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| 5.0 AMP LOW DROPOUT POSITIVE VOLTAGE REGULATORS April 7, 1998 EZ1585B TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com DESCRIPTION The EZ1585B is a high performance positive voltage regulator designed for use in applications requiring low dropout performance at full rated current. Additionally, the EZ1585B provides excellent regulation over variations in line, load and temperature. Outstanding features include low dropout performance at rated current, fast transient response, internal current limiting and thermal shutdown protection of the output device. The EZ1585B has tight tolerance on reference voltage, 1% at 25C and 1.5% over line, load and temperature. The EZ1585B is a three terminal regulator with adjustable output voltage available in the popular TO-220 package. FEATURES *= Low dropout performance, 1.3V max. *= Full current rating over line and temperature *= Fast transient response *= 1.5% total output regulation over line, load and *= *= *= *= *= temperature Adjust pin current max. 100A over temperature Adjustable output voltage Line regulation typically 0.015% Load regulation typically 0.05% TO-220 package APPLICATIONS *= Pentium(R) Processor supplies ORDERING INFORMATION BLOCK DIAGRAM DEVICE EZ1585BCT PACKAGE TO-220 VOUT VOLTS 1.30 to 5.7 ABSOLUTE MAXIMUM RATINGS Parameter Input Supply Voltage Power Dissipation Thermal Resistance Junction to Case Control Power Thermal Resistance Junction to Ambient Operating Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering) 10 Sec Symbol VIN PD Maximum 7 Internally Limited Units V W JC JA TJ TSTG TLEAD PIN CONFIGURATION 0.7 3.0 50 0 to 125 -65 to 150 260 C/W C/W C C C Pentium Processor is a trademark of Intel Corp. 1 (c) 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 5.0 AMP LOW DROPOUT POSITIVE VOLTAGE REGULATORS April 7, 1998 EZ1585B ELECTRICAL CHARACTERISTICS Unless otherwise specified, Adj IO = 10mA to 5.0A; 1.3V =(VIN - VOUT) =2V Test Conditions Parameter Reference Voltage (1) (1) Test Limits TJ (5) Symbol VREF REG(LINE) REG(LOAD) VD ICL TC IADJ IADJ TS IO VN (4) VIN IO Min 1.238 1.231 Typ 1.250 1.250 0.015 0.035 0.05 0.2 1 1.1 Max 1.262 1.269 0.2 0.2 0.3 0.4 Units V 25C O.T. Note 6 10mA 5V 25C O.T. 25C O.T. Adj Voltage Version Line Regulation % Adj Voltage Version Load Regulation(1) (2) % Dropout Voltage 25C O.T. V 1.3 A Current Limit Temperature Coefficient Adjust Pin Current O.T. Note 6 Note 6 25C O.T. 5.0 0.005 40 20 0.2 0.5 5 0.003 60 72 10 55 80 100 5 %/C A Adjust Pin Current Change Temperature Stability Minimum Load Current Adj Voltage Version RMS Output Noise(3) Ripple Rejection Ratio O.T. 5V 5V Note 6 5V 5.0A 0.5A O.T. O.T. 25C O.T. A % mA %VO dB RA NOTES: (1) Low duty cycle pulse testing with Kelvin connections required. (2) VOUT, VREF = 1% (3) Bandwidth of 10 Hz to 10 kHz. (4) 120 Hz input ripple, COUT = 25F. (5) Over Temp. (O.T.) = over specified operating junction temperature range. (6) VIN = 4.75 to 5.25V. 2 (c) 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 5.0 AMP LOW DROPOUT POSITIVE VOLTAGE REGULATORS April 7, 1998 EZ1585B TYPICAL APPLICATIONS ADJUSTABLE VOLTAGE REGULATOR (1)(2) RECOMMENDED CIRCUIT FOR THE INTEL PENTIUM PROCESSOR - P54C-VRE Pentium Processor is a trademark of Intel Corp. 3 (c) 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 5.0 AMP LOW DROPOUT POSITIVE VOLTAGE REGULATORS April 7, 1998 EZ1585B DEVICE OUTLINE - TO-220 4 (c) 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 |
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