si-3003kwf Allegro MicroSystems, Inc., si-3003kwf Datasheet

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si-3003kwf

Manufacturer Part Number
si-3003kwf
Description
1 A, Low-dropout, Dual Output, 1.8 V & 2.5 V Regulator
Manufacturer
Allegro MicroSystems, Inc.
Datasheet
Input Voltage, V
Output Current, I
Enable Input Voltage, V
Junction Temperature, T
Storage Temperature Range,
* Output current rating is limited by input
ABSOLUTE MAXIMUM RATINGS
voltage, duty cycle, and ambient tempera-
ture. Under any set of conditions, do not
exceed a junction temperature of +125°C.
T
S
. . . . . . . . . . . . -40°C to +125°C
1 A, Low-Dropout, Dual Output, 1.8 V & 2.5 V Regulator
I
O
. . . . . . . . . . . . .
. . . . . . . . . . . . . 1 A*
E
J
. . . . . . . 6.0 V
. . . . +125°C
18 V
SI-3003KWF
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.
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.
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
APPLICATIONS
Always order by complete part number, e.g., SI-3003KWF ,
from Allegro MicroSystems
Sanken Power Devices
1 A Output Current per Channel
0.6 V Maximum Dropout Voltage at I
Fast Transient Response
1.5 mA Maximum Standby Current
Foldback Current Limiting
Thermal Protection
TVs, VCRs, Electronic Games
Embedded Core, Memory, or Logic Supplies
Printers and Other Office Equipment
Industrial Machinery
Secondary-Side Stabilization of Multi-Output SMPS
Designed to meet the high-current requirements in industrial and
Quiescent current does not increase significantly as the dropout
This device is supplied in a fully molded TO-220-style 5-lead
O
= 1 A

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si-3003kwf Summary of contents

Page 1

... Maximum Standby Current Foldback Current Limiting Thermal Protection 18 V 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 = ...

Page 2

... SI-3003KWF 1 A, Low-Dropout, Dual Output, 1.8 V & 2.5 V Regulator Allowable Package Power Dissipation 2 FUNCTIONAL BLOCK DIAGRAM Recommended Operating Conditions DC Output Current Operating Ambient Temp. Operating Junction Temp. For the availability of parts meeting -40°C requirements, contact Allegro’s Sales Representative. This data sheet is based on Sanken data sheet SSJ-02081A. ...

Page 3

... Output Output OFF 2 0 SI-3003KWF 1 A, Low-Dropout, Dual Output, 1.8 V & 2.5 V Regulator Min. Typ. 2.450 2.500 2.550 — — — ±0.3 1.2 — — — — — — — 120 Hz — 60 1.764 1.800 1.836 — ...

Page 4

... SI-3003KWF 1 A, Low-Dropout, Dual Output, 1.8 V & 2.5 V Regulator Chan. 1 Dropout Voltage Chan. 1 Line Regulation 4 TYPICAL CHARACTERISTICS ( 25° Chan. 1 Low-Voltage Behavior Chan. 1 Load Regulation 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 Chan. 1 Overcurrent Protection Chan. 1 Transient Response ...

Page 5

... Chan. 2 Low-Voltage Behavior Chan. 2 Line Regulation ENABLE Control Voltage www.allegromicro.com TYPICAL CHARACTERISTICS (cont 3 25° Chan. 2 Overcurrent Protection Chan. 2 Load Regulation ENABLE Control Current SI-3003KWF 1 A, Low-Dropout, Dual Output, 1.8 V & 2.5 V Regulator Chan. 2 Transient Response Thermal Protection 5 ...

Page 6

... SI-3003KWF 1 A, Low-Dropout, Dual Output, 1.8 V & 2.5 V Regulator Input Capacitor (C , µF). This is necessary I either when the input line includes inductance or when the wiring is long. Output Capacitor ( µF). This device is not O designed for a use with a very low ESR output capacitor such as a ceramic capacitor. Output oscillation may occur with that kind of capacitor ...

Page 7

... Dimensions in Millimeters Terminal Finish: Sn–3Ag–0.5Cu, 2nd level interconnect category (e1) Product Weight: Approx. 2.3 g Terminal spacing is measured at lead tips. SI-3003KWF 1 A, Low-Dropout, Dual Output, 1.8 V & 2.5 V Regulator 7 ...

Page 8

... SI-3003KWF 1 A, Low-Dropout, Dual Output, 1.8 V & 2.5 V Regulator Shipping Container Dimensions in Millimeters 8 Primary Packing: 50 pieces per stick Product Thickness: 0.7 mm ±0.3 mm Material: Hard polyvinylchloride (transparent) Warp: Within 2 mm against L-shape dimension Secondary Packing: Ten sticks, four layers (2000 pieces per box). Cardboard box. ...

Page 9

... SI-3003KWF 1 A, Low-Dropout, 1.8 V & 2.5 V Regulator The products described herein are manufactured in Japan by Sanken Electric Co., Ltd. for sale by Allegro MicroSystems, Inc. Sanken and Allegro reserve the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, or manufacturability of its products ...

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