STOD1317B datasheet(9/22 Pages) STMICROELECTRONICS

Part #	STOD1317B

Description	Very high efficiency at light load thanks to pulse skipping operation

PDF	22 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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9 / 22 page

DocID022607 Rev 2

9/22

STOD1317B

Typical performance characteristics

TJ = 25 °C, VIN = 3.7 V, VOUT = 10 V, CIN = 2 x 10 µF, CMID = 2 x 4.7 µF, COUT = 2 x4.7 µF,

L = 4.7 µH, VEN = 2 V, unless otherwise specified.

Figure 4. Quiescent current vs. temperature

Figure 5. Switching frequency vs. temperature

Figure 6. Efficiency vs. output current

Figure 7. Switching frequency

VIN = 3.7 V, IOUT = 170 mA, TJ = 25 °C

Figure 8. Soft-start inrush current

Figure 9. Feedback voltage vs. temperature

VIN = 3.7 V, NO LOAD, TJ = 25°C, SS:1.265 ms, Inrush

current: 260 mA

1.5

1.75

2.25

2.5

2.75

-25

100

125

Temperature [C]

1.25

1.27

1.29

1.31

1.33

1.35

-25

100

125

Temperature [C]

3.7V

2.9V

4.8V

100

120

140

160

180

Output Current [mA]

VIN=4.2V

VIN=3.7V

VIN=3.2V

VIN=2.9V

VMID

VOUT

Frequency : 1.285 MHz

VOUT

IIN

1.15

1.16

1.17

1.18

1.19

1.2

1.21

1.22

2.3

2.5

2.7

2.9

3.1

3.3

3.5

3.7

3.9

4.1

4.3

4.5

4.7

4.9

Input Voltage [V]

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