5V Regulator. SI-3011ZF Datasheet

SI-3011ZF Regulator. Datasheet pdf. Equivalent


Allegro MicroSystems SI-3011ZF
( DataSheet : www.DataSheet4U.com )
LRinegeuarlators
SI-3011ZF
High-Current, Low-Dropout, 1.1~5 V Regulator
ABSOLUTE MAXIMUM RATINGS
Input Voltage, VI . . . . . . . . . . . . . 10 V
Output Current, IO . . . . . . . . . . . . . 3 A*
Enable Input Voltage, VE . . . . . . . . 6 V
Junction Temperature, TJ . . . . +125°C
Storage Temperature Range,
TS . . . . . . . . . . . . -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-3011ZF voltage regulator offers the
reduced dropout voltage and low quiescent current essential for im-
proved efficiency. This device delivers a regulated output at up to 3 A.
Integrated thermal and overcurrent protection enhance overall system
reliability. Devices with fixed output voltages of 2.5 V or 3.3 V 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 700 mV at 3 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. A similar device
in a lower-power surface-mount plastic package is the SI-3011ZD.
FEATURES
3 A Output Current
0.7 V Maximum Dropout Voltage at IO = 3 A
1 µA Maximum Standby Current
Adjustable 1.1 ~ 5 V Output Voltage
Remote Voltage Sensing
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-3011ZF .
www.DataSheet4U.com
Sanken Power Devices
from Allegro MicroSystems


SI-3011ZF Datasheet
Recommendation SI-3011ZF Datasheet
Part SI-3011ZF
Description High-Current / Low-Dropoiut / 1.1 - 5V Regulator
Feature SI-3011ZF; ( DataSheet : www.DataSheet4U.com ) ar ors e n t Li ula g e R SI-3011ZF High-Current, Low-Dropout.
Manufacture Allegro MicroSystems
Datasheet
Download SI-3011ZF Datasheet




Allegro MicroSystems SI-3011ZF
SI-3011ZF
High-Current,
Low-Dropout,
1.1~5 V Regulator
FUNCTIONAL BLOCK DIAGRAM
LRinegeuarlators
Allowable Package Power Dissipation
Recommended Operating Conditions
Min Max Units
DC Input Voltage
— 6V
DC Output Current
0 3A
Adjustable Voltage Range 1.2
5V
Operating Junction Temp. -20 +100 °C
For the availability of parts meeting -40°C requirements,
contact Allegro’s Sales Representative.
This data sheet is based on Sanken data sheet SSJ-02605
115 Northeast Cutoff, Box 15036
2 Worcester, Massachusetts 01615-0036
Copyright © 2004, 2005 Allegro MicroSystems, Inc.



Allegro MicroSystems SI-3011ZF
LRinegeuarlators
SI-3011ZF
High-Current,
Low-Dropout,
1.1~5 V Regulator
ELECTRICAL CHARACTERISTICS at TA = +25°C, VO = 2.5 V adjusted, VE = 2 V (unless otherwise noted).
Limits
Characteristic
Symbol Test Conditions
Min. Typ. Max. Units
Output Voltage
VO
VO(off)
Output Volt. Temp. Coeff.
aVO
Internal Reference Voltage
Vref
Output Short-Circuit Current IOM
Line Regulation
VO(VI)
Load Regulation
VO(IO)
Dropout Voltage
VImin - VO
Ground Terminal Current
IGND
Enable Input Voltage
Enable Input Current
Ripple Rejection Ratio
Thermal Shutdown
VEH
VEL
IEH
IEL
PSRR
TJ
VI = VO(nom) + 1 V, IO = 10 mA
VE = 0 V
0°C TJ 100°C
VI = VO(nom) + 1 V, IO = 10 mA
VI = VO(nom) + 1 V, see note
VI = 3.0 ~ 5.0 V, IO = 10 mA
VI = 3.3 V, IO = 0 A ~ 3.0 A
IO = 3.0 A
VI = VO(nom) + 1 V, IO = 0 mA, VE = 2.0 V
VI = VO(nom) + 1 V, VE = 0 V
Output ON
Output OFF
VE = 2.7 V
VE = 0 V
VI = VO(nom) + 1 V, 100 Hz f 120 Hz
— VO(nom)
— — 0.5
V
V
— ±0.3 — mV/°C
1.078 1.100 1.122 V
3.2 — —
A
— — 10 mV
— — 40 mV
— — 0.7
V
— 1.0 1.5
mA
— — 1.0
µA
2.0 — —
V
— — 0.8
V
— — 100 µA
0 -5.0
µA
— 60 —
dB
135 152 —
°C
Typical values are given for circuit design information only.
Note: Output short-circuit current is at point where output voltage has decreased 5% below VO(nom).
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