SI-3003KWF Datasheet, PDF (1/9 Pages) Allegro MicroSystems – 1A, Low-Dropout, Dual Outpout, 1.8V & 2.5V Regulator

LRinegeuarlators
SI-3003KWF
1 A, Low-Dropout, Dual Output, 1.8 V & 2.5 V Regulator
ABSOLUTE MAXIMUM RATINGS
Input Voltage, V_I . . . . . . . . . . . . . 18 V
Output Current, I_O . . . . . . . . . . . . . 1 A*
Enable Input Voltage, V_E . . . . . . . 6.0 V
Junction Temperature, T_J . . . . +125°C
Storage Temperature Range,
T_S . . . . . . . . . . . . -40°C to +125°C
* Output current rating is limited by input
voltage, duty cycle, and ambient tempera-
ture. Under any set of conditions, do not
exceed a junction temperature of +125°C.
Designed to meet the high-current requirements in industrial and
consumer applications; embedded core, memory, or logic supplies; TVs,
VCRs, and office equipment, the SI-3003KWF voltage regulator offers
the reduced dropout voltage and low quiescent current essential for
improved efficiency. This device delivers dual regulated outputs at up to
1 A. Integrated thermal and overcurrent protection enhance overall
system reliability. Devices with other output voltages are also available.
Quiescent current does not increase significantly as the dropout
voltage is approached, an ideal feature in standby/resume power systems
where data integrity is crucial. Regulator accuracy and excellent
temperature characteristics are provided by a bandgap reference. An
LS-TTL/CMOS-compatible input gives the designer complete control
over power up, standby, or power down. A pnp pass element provides a
dropout voltage of less than 600 mV at 1 A of load current. Low output
voltages eliminate the need for expensive PWM buck converters. The
low dropout voltage permits more efficient regulation before output
regulation is lost.
This device is supplied in a fully molded TO-220-style 5-lead
flange-mounted , high power, isolated plastic package. Similar devices
in a lower-power surface-mount plastic package are the SI-3003KWD
and SI-3003KWM.
FEATURES
■ 1 A Output Current per Channel
■ 0.6 V Maximum Dropout Voltage at I_O = 1 A
■ Fast Transient Response
■ 1.5 mA Maximum Standby Current
■ Foldback Current Limiting
■ Thermal Protection
APPLICATIONS
■ TVs, VCRs, Electronic Games
■ Embedded Core, Memory, or Logic Supplies
■ Printers and Other Office Equipment
■ Industrial Machinery
■ Secondary-Side Stabilization of Multi-Output SMPS
Always order by complete part number, e.g., SI-3003KWF ,
Sanken Power Devices
from Allegro MicroSystems