SPX1117M3-L-1-8 Exar Corporation, SPX1117M3-L-1-8 Datasheet

SPX1117M3-L-1-8

Manufacturer Part Number

SPX1117M3-L-1-8

Description

IC REG LDO 1.8V 800MA SOT223-3

Manufacturer

Exar Corporation

Series

-r

Datasheets

1.SPX1117M3-L-1-5.pdf (11 pages)

2.SPX1117M3-L-5-0.pdf (16 pages)

Specifications of SPX1117M3-L-1-8

Package / Case

TO-261-4, TO-261AA, SOT-223-4

Regulator Topology

Positive Fixed

Voltage - Output

1.8V

Voltage - Input

Up to 15V

Voltage - Dropout (typical)

1.1V @ 800mA

Number Of Regulators

Current - Output

800mA

Current - Limit (min)

Operating Temperature

-40°C ~ 125°C

Mounting Type

Surface Mount

Input Voltage Max

20 V

Output Type

Adjustable, Fixed

Dropout Voltage (max)

1.1 V

Maximum Operating Temperature

+ 125 C

Mounting Style

SMD/SMT

Minimum Operating Temperature

- 40 C

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Lead Free Status / RoHS Status

Lead free / RoHS Compliant, Lead free / RoHS Compliant

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Download datasheet (461Kb)

FEATURES

Apr 20-07 Rev B

The SPX1117 is a low power positive-voltage regulator designed to satisfy moderate power

requirements with a cost effective, small footprint solution. This device is an excellent choice for

use in battery-powered applications and portable computers. The SPX1117 features very low

quiescent current and a low dropout voltage of 1.1V at a full load. As output current decreases,

quiescent current flows into the load, increasing efficiency. SPX1117 is available in adjustable

or fixed 1.5V, 1.8V, 2.5V,2.5V, 2.85V, 3.0V, 3.3V and 5V output voltages.

The SPX1117 is offered in several 3-pin surface mount packages: SOT-223, TO-252, TO-220

and TO-263. An output capacitor of 10µF provides unconditional stability while a smaller 2.2µF

capacitor is sufficient for most applications.

■ Guaranteed 0.8A Output Current

■ Guaranteed 1A Peak Current

■ Three Terminal Adjustable or Fixed

■ Low Quiescent Current

■ Low Dropout Voltage of 1.1V at 0.8A

■ 0.1% Line and 0.2% Load Regulation

■ Stable with 2.2uF Ceramic Capacitor

■ Overcurrent and Thermal Protection

■ Lead Free, RoHS Compliant Packages:

SOT-223,TO-252, TO-220, and TO-263

1.5V, 1.8V, 2.5V, 2.85V, 3.0V,

3.3V and 5V

800mA Low Dropout Voltage Regulator

Current Limit

Thermal Limit

SPX1117 800mA Low Dropout Voltage Regulator

–

APPLICATIONS

■ Desktop PC's Servers

■ SCSI-II Active Terminator

■ Portable/ Palm Top / Notebook

■ Cordless Phones

■ Battery Chargers

■ Disk Drives

■ Portable Consumer Equipment

■ Portable Instrumentation

■ SMPS Post-Regulator

Computers

AMP

1.25V

REF

FUNCTIONAL DIAGRAM

ADJ

ADJ/GND

~ 50µA

–

OUT

SPX1117

DESCRIPTION

Related parts for SPX1117M3-L-1-8

SPX1117M3-L-1-8 Summary of contents

Page 1

Low Dropout Voltage Regulator FEATURES ■ Guaranteed 0.8A Output Current ■ Guaranteed 1A Peak Current ■ Three Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V, 2.85V, 3.0V, 3.3V and 5V ■ Low Quiescent Current ■ Low Dropout Voltage of 1.1V ...

Page 2

Power Dissipation.......................................Internally Limited Lead Temperature (soldering, 5 seconds) Storage Temperature Range.......................-65°C to +150°C Operating Junction Temperature Range.....-40°C to +125°C Input Supply Voltage .................................................... +20V Input to Output Voltage ................................................ 18.8V ESD Rating.................................................................2kV min T = 25° ...

Page 3

T = 25° 10µF, unless otherwise specified. The Boldface applies over the full operating temperature range OUT PARAMETER CONDITIONS Adjust Pin Current Current Limit (V -V )=5V IN OUT Thermal Regulation 25°C, 30mS pulse ...

Page 4

... IN C =2.2µF Tan Cap OUT 0 0.1 0.2 0.3 0.5 0.6 0.7 0.4 Time (ms) Figure 5. Current Limit for SPX1117M3-3.3, Output Voltage Deviation with I =10mA to 1A Step OUT Apr 20-07 Rev B TYPICAL PERFORMANCE CHARACTERISTICS 3.325 3.320 3.315 3.310 3.305 3.300 4.5 1000 Figure 2. Line Regulation for SPX1117M3-3.3 ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS: Continued 1.53 1.52 1.51 1.5 1.49 1.48 1.47 -50 -30 - Temp (C) Figure 7. V =3.0V, I =10mA IN OUT 2.55 2.54 2.53 2.52 2.51 2.5 2.49 2.48 2.47 2.46 2.45 -50 -30 ...

