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TCL1584

TCL1585

TCL1587

PRELIMINARY INFORMATION

7A / 5A / 4.6A / 3A, FAST RESPONSE,

LOW DROPOUT POSITIVE LINEAR

VOLTAGE REGULATORS

TCL1584/1585/1587-04 6/6/97

7A / 5A / 4.6A / 3A, FAST RESPONSE, LOW DROPOUT

POSITIVE LINEAR VOLTAGE REGULATORS

The TCL1584/1585/1587 are low dropout, positive lin-

ear voltage regulators. They have a maximum current

output specification of 7A, 5A, 4.6A and 3A respectively.

All three devices are supplied in fixed and adjustable output

voltage versions.

Good transient load response combined with low drop-

out voltage makes these devices ideal for the latest low

voltage microprocessor power supplies. Additionally, short-

circuit, thermal and safe operating area (SOA) protection is

provided internally to ensure reliable operation.

The TCL1587, TCL1585 and TCL1584 are available in

a 3-pin TO-220 tabbed power package and in a 3-pin surface

mount DDPAK-3 package.

TYPICAL OPERATING CIRCUIT

FEATURES

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Fixed and Adjustable Voltages ........ 1.5V and 3.3V

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Optimized for Low Voltage Applications

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Output Current Capability .......... 7A / 5A / 4.6A / 3A

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Guaranteed Dropout Voltage up to Full Rated

Output

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Integrated Thermal and Short-Circuit Protection

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Compact 3-Pin Surface-Mount and Thru-Hole

Standard Power Packages

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Load Regulation ............................................. 0.05%

APPLICATIONS

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Low-Voltage, High Speed Microprocessors

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Post-Regulator for Switch-Mode Power Supplies

GENERAL DESCRIPTION

ORDERING INFORMATION

Part Number

Package

Temp. Range

TCL1584-3.3CAB

TO-220-3

0

°C to + 70°C

TCL1584-3.3CEB

DDPAK-3

0

°C to + 70°C

TCL1584-ADJCAB

TO-220-3

0

°C to + 70°C

TCL1584-ADJCEB

DDPAK-3

0

°C to + 70°C

TCL1585-1.5CAB

TO-220-3

0

°C to + 70°C

TCL1585-1.5CEB

DDPAK-3

0

°C to + 70°C

TCL1585-3.3CAB

TO-220-3

0

°C to + 70°C

TCL1585-3.3CEB

DDPAK-3

0

°C to + 70°C

TCL1585-ADJCAB

TO-220-3

0

°C to + 70°C

TCL1585-ADJCEB

DDPAK-3

0

°C to + 70°C

TCL1587-1.5CAB

TO-220-3

0

°C to + 70°C

TCL1587-1.5CEB

DDPAK-3

0

°C to + 70°C

TCL1587-3.3CAB

TO-220-3

0

°C to + 70°C

TCL1587-3.3CEB

DDPAK-3

0

°C to + 70°C

TCL1587-ADJCAB

TO-220-3

0

°C to + 70°C

TCL1587-ADJCEB

DDPAK-3

0

°C to + 70°C

TCL1584

TCL1585

TCL1587

TCL1584/1585/1587-04 6/6/97

TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices.

TCL158x-3.3

GND

C1 = 10

µF

C2*

(Tantalum)

Fixed Output Voltage Version

(1+ R1/R2)V

REF

TCL158x

ADJ

C1 = 10

µF

C2*

(Tantalum)

Adjustable Output Voltage Version

*NOTE:

C2 is required to ensure output stability. Minimum 22

µF (TCL1584) or 10µF (TCL1585/7),

low ESR tantalum type. Larger values may be required for high output current transient

regulation. See

Applications section.

R1

R2

PIN CONFIGURATIONS

*All Trademarks and Trade Names are the property of their respective owners.

12

3

12

3

TCL1584CAB

TCL1585CAB

TCL1587CAB

TCL1584CEB

TCL1585CEB

TCL1587CEB

TO-220-3

DDPAK-3

NOTE: For TO-220

Θ

are specified without external heat sinks. See Applications Section for details.