+
C
out2
10 µF
1.5 V
C
i
2.2 µF
Nominal Output Voltage
1.2 V
1.5 V
1.6 V
1.8 V
2.5 V
Equation
R1 = 0.5R2
R1 = 0.875R2
R1 = R2
R1 = 1.25R2
R1 = 2.125R2
R1 + R2
ǒ
V
O
V
FB
Ǔ
–R2
Possible E24 Resistor Combination
R1 = 100 kΩ, R2 = 200 kΩ (1.20 V)
R1 = 160 kΩ, R2 = 180 kΩ (1.51 V)
Any
R1 = 150 kΩ, R2 = 120 kΩ (1.80 V)
R1 = 510 kΩ, R2 = 240 kΩ (2.50 V)
R1 = 470 kΩ, R2 = 220 kΩ (2.51 V)
Figure 26. Typical Operating Circuit