Page 6

Output Capacitor To ensure the stability of the SPX1117, an output capacitor of at least 2.2µF (tantalum or ceramic) or 10µF (aluminum) is required. The value may change based on the application requirements of the output load or temperature range. ...

Page 7

Thermal Characteristics The thermal resistance of SPX1117 (SOT-223 Package) is 15°C/W from junction to tab and 31 °C/W from tab to ambient for a total of 46 °C/W from junction to ambient (Table 1). The SPX1117 features the internal thermal ...

Page 8

TABLE 1 PC BOARD TOPSIDE COPPER 2500 2500 2500 1250 2500 950 2500 2500 2500 1800 1600 600 2500 1250 2500 915 1600 600 900 240 900 240 Output Voltage The output of the adjustable regulator can ...

Page 9

SPX1117 (Note OUT IN + 4.7µF ADJ improves ripple rejection. 1kΩ should ripple frequency Note (Intended V DROPOUT (MAX) ...

Page 10

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Page 12

Page 13

Page 14

... Part Number SPX1117HM3/TR SPX1117HM3-L/TR SPX1117HM3-L-1-8/TR SPX1117M3 SPX1117M3/TR SPX1117M3-1-5/TR SPX1117M3-1-8/TR SPX1117M3-2-5/TR SPX1117M3-2-85 SPX1117M3-3-0/TR SPX1117M3-3-3/TR SPX1117M3-5-0/TR SPX1117M3-L SPX1117M3-L/TR SPX1117M3-L-1-5 SPX1117M3-L-1-5/TR SPX1117M3-L-1-8/TR SPX1117M3-L-2-5/TR SPX1117M3-L-2-85/TR SPX1117M3-L-3-0 SPX1117M3-L-3-0/TR SPX1117M3-L-3-3/TR SPX1117M3-L-5-0/TR SPX1117R SPX1117R/TR SPX1117R-1-5 SPX1117R-1-5/TR SPX1117R-1-8 SPX1117R-1-8/TR SPX1117R-2-5 SPX1117R-2-5/TR SPX1117R-2-85 SPX1117R-2-85/TR SPX1117R-3-0 SPX1117R-3-0/TR SPX1117R-3-3 SPX1117R-3-3/TR SPX1117R-L SPX1117R-L/TR ...

Page 15

Part Number SPX1117T SPX1117T/TR SPX1117T-1-5 SPX1117T-1-5/TR SPX1117T-1-8 SPX1117T-1-8/TR SPX1117T-2-5 SPX1117T-2-5/TR SPX1117T-2-85 SPX1117T-3-0 SPX1117T-3-0/TR SPX1117T-3-3 SPX1117T-3-3/TR SPX1117T-L SPX1117T-L/TR SPX1117T-L-1-5 SPX1117T-L-1-5/TR SPX1117T-L-1-8 SPX1117T-L-1-8/TR SPX1117T-L-2-5 SPX1117T-L-2-5/TR SPX1117T-L-2-85 SPX1117T-L-2-85/TR SPX1117T-L-3-0 SPX1117T-L-3-0/TR SPX1117T-L-3-3 SPX1117T-L-3-3/TR SPX1117U SPX1117U-1-5 SPX1117U-1-8 SPX1117U-2-5 SPX1117U-2-85 SPX1117U-3-0 SPX1117U-3-3 SPX1117U-L SPX1117U-L-1-5 SPX1117U-L-1-8 SPX1117U-L-2-5 ...

Page 16

... CF SPX1117HM3-L-3-0/TR CF SPX1117HM3-L-3-3 CF SPX1117HM3-L-3-3/TR CF SPX1117HM3-L-5-0 CF SPX1117HM3-L-5-0/TR CF SPX1117M3-1-5 CF_ SPX1117M3-1-8 CF_ SPX1117M3-2-5 CF_ SPX1117M3-3-0 CF_ SPX1117M3-3-3 CF_ SPX1117M3-5-0 CF_ SPX1117M3-L-1-8 CF_ SPX1117M3-L-2-5 CF_ SPX1117M3-L-2-85 CF_ SPX1117M3-L-3-3 CF_ SPX1117M3-L-5-0 CF_ SPX1117HM3-1-5/TR OBS SPX1117HM3-1-8 OBS SPX1117HM3-1-8/TR OBS SPX1117HM3-2-5/TR OBS SPX1117HM3-2-85 OBS SPX1117HM3-2-85/TR OBS SPX1117HM3-3-0 OBS ...

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