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ST1S06XX33 Fiches technique(PDF) 1 Page - STMicroelectronics

No de pièce ST1S06XX33
Description  Synchronous rectification with inhibit, 1.5 A, 1.5 MHz fixed or adjustable, step-down switching regulator
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST1S06XX33 Fiches technique(HTML) 1 Page - STMicroelectronics

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April 2008
Rev 7
1/20
ST1S06xx
Synchronous rectification with inhibit, 1.5 A, 1.5 MHz fixed or
adjustable, step-down switching regulator
Features
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
RDS(ON) typ.150 mΩ
Uses tiny capacitors and inductors
Operative junction temp. - 30 °C to 125 °C
Available in DFN6D 3x3 exposed pad
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
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.
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
ST1S06 is available in DFN6D 3x3 package.
DFN6D (3x3 mm)
Table 1.
Device summary
Part numbers
Order codes
Package
ST1S06
ST1S06PUR
DFN6D (3x3 mm)
ST1S06A
ST1S06APUR
DFN6D (3x3 mm)
ST1S06XX12
ST1S06PU12R
DFN6D (3x3 mm)
ST1S06XX33
ST1S06PU33R
DFN6D (3x3 mm)
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