LX8584B-33CV

LX8584B-33CV Datasheet

LX8584-xx/8584A-xx/8584B-xx

Part	Datasheet
LX8584B-33CV	LX8584B-33CV (pdf)

Related Parts	Information
LX8584-00CV	LX8584-00CV
LX8584-33CV	LX8584-33CV
LX8584A-00CV	LX8584A-00CV
LX8584A-33CV	LX8584A-33CV
LX8584B-00CV	LX8584B-00CV

PDF Datasheet Preview
L I N D O C # 8584 LX8584-xx/8584A-xx/8584B-xx 7A LOW DROPOUT POSITIVE REGULATORS PR O D U C T I O N DATASHEET The LX8584/84A/84B series ICs are low dropout three-terminal positive regulators with a nominal 7A output current. This product family is ideally suited for Processor and Power PCTM applications requiring fast transient response. The LX8584A is guaranteed to have < 1.2V at 7A and the LX8584/84B < 1.4V at 7A dropout voltage, making them ideal to provide well regulated outputs of 2.5V to 3.6V using a 5V input supply. In addition, the LX8584B also offers ±1% maximum voltage reference accuracy over temperature. Fixed versions are also available and are specified in the Available Options table below. Current limit is trimmed above 7.1A to ensure adequate output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload that would create excessive junction temperatures. The LX8584/84A series products are available in both the through-hole versions of the industry standard 3-pin TO-220 and TO-247 power packages. The LX1431 Programmable Reference in conjunction with the LX8584 7A LDO products offer precision output voltage see application below and are ideal for use in VRE applications. PRODUCT HIGHLIGHT THE APPLICATION OF THE LX8584A & LX1431 IN A 75 & 166MHZ P54C PROCESSORS USING 3.3V CACHE VOUT LX8584A 1kW VO 7A See Table Below 3x 330µF, 6.3V Low ESR PLACE IN µP SOCKET CAVITY ADJ 1 250pF 0.01µF 1kW Oscon Type from Sanyo 100µF x 6 10V 220µF 10V 2 3 V+ 1 COL REF 8 AVX TYPE TPS µP Load Low ESR from Sanyo LX1431 2.84kW 0.1µF 50V SGND FGND 1µF x 10 SMD KEY FEATURES s THREE-TERMINAL ADJUSTABLE OR FIXED OUTPUT s GUARANTEED 1% VOLTAGE ACCURACY OVER TEMPERATURE LX8584B s GUARANTEED 1.2V HEADROOM AT 7A LX8584A s GUARANTEED 1.4V HEADROOM AT 7A LX8584/84B s OUTPUT CURRENT OF 7A p FAST TRANSIENT RESPONSE p 1% VOLTAGE REFERENCE INITIAL ACCURACY p OUTPUT SHORT CIRCUIT PROTECTION p BUILT-IN THERMAL SHUTDOWN s EVALUATION BOARD AVAILABLE: REQUEST LXE9001 EVALUATION KIT A P L I C AT I O N S s PENTIUM PROCESSOR SUPPLIES s POWER PC SUPPLIES s MICROPROCESSOR SUPPLIES s LOW VOLTAGE LOGIC SUPPLIES s POST REGULATOR FOR SWITCHING SUPPLY

PDF Datasheet Preview

L I N D O C # 8584

LX8584-xx/8584A-xx/8584B-xx
7A LOW DROPOUT POSITIVE REGULATORS PR O D U C T I O N DATASHEET

The LX8584/84A/84B series ICs are low dropout three-terminal positive regulators with a nominal 7A output current. This product family is ideally suited for Processor and Power PCTM applications requiring fast transient response. The LX8584A is guaranteed to have < 1.2V at 7A and the LX8584/84B < 1.4V at 7A dropout voltage, making them ideal to provide well regulated outputs of 2.5V to 3.6V using a 5V input supply. In addition, the LX8584B also offers ±1% maximum voltage reference accuracy over temperature. Fixed versions are also available and are specified in the Available Options table below.

Current limit is trimmed above 7.1A to ensure adequate output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload that would create excessive junction temperatures.

The LX8584/84A series products are available in both the through-hole versions of the industry standard 3-pin TO-220 and TO-247 power packages.

The LX1431 Programmable Reference in conjunction with the LX8584 7A LDO products offer precision output voltage see application below and are ideal for use in VRE applications.

PRODUCT HIGHLIGHT

THE APPLICATION OF THE LX8584A & LX1431 IN A 75 & 166MHZ P54C PROCESSORS USING 3.3V CACHE

VOUT

LX8584A 1kW

VO 7A See Table Below
3x 330µF, 6.3V

Low ESR

PLACE IN µP SOCKET CAVITY

ADJ 1 250pF
0.01µF 1kW

Oscon Type from Sanyo
100µF x 6 10V
220µF 10V
2 3 V+
1 COL

REF 8

AVX TYPE TPS
µP Load

Low ESR from Sanyo

LX1431
2.84kW
0.1µF 50V

SGND FGND
1µF x 10 SMD

KEY FEATURES
s THREE-TERMINAL ADJUSTABLE OR FIXED OUTPUT
s GUARANTEED 1% VOLTAGE ACCURACY OVER TEMPERATURE LX8584B
s GUARANTEED 1.2V HEADROOM AT 7A LX8584A
s GUARANTEED 1.4V HEADROOM AT 7A LX8584/84B
s OUTPUT CURRENT OF 7A p FAST TRANSIENT RESPONSE p 1% VOLTAGE REFERENCE INITIAL

ACCURACY p OUTPUT SHORT CIRCUIT PROTECTION p BUILT-IN THERMAL SHUTDOWN s EVALUATION BOARD AVAILABLE:

REQUEST LXE9001 EVALUATION KIT

A P L I C AT I O N S
s PENTIUM PROCESSOR SUPPLIES s POWER PC SUPPLIES s MICROPROCESSOR SUPPLIES s LOW VOLTAGE LOGIC SUPPLIES s POST REGULATOR FOR SWITCHING SUPPLY

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Datasheet ID: LX8584B-33CV 648168