Datasheet
Table Of Contents
- Table 1. Device summary
- 1 Application circuit
- 2 Pin configuration
- 3 Maximum ratings
- 4 Electrical characteristics
- 5 Application information
- 5.1 Description
- 5.2 External components selection
- 5.3 Output capacitor (VOUT > 2.5 V)
- 5.4 Output capacitor (0.8 V < VOUT < 2.5 V)
- 5.5 Output voltage selection
- 5.6 Inductor (VOUT > 2.5 V)
- 5.7 Inductor (0.8 V < VOUT < 2.5 V)
- 5.8 Function operation
- 6 Layout considerations
- 7 Diagram
- 8 Typical performance characteristics
- Figure 9. Voltage feedback vs. temperature
- Figure 10. Oscillator frequency vs. temperature
- Figure 11. Max duty cycle vs. temperature
- Figure 12. Inhibit threshold vs. temperature
- Figure 13. Reference line regulation vs. temperature
- Figure 14. Reference load regulation vs. temperature
- Figure 15. ON mode quiescent current vs. temperature
- Figure 16. Shutdown mode quiescent current vs. temperature
- Figure 17. PMOS ON resistance vs. temperature
- Figure 18. NMOS ON resistance vs. temperature
- Figure 19. Efficiency vs. temperature
- Figure 20. Efficiency vs. output current@Vout = 5 V
- Figure 21. Efficiency vs. output current@Vout = 3.3 V
- Figure 22. Efficiency vs. output current@Vout = 12 V
- 9 Package mechanical data
- Table 6. Power SO-8 (exposed pad) mechanical data
- Figure 23. Power SO-8 (exposed pad) dimensions
- Figure 24. Power SO-8 (exposed pad) recommended footprint
- Table 7. Power SO-8 (exposed pad) tape and reel mechanical data
- Figure 25. Power SO-8 (exposed pad) tape and reel dimensions
- Table 8. DFN8 (4X4) mechanical data
- Figure 26. DFN8 (4x4) dimensions
- Table 9. DFN8 (4x4)tape and reel mechanical data
- Figure 27. DFN8 (4x4)tape and reel dimensions
- 10 Revision history

Package mechanical data ST1S10
22/29 Doc ID 13844 Rev 5
9 Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK
®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK
®
is an ST trademark.
Note: Dimension "D" does not include mold flash, protrusions or gate burrs. Mold flash,
protrusions or gate burrs shall not exceed 0.15mm in total (both side).
Dimension "E1" does not include interlead flash or protrusions.
Interlead flash or protrusions shall not exceed 0.25mm per side.
The size of exposed pad is variable depending of leadframe design pad size.
End user should verify "D1" and "E2" dimensions for each device application
Table 6. Power SO-8 (exposed pad) mechanical data
Dim.
mm
Min. Typ. Max.
A 1.70
A1 0.00 0.15
A2 1.25
b0.31 0.51
c0.17 0.25
D4.804.905.00
D1 ACCORDING TO PAD SIZE
E5.806.006.20
E1 3.80 3.90 4.00
E2 ACCORDING TO PAD SIZE
e1.27
h0.25 0.50
L0.40 1.27
K0 8
ccc 0.10