SPX1583T5 Sipex Corporation, SPX1583T5 Datasheet
SPX1583T5
Manufacturer Part Number
SPX1583T5
Description
Manufacturer
Sipex Corporation
Datasheet
1.SPX1583T5-TR.pdf
(5 pages)
Specifications of SPX1583T5
Date_code
06
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SPX1583T5
Manufacturer:
SIPEX
Quantity:
20 000
Company:
Part Number:
SPX1583T5-L/TR
Manufacturer:
ROHM
Quantity:
2 500
Part Number:
SPX1583T5-L/TR
Manufacturer:
SIPEX/EXAR
Quantity:
20 000
FEATURES
• Low Dropout Voltage 500mV at 1.5A Full Load Current
• Adjustable Output Down to 1.2V from ATX Power Supply
• Fixed Output Voltages of 3.3V, 2.8V, 2.5V, and 1.5V
• Extremely Tight Voltage and Line Regulation
• Standard 5-Terminal Low Cost TO-220 & TO-263
PRODUCT DESCRIPTION
The SPX1583 is a 1.5A Low Dropout Regulator with extremely low dropout voltage. The adjustable version requires only t wo
external resistors to set the output voltage. The fixed version has a preset output of 3.3V, 2.8V or 2.5V and does not require any
external resistors. The SPX1583 features a low dropout of less than 400mV(typ.) and offers fast transient response. T his device is
suitable for Pentium applications requiring 2.8V or 2.5V from 3.3V ATX power supplies, where a low current input voltag e 1V
greater than the output voltage is needed. With an external sense pin the load regulation is less than 1mV. This devi ce is an excellent
choice for the use in powering low voltage microprocessors that require a lower dropout, fast transient response to reg ulate from 3.3V
and 5V supplies. The SPX1583 is also an excellent choice as a post regulator for switching supplies applications.
The SPX1583 offers full protection against over-current faults, reversed input polarity, over temperature operation and positive and
negative transient voltage.
The SPX1583 is offered in a 5 pin TO-220 and TO-263 compatible with industry standard 5-terminal regulators. For 7A, 5 A and 3A
ultra low dropout versions refer to SPX1580, SPX1581 and SPX1582 data sheets respectively.
TO-263-5 (T)
1 2 3
SPX1583
Top View
4 5
PIN CONNECTIONS
1. SENSE
2. ADJ or FIXED
3. V
4. V
5. V
OUT
CTRL
IN
1.5A Ultra Low Dropout Voltage Regulator
N ow Available in Lead Free Packaging
APPLICATIONS
• 3.3V to 2.8V ATX Power Supplies
• 3.3V to 2.9V for Portable PENTIUM Processor
• 5V to 3.5V VRE Supply
• High Efficiency “Green” Computer Systems
Fast Response, Adjustable & Fixed
TO-220-5 (U)
1
Front View
SPX1583
2
3
4
5
1. SENSE
3. V
4. V
2. ADJ or FIXED
5. V
OUT
CTRL
IN
SPX1583
D ate: Jun 24-04
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