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ST8R00 Fiches technique(PDF) 1 Page - STMicroelectronics

No de pièce ST8R00
Description  Micropower 1 A synchronous step-up DC-DC converter
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST8R00 Fiches technique(HTML) 1 Page - STMicroelectronics

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February 2012
Doc ID 13449 Rev 2
1/18
18
ST8R00
Micropower 1 A synchronous step-up DC-DC converter
Features
Output voltage adjustable from 6 V to 12 V
Output voltage accuracy: ± 2%
Output current up to 1 A
Low ripple voltage: 5 mV (typ.)
Synchronous rectification
High 90% efficiency: VO = 9 V (typ.)
Few external components
Thermal shutdown protection
Very small DFN8 (4 x 4 mm) package
Description
The ST8R00 is a synchronous PWM step-up DC-
DC converter. The device is able to provide an
output voltage in the range of 6 to 12 V with an
input voltage from 4 to 6 V. The high switching
frequency (1.7 MHz) permits the use of tiny
surface-mount components. In addition to the
resistor divider to set the output voltage value,
only an inductor and two capacitors are required.
Moreover, 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
available in a very small DFN8 (4 x 4 mm)
package.
DFN8 4 x 4 mm
Table 1.
Device summary
Part number
Order code
Output voltage
ST8R00
ST8R00WPUR
ADJ
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