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| 2.0 AMP LOW DROPOUT POSITIVE VOLTAGE REGULATORS April 7, 1998 EZ1588 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com DESCRIPTION The EZ1588 series of high performance positive voltage regulators are designed for use in applications requiring low dropout performance at full rated current. Additionally, the EZ1588 series 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 EZ1588 series are three terminal regulators with fixed and adjustable voltage options available in popular packages. FEATURES *= Low dropout performance, *= Full current rating over line and temperature *= Fast transient response *= 2% total output regulation over line, load *= *= *= *= *= and temperature Adjust pin current max. 90A over temperature Fixed/adjustable output voltage Line regulation typically 0.005% Load regulation typically 0.05% TO-220 or TO-263 packages 1.3V max. for EZ1588 ORDERING INFORMATION APPLICATIONS *= Pentium(R) Processor supplies *= PowerPCTM supplies *= Other 2.5V to 3.6V microprocessor supplies *= Low voltage logic supplies *= Battery-powered circuitry *= Post regulator for switching supply BLOCK DIAGRAM DEVICE EZ1588CT-X.X EZ1588CM-X.X PACKAGE TO-220 TO-263 (2) VOUT VOLTS See Note (1) See Note (1) Notes: (1) Where X.X denotes voltage options. Available voltages are: 2.5V and 3.3V. Leave blank for adjustable version (1.3 to 5.7V). Contact factory for additional voltage options. (2) Add suffix `TR' for tape and reel (TO-263). ABSOLUTE MAXIMUM RATINGS Parameter Input Supply Voltage Power Dissipation Thermal Resistance Junction to Case TO-220 TO-263 Thermal Resistance Junction to Ambient TO-220 TO-263 Operating Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering) 10 Sec Symbol VIN PD Maximum 7 Internally Limited Units V W JC PIN CONFIGURATIONS 3 3 C/W JA TJ TSTG TLEAD 50 60 0 to 125 -65 to 150 260 C/W C C C Pentium Processor is a trademark of Intel Corp. PowerPC is a trademark of IBM Corp. 1 (c) 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 2.0 AMP LOW DROPOUT POSITIVE VOLTAGE REGULATORS April 7, 1998 EZ1588 ELECTRICAL CHARACTERISTICS Unless otherwise specified, Adj VIN = 2.75 to 7.0V and ADJ IO = 10mA to 2.0A; Fixed VIN = 4.75 to 7.0V and Fixed IO = 0mA to 2.0A Test Conditions Parameter Output Voltage (1) Test Limits TJ (5) Symbol VO (1) VIN 5V IO 0mA Min 0.99|VO| 0.98|VO| 1.238 1.225 Typ VO VO 1.250 1.250 0.005 0.035 Max 1.01|VO| 1.02|VO| 1.262 1.275 0.2 0.2 Units V 25C O.T. Fixed Voltage Version Reference Voltage (1) VREF REG(LINE) 5V 10mA 25C O.T. 25C V Adj Voltage Version Line Regulation % Fixed Voltage Version Adj Voltage Version Load Regulation (1) 0mA 10mA REG(LOAD) VD ICL IQ TC IADJ 5V 5V O.T. 25C O.T. 0.05 0.2 1 1.1 2.0 2.5 10 0.004 55 0.3 0.4 % Dropout Voltage (2) 25C O.T. V 1.3 A 13 0.02 mA %/C A 90 Current Limit Quiescent Current Fixed Voltage Version Temperature Coefficient Adjust Pin Current O.T. O.T. O.T. 25C O.T. Adjust Pin Current Change Temperature Stability Minimum Load Current Adj Voltage Version RMS Output Noise(3) Ripple Rejection Ratio(4) IADJ TS IO VN RA 5V 2.0A 5V 5V 0.5A O.T. O.T. O.T. 25C O.T. 60 0.2 0.5 5 0.003 72 5 A % 10 mA %VO dB 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, (CADJ for ADJ = 25F). (5) Over Temp. (O.T.) = over specified operating junction temperature range. 2 (c) 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 2.0 AMP LOW DROPOUT POSITIVE VOLTAGE REGULATORS April 7, 1998 EZ1588 TYPICAL APPLICATIONS FIXED VOLTAGE REGULATOR (1)(2) ADJUSTABLE VOLTAGE REGULATOR (1)(2) 3 (c) 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 2.0 AMP LOW DROPOUT POSITIVE VOLTAGE REGULATORS April 7, 1998 EZ1588 DEVICE OUTLINE - TO-220 DEVICE OUTLINE - TO-263 4 (c) 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 |
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