ST1S06APM STMICROELECTRONICS [STMicroelectronics], ST1S06APM Datasheet

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ST1S06APM

Manufacturer Part Number
ST1S06APM
Description
Synchronous rectification with inhibit, 1.5A, 1.5 MHz fixed or adjustable, step-down switching regulator in DFN6 3x3
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet

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General features
Description
The ST1S06 is a step down DC-DC converter
optimized for powering low-voltage digital core in
HDD applications and, generally, to replace the
Order code
April 2007
Step-down current mode PWM (1.5MHz) DC-
DC converter
2% DC output voltage tolerance
Synchronous rectification
Inhibit function
Internal soft start
Typical efficiency:> 90%
1.5A Output current capability
Not switching quiescent current: max 1.5mA
over temperature range
R
Uses tiny capacitors and inductors
Operative junction temp. -30°C to 125°C
Available in DFN6 3x3 exposed pad
DS
ON typ150m
ST1S06PM12
ST1S06PM33
ST1S06PU12
ST1S06PU33
Synchronous rectification with inhibit, 1.5A, 1.5 MHz fixed or
Part number
ST1S06APM
ST1S06APU
ST1S06PM
ST1S06PU
adjustable, step-down switching regulator in DFN6 3x3
ST1S06PM12R
ST1S06PM33R
ST1S06PU12R
ST1S06PU33R
ST1S06APMR
ST1S06APUR
ST1S06PMR
ST1S06PUR
Packaging
Rev. 5
high current linear solution when the power
dissipation may cause an high heating of the
application environment. It provides up to 1.5A
over an input voltage range of 2.7V to 6V. An high
switching frequency (1.5MHz) 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.
Besides, a low output ripple is guaranteed by the
current mode PWM topology and by the use of low
E.S.R. SMD ceramic capacitors. The device is
thermal protected and current limited to prevent
damages due to accidental short circuit. The
ST1S06 is available in DFN6 3x3 package.
DFN6 (3x3mm)
DFN6D (3x3 mm)
DFN6D (3x3 mm)
DFN6D (3x3 mm)
DFN6D (3x3 mm)
DFN6 (3x3 mm)
DFN6 (3x3 mm)
DFN6 (3x3 mm)
DFN6 (3x3 mm)
Package
ST1S06
www.st.com
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ST1S06APM Summary of contents

Page 1

... PWM topology and by the use of low E.S.R. SMD ceramic capacitors. The device is thermal protected and current limited to prevent damages due to accidental short circuit. The ST1S06 is available in DFN6 3x3 package. Packaging ST1S06PMR ST1S06PUR ST1S06APMR ST1S06PM12R ST1S06PM33R ST1S06APUR ST1S06PU12R ST1S06PU33R Rev. 5 ST1S06 ...

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

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ST1S06 1 Diagram Figure 1. Schematic diagram Diagram 3/19 ...

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

Page 5

ST1S06 3 Maximum ratings Table 2. 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 ...

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Electrical characteristics 4 Electrical characteristics Table 4. Electrical characteristics for ST1S06 ( IN_SW IN_A INH (unless otherwise specified. Typical values are referred to T Symbol Parameter FB Feedback voltage I V pin bias current Minimum ...

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ST1S06 Table 5. Electrical characteristics for ST1S06PM12 ( IN_SW IN_A INH otherwise specified. Typical values are referred to T Symbol Parameter OUT Output feedback pin I I Pin bias current Minimum input voltage I I ...

Page 8

Electrical characteristics Table 6. Electrical characteristics for ST1S06PM33 ( IN_SW IN_A INH otherwise specified. Typical values are referred to T Symbol Parameter OUT Output feedback pin I I Pin bias current Minimum input voltage I ...

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ST1S06 5 Typical performance characteristics ( IN_SW IN_A INH 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 =5V 4.7µF, C ...

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Typical performance characteristics Figure 9. Voltage feedback vs temperature Figure 11. Feedback pin bias current vs temperature Figure 13. Quiescent current vs temperature 10/19 Figure 10. Input voltage vs output voltage Figure 12. Quiescent current vs temperature Figure 14. Inhibit ...

Page 11

ST1S06 Figure 15. Inhibit voltage vs temperature Figure 17. Line regulation vs temperature Figure 19. PWM Switching Frequency vs temperature Typical performance characteristics Figure 16. Inhibit voltage vs temperature Figure 18. Load regulation vs temperature Figure 20. NMOS Switch on ...

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Typical performance characteristics Figure 21. PMOS Switch on resistance vs temperature Figure 23. Inhibit transient 10mA I INH O 12/19 Figure 22. Inhibit transient ...

Page 13

ST1S06 6 Typical application Figure 24. Application circuit Application notes The ST1S06 is an adjustable current mode PWM step-down DC/DC converter with internal 1.5A power switch, packaged in a 6-lead DFN 3x3. It’s a complete 1.5A switching regulator with its ...

Page 14

Package mechanical data 7 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on ...

Page 15

ST1S06 DIM. MIN 0.33 D 2.90 D2 1.92 E 2. 0.20 DFN6 (3x3) MECHANICAL DATA mm. TYP MAX. 1.00 0.05 0.75 0.20 0.43 3.00 ...

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Package mechanical data DIM. MIN 0.23 D 2.90 D2 2.23 E 2. 0.30 16/19 DFN6D (3x3) MECHANICAL DATA mm. TYP MAX. 1.00 0.02 0.05 0.20 0.45 3.00 3.10 2.50 3.00 ...

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ST1S06 Tape & Reel QFNxx/DFNxx (3x3) MECHANICAL DATA DIM. MIN 12 mm. TYP MAX. MIN. 330 13.2 0.504 0.795 2.362 18.4 3.3 3.3 1 Package mechanical ...

Page 18

Revision history 8 Revision history Table 7. Revision history Date Revision 08-May-2006 1 06-Jun-2006 2 16-Oct-2006 3 09-Nov-2006 4 03-Apr-2007 5 18/19 Initial release. Table 2. has been updated. Add new mechanical data DFN6D. Mechanical data information for DFN6 has ...

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ST1S06 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 ...

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