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EZ1587I Datasheet(PDF) 1 Page - Semtech Corporation |
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EZ1587I Datasheet(HTML) 1 Page - Semtech Corporation |
1 / 6 page 1 www.semtech.com EZ1587C & EZ1587I 3 Amp Positive Voltage Regulator POWER MANAGEMENT Revision: April 26, 2006 The EZ1587 series of high performance positive voltage regulators are designed for use in applications requiring low dropout performance at up to 3A. Additionally, the EZ1587 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. A variety of options are available for maximum flexibility: the EZ1587C is intended for commercial applications and has both fixed and adjustable voltage options; the EZ1587I is intended for industrial applications and is adjustable only. All devices are available in the popular TO-220 and TO-263 packages. Low dropout voltage: 1.3V max. for EZ1587C and 1.4V max. for EZ1587I Full current rating over line and temperature Fast transient response ±2% total output regulation over line, load and temperature Adjust pin current max 90µA over temperature Fixed/adjustable output voltage (EZ1587C) Line regulation typically 0.015% Load regulation typically 0.05% Industrial temperature range (EZ1587I) TO-220 and TO-263 packages. Available in RoHS compliant package Printer and plotter supplies Instrumentation Medical equipment Microcontroller systems Telecommunication systems Motherboards Switching supply post regulation Description Features Applications Fixed Voltage Regulator Adjustable Voltage Regulator Typical Application Circuit VIN > 4.75V VOUT = 3.45V VOUT = 3.3V VIN > 4.75V U1 EZ1587 1 2 3 ADJ OUT IN TAB + C2 10uF Tant. Min. R1 133 Ohm, 1% + C1 10uF Tant. U1 EZ1587C-3.3 1 2 3 GND OUT IN TAB R2 232 Ohm, 1% + C1 10uF Tant. + C2 10uF Tant. Min Notes: (1) C1 needed if device is far from filter capacitors (2) C2 minimum value required for stability 2 R I 1 R 2 R 1 V V ADJ REF OUT • + + • = |
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