SI-3018LSA-TL Allegro Micro Systems, Inc., SI-3018LSA-TL Datasheet

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SI-3018LSA-TL

Manufacturer Part Number
SI-3018LSA-TL
Description
SI-3018LSA-TLLOW-VOLTAGE, HIGH-CURRENT 1.8 V LINEAR REGULATOR
Manufacturer
Allegro Micro Systems, Inc.
Datasheet

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CONNECTION
Input Voltage, V
Supply Voltage, V
Continuous Output Current, I
Logic Input Voltage, V
Package Power Dissipation,
Output Junction Temperature,
Operating Temperature Range,
Storage Temperature Range,
* 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.
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ABSOLUTE MAXIMUM RATINGS
P
T
T
T
INTERNAL
J
A
stg
D
SUPPLY
ENABLE
........................................ See Graph
............................................ +150 C†
............................... -30 C to +100 C
............................. -30 C to +150 C
IN
1
2
3
4
IC
V
I
................................ 16 V
S
S
............................ 16 V
E
......................... V
VR
O
SUB
........ 1.0 A*
8
7
6
5
Dwg. PK-012
OUT
OUT
GND
GND
S
from Allegro MicroSystems
SI-3018LSA
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.
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.
surface-mount package (tape and reel) with enhanced power-dissipating
qualities. They are rated for continuous operation between -30 C and
+100 C.
FEATURES
Always order by complete part number: SI-3018LSA-TL , where “-TL”
indicates tape and reel.
Sanken Power Devices
LOW-VOLTAGE, HIGH-CURRENT
The SI-3018LSA is designed to meet the requirement for increased
The high-current pass element provides an output current to 1 A.
These devices are supplied in a fully molded 8-lead miniature
1 A Output Current
LSTTL/CMOS-Compatible On/Off Control
Less Than 1 A “Sleep” Current
Internal Foldback Overcurrent Limiting
Internal Thermal Protection
Surface-Mount Package
1.8 V LINEAR REGULATOR

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SI-3018LSA-TL Summary of contents

Page 1

... A Output Current LSTTL/CMOS-Compatible On/Off Control S Less Than 1 A “Sleep” Current Internal Foldback Overcurrent Limiting Internal Thermal Protection Surface-Mount Package Always order by complete part number: SI-3018LSA-TL , where “-TL” indicates tape and reel. Sanken Power Devices from Allegro MicroSystems ™ ...

Page 2

... ENABLE 4 GROUND 5 FUNCTIONAL BLOCK DIAGRAM Leads 7 and 8 are soldered to the copper area and provide heat sinking of the pass transistor. RECOMMENDED OPERATING CONDITIONS Max. Input Voltage, V Output Current, I Output Junction Temperature Range, T Ambient Temperature Range, T For the availability of parts meeting -40 C requirements, contact Allegro’ ...

Page 3

... ELECTRICAL CHARACTERISTICS Characteristic Symbol www.allegromicro.com LOW-VOLTAGE, HIGH-CURRENT Test Conditions SI-3018LSA 1.8 V LINEAR REGULATOR Limits Min. Typ. Max. Units ...

Page 4

... SI-3018LSA LOW-VOLTAGE, HIGH-CURRENT 1.8 V LINEAR REGULATOR TYPICAL CHARACTERISTICS at T Dropout voltage 0.6 0.5 0.4 0.3 0.2 0 0.2 0.4 0.6 OUTPUT CURRENT in AMPERES Overcurrent protection 1.0 0 0.5 1.0 OUTPUT CURRENT in AMPERES 1.86 1.84 1.82 1.80 1.78 1.76 1.74 0.8 1.0 1.2 Dwg. GK-025 2.0 1.5 1.0 0.5 0 1.5 2.0 Dwg. GK-027 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 ...

Page 5

... LOW-VOLTAGE, HIGH-CURRENT 0 8 Dwg. GK-029 ENABLE input current 3 0.5 1.0 1.5 2.0 ENABLE VOLTAGE in VOLTS SI-3018LSA 1.8 V LINEAR REGULATOR = 25 C (cont’d) A GND current 5 2.0 4.0 6.0 INPUT VOLTAGE 2.5 3.0 Dwg. GK-023 0 8 ...

Page 6

... Input voltage. Including ripple voltage and transients, the minimum input voltage should be greater than the sum of the output voltage and the maximum rated dropout voltage ...

Page 7

... NOTES: 1. Exact body and lead configuration at vendor’s option within limits shown. 2. Lead spacing tolerance is non-cumulative. 3. Leads 7 and 8 are internally connected together and provide heat sinking of the pass transistor. www.allegromicro.com LOW-VOLTAGE, HIGH-CURRENT Dimensions in Millimeters (controlling dimensions 1.27 BSC 5.1 0.4 0.10 MAX. SI-3018LSA 1 ...

Page 8

... SI-3018LSA LOW-VOLTAGE, HIGH-CURRENT 1.8 V LINEAR REGULATOR Tape and Reel Dimensions in Millimeters 0.3 2.5 CENTER LINES OF CAVITY COVER TAPE 2.0 180 (controlling dimensions) 0.7 8.0 USER DIRECTION OF UNREELING ACCESS HOLE 13 0.2 TAPE SLOT IN CORE FOR TAPE START 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Dwg. MA-015-1 15 ...

Page 9

... When using the products described herein, the applicability and suitability of such products for the intended purpose shall be reviewed at the users responsibility. Although Sanken undertakes to enhance the quality and reliability of its products, the occurrence of failure and defect of semiconductor products at a certain rate is inevitable ...

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