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SI-3033C Datasheet(Fiches technique) 1 Page - Allegro MicroSystems

Numéro de pièce SI-3033C
Description  LOW-VOLTAGE, HIGH-CURRENT 1.8 V LINEAR REGULATOR
Télécharger  10 Pages
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Fabricant  ALLEGRO [Allegro MicroSystems]
Site Internet  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

SI-3033C Datasheet(HTML) 1 Page - Allegro MicroSystems

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LOW-VOLTAGE, HIGH-CURRENT
1.8 V LINEAR REGULATOR
The SI-3018LSA is designed to meet the requirement for increased
integration and reliability in low-voltage, high-current, linear regulator
applications such as personal computers (PCs) and set-top boxes. Each
device incorporates a monolithic low-level reference and control circuit
with a high-current pnp transistor in a power multi-chip module
(PMCM™). Regulated output voltages of 2.5 V or 3.3 V are also
available.
The high-current pass element provides a low dropout voltage with
output current to 1 A. Regulator accuracy of
±2 % and excellent
temperature characteristics are provided. The logic-compatible
ENABLE input gives the designer complete control over power up,
power down, and standby or sleep.
These devices are supplied in a fully molded 8-lead miniature
surface-mount package (tape and reel) with enhanced power-dissipating
qualities. They are rated for continuous operation between -30
°C and
+100
°C.
FEATURES
s
1 A Output Current
s
Low Dropout voltage
s
LSTTL/CMOS-Compatible On/Off Control
Less Than 1
µA “Sleep” Current
s
Internal Foldback Overcurrent Limiting
s
Internal Thermal Protection
s
Surface-Mount Package
Always order by complete part number: SI-3018LSA-TL ,
where “-TL” indicates tape and reel.
ABSOLUTE MAXIMUM RATINGS
Input Voltage, VI ................................ 16 V
Supply Voltage, VS ............................ 16 V
Continuous Output Current, IO ........ 1.0 A*
Logic Input Voltage, VE ......................... VS
Package Power Dissipation,
PD ........................................ See Graph
Output Junction Temperature,
TJ ............................................ +150°C†
Operating Temperature Range,
TA ............................... -30°C to +100°C
Storage Temperature Range,
Tstg ............................. -30°C to +150°C
* Output current rating may be limited by duty
cycle, ambient temperature, and heat sinking.
Under any set of conditions, do not exceed the
specified current rating or a junction temperature
of 150˚C.
† Fault conditions that produce excessive
junction temperature will activate the device’s
thermal protection circuitry. These conditions
can be tolerated but should be avoided.
SI-3018LSA
1
2
3
45
6
7
8
Dwg. PK-012
IN
GND
OUT
INTERNAL
CONNECTION
ENABLE
SUPPLY
GND
OUT
IC
VR
SUB
VS
TM


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