ST1S06DEMOBO33 STMicroelectronics, ST1S06DEMOBO33 Datasheet

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ST1S06DEMOBO33

Manufacturer Part Number
ST1S06DEMOBO33
Description
DEMO BOARD FOR ST1S06PM33R
Manufacturer
STMicroelectronics
Type
Power Management: DC/DC SMPSr
Datasheet

Specifications of ST1S06DEMOBO33

Contents
Fully Assembled Evaluation Board
For Use With/related Products
ST1S06PM33R
For Use With
497-6420 - BOARD EVAL BASED ON ST1S06
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-5850

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Quantity
Price
Part Number:
ST1S06DEMOBO33
Manufacturer:
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Features
Description
The ST1S06xx is a step down DC-DC converter
optimized for powering low-voltage digital core in
HDD applications and, generally, to replace the
high current linear solution when the power
dissipation may cause an high heating of the
application environment. It provides up to 1.5 A
over an input voltage range of 2.7 V to 6 V. An high
switching frequency (1.5 MHz) allows the use of
tiny surface-mount components: as well as the
resistor divider to set the output voltage value,
only an inductor and two capacitors are required.
Table 1.
May 2009
Step-down current mode PWM (1.5 MHz) DC-
DC converter
2% DC output voltage tolerance
Synchronous rectification
Inhibit function
Internal soft start
Typical efficiency: > 90 %
1.5 A output current capability
Not switching quiescent current: max 1.5 mA
over temperature range
R
Uses tiny capacitors and inductors
Operative junction temp. - 30 °C to 125 °C
Available in DFN6D (3x3 mm) exposed pad
DS(ON)
Part numbers
ST1S06XX12
ST1S06XX33
ST1S06A
ST1S06
Synchronous rectification with inhibit, 1.5 A, 1.5 MHz fixed or
typ.150 mΩ
Device summary
ST1S06A
Marking
ST1S06
1S0612
1S0633
adjustable, step-down switching regulator
Doc ID 12236 Rev 9
Besides, a low output ripple is guaranteed by the
current mode PWM topology and by the use of low
ESR SMD ceramic capacitors. The device is
thermal protected and current limited to prevent
damages due to accidental short circuit. The
ST1S06xx is available in DFN6D (3x3 mm)
package.
ST1S06PU12R
ST1S06PU33R
ST1S06APUR
Order codes
ST1S06PUR
DFN6D (3x3 mm)
DFN6D (3 x 3 mm)
DFN6D (3 x 3 mm)
DFN6D (3 x 3 mm)
DFN6D (3 x 3 mm)
ST1S06xx
Package
www.st.com
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ST1S06DEMOBO33 Summary of contents

Page 1

Synchronous rectification with inhibit, 1.5 A, 1.5 MHz fixed or Features ■ Step-down current mode PWM (1.5 MHz) DC- DC converter ■ output voltage tolerance ■ Synchronous rectification ■ Inhibit function ■ Internal soft start ■ Typical efficiency: ...

Page 2

Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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Diagram Figure 1. Schematic diagram Doc ID 12236 Rev 9 3/20 ...

Page 4

Pin configuration Figure 2. Pin configuration (top view) ST1S06 * Pin for ADJ version and V FB Table 2. Pin description Pin n° Symbol 1 FB/V Feedback voltage / output voltage O 2 GND System ground ...

Page 5

Maximum ratings Table 3. Absolute maximum ratings Symbol V Positive power supply voltage IN_SW V Positive power supply voltage IN_A V Inhibit voltage INH SWITCH Max. voltage of output pin voltage V /V Feedback voltage Output ...

Page 6

Electrical characteristics IN_SW IN_A 125 °C unless otherwise specified. Typical values are referred to T Table 5. Electrical characteristics for ST1S06 Symbol Parameter FB Feedback voltage I V pin bias current ...

Page 7

IN_SW IN_A 125 °C unless otherwise specified. Typical values are referred to T Table 6. Electrical characteristics for ST1S06PM12 Symbol Parameter OUT Output feedback pin I I pin bias current Minimum input ...

Page 8

IN_SW IN_A 125 °C unless otherwise specified. Typical values are referred to T Table 7. Electrical characteristics for ST1S06PM33 Symbol Parameter OUT Output feedback pin I I pin bias current Minimum input ...

Page 9

Typical performance characteristics IN_SW IN_A specified. Typical values are referred to 25 °C. Figure 3. Efficiency vs. output current Figure 5. Efficiency vs. output current Figure 7. Efficiency vs. output current = 5 V, ...

Page 10

Figure 9. Voltage feedback vs. temperature Figure 11. Feedback pin bias current vs. temperature Figure 13. Quiescent current vs. temperature 10/20 Figure 10. Input voltage vs. output voltage Figure 12. Quiescent current vs. temperature Figure 14. Inhibit voltage vs. input ...

Page 11

Figure 15. Inhibit voltage vs. temperature Figure 17. Line regulation vs. temperature Figure 19. PWM switching frequency vs. temperature Figure 16. Inhibit voltage vs. temperature Figure 18. Load regulation vs. temperature Figure 20. NMOS switch on resistance vs. temperature Doc ...

Page 12

Figure 21. PMOS switch on resistance vs. temperature Figure 23. Inhibit transient INH O 12/20 Figure 22. Inhibit transient ...

Page 13

Typical application Figure 24. Application circuit Doc ID 12236 Rev 9 13/20 ...

Page 14

Application notes The ST1S06xx is an adjustable current mode PWM step-down DC-DC converter with internal 1.5 A power switch, packaged in a 6-lead DFN 3x3. It’s a complete 1.5 A switching regulator with its internal compensation eliminating additional component. ...

Page 15

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 ...

Page 16

Dim. Min 0.23 D 2.90 D2 2.23 E 2. 0.30 16/20 DFN6D (3x3 mm) mechanical data mm. Typ. Max. 1.00 0.02 0.05 0.20 0.45 3.00 3.10 2.50 3.00 3.10 1.75 ...

Page 17

Tape and reel QFNxx/DFNxx (3x3 mm) mechanical data mm. Dim. Min. Typ 12 3.3 Bo 3 Max. Min. 330 13.2 0.504 0.795 2.362 18 Doc ID ...

Page 18

Figure 25. DFN6 (3x3 mm) footprint recommended data 18/20 Doc ID 12236 Rev 9 ...

Page 19

Revision history Table 8. Document revision history Date Revision 08-May-2006 1 06-Jun-2006 2 16-Oct-2006 3 09-Nov-2006 4 03-Apr-2007 5 12-Mar-2008 6 15-Apr-2008 7 10-Apr-2009 8 06-May-2009 9 Changes Initial release. Table 3 updated. Add new mechanical data DFN6D. Mechanical ...

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... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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