EZ1584C & EZ1584I 7.0 Amp Low Dropout Positive Voltage Regulators POWER MANAGEMENT Description Features The EZ1584 is a high performance positive voltage ‹ Low dropout performance: 1.3V max. for EZ1584C regulator designed for use in applications requiring low and 1.4V max. for EZ1584I dropout performance at 7A. Additionally, the EZ1584 ‹ Full current rating over line and temperature series provides excellent regulation over variations in line, ‹ Fast transient response load and temperature. ‹ ±2% total output regulation over line, load and temperature Outstanding features include low dropout performance ‹ Adjust pin current max 90µA over temperature at rated current, fast transient response, internal ‹ Fixed/adjustable output voltage current limiting and thermal shutdown protection of the ‹ Line regulation typically 0.015% output device. ‹ Load regulation typically 0.05% ‹ Industrial temperature range (EZ1584I) The EZ1584 is an excellent choice for powering ‹ TO-220 package microprocessor systems. Using an LDO eliminates MOSFETs and inductors, saving both space and cost. An Applications LDO also provides better transient response and no ripple. ‹ Memory supply ‹ Graphics core supply A variety of options are available for maximum flexibility: ‹ Other 2.5V to 3.6V microprocessor supplies the EZ1584C is intended for commercial applications and ‹ Low voltage logic supplies has both fixed and adjustable voltage options; the ‹ Battery-powered circuitry EZ1584I is intended for industrial applications and has ‹ Post regulator for switching supply a 3.3V fixed and an adjustable option. All devices are ‹ Telecom supplies available in the popular TO-220 package. ‹ Industrial supplies Typical Application Circuit Fixed Voltage Regulator U1 EZ1584-3.3 3 2 TAB VIN > 4.75V VOUT = 3.3V IN OUT + + C1 C2 10uF Tant. GND 10uF Tant. Min. 1 Adjustable Voltage Regulator U1 EZ1584 3 2 TAB VIN > 4.75V VOUT = 3.3V IN OUT + + C1 R1 C2 10uF Tant. ADJ 124 Ohm, 1% 10uF Tant. Min 1 R2 205 Ohm, 1%  R2 V = V • 1+ + I • R2   Notes: OUT REF ADJ R1   (1) C1 needed if device is far from filter capacitors (2) C2 minimum value required for stability June 23, 2010 1 www.semtech.com EZ1584C & EZ1584I POWER MANAGEMENT Absolute Maximum Ratings Pl arameter Sm ymbo Ms aximu Unit IV nput Supply Voltage 7V IN PP ower Dissipation IW nternally Limited D Thermal Resistance Junction to Case 2W °C/ θ JC Thermal Resistance Junction to Ambient θ 5W 0 °C/ JA Operating Ambient Temperature Range EZ1584C T 0 to 70 °C A EZ1584I -40 to 85 Operating Junction Temperature Range EZ1584C T 0 to 125 °C J EZ1584I -40 to 125 ST torage Temperature Range -C 65 to 150 ° STG LT ead Temperature (Soldering) 10 Sec. 3C 00 ° LEAD ED SD Rating (Human Body Model) E2 S kV Electrical Characteristics Unless otherwise specified: Adj. V = 2.75V to 7.0V and Adj. I = 10mA to 7.0A; Fixed V = 4.75 to 7.0V and Fixed I = 0 mA to 7.0A. IN O IN O Values in bold apply over full operating ambient temperature range. Pl arameter SV ymbo I Mp in Tx y Ms a Unit IN O (1) Output Voltage V 5A V0V m 0.99llV 1.01lVlV O O O O EZ1584C-X.X, EZ1584I-3.3 0.98lV lV 1.02l l O O (1) Reference Voltage V 5A V18 0m10 .2312 .25 1V .26 REF EZ1584C, EZ1584I 15 .225 1.27 (1) Line Regulation REG 15 0mA 0.01 0.2 % (LINE) (1) Load Regulation REG55 V 0.0 0.4 % (LOAD) (1)(2) Dropout Voltage EV Z1584C, EZ1584C-X.X 70 A 1.2 1.30 V D EZ1584I, EZ1584I-3.3 1.20 1.40 CI urrent Limit 7.19A .0 CL  2001 Semtech Corp. 2 www.semtech.com EZ1584C & EZ1584I POWER MANAGEMENT Electrical Characteristics (Cont.) Unless otherwise specified: Adj. V = 2.75V to 7.0V and Adj. I = 10mA to 7.0A; Fixed V = 4.75 to 7.0V and Fixed I = 0 mA to 7.0A. IN O IN O Values in bold apply over full operating ambient temperature range. Pl arameter SV ymbo I Mp in Tx y Ms a Unit IN O Quiescent Current I50 V 1 13 mA Q Fixed Voltage Versions TT emperature Coefficient 0C .005 %/° C AI djust Pin Current 55 90 µA ADJ Adjust Pin Current Change 0.2 5 µA ΔI ADJ TT emperature Stability 5A V 0.5 0.5 % S Minimum Load Current I55 V 10 mA O Adj Voltage Versions (3) RMS Output Noise V 0V .003 % N O (4) Ripple Rejection Ratio R 5A V 7 607B 2 d A NOTES: (1) Low duty cycle pulse testing with Kelvin connections required. (2) ΔV , ΔV = 1% OUT REF (3) Bandwidth of 10 Hz to 10 kHz. (4) 120 Hz input ripple (C for ADJ = 25µF). ADJ  2001 Semtech Corp. 3 www.semtech.com EZ1584C & EZ1584I POWER MANAGEMENT Pin Configuration Ordering Information (1)(2) Device Package (3)(4) EZ1584CT-X.X TO-220 EZ1584IT-X.X Notes: (1) Where X.X denotes voltage options. Available voltages are: 1.5V, 2.5V and 3.3V for EZ1584C and 3.3V only for EZ1584I. Leave blank for adjustable version (1.3V to 5.7V). Contact factory for additional voltage options. (2) Where C and I denote Commercial (0°C to 70°C) and Industrial (-40°C to 85°C) ambient temperature ranges. (3) Only available in tube packaging. A tube contains 50 devices. (4) Halogen Free, and RoHS/WEEE compliant. Pin Descriptions Pe in Pn in Nam Pin Functio 1T ADJUS This pin is the negative side of the reference voltage for adjustable devices. Transient response can be improved by adding a small bypass capacitor from the adjust pin to ground. GROUND This pin is the bottom end of the internal resistor feedback chain for fixed output voltage parts, and should be connected to ground. 2T OUTPU This is the power output of the device and is electrically connected to the TAB. 3T INPU This is the input supply pin for both the control circuitry and the pass device. Block Diagram  2001 Semtech Corp. 4 www.semtech.com EZ1584C & EZ1584I POWER MANAGEMENT Outline Drawing - TO-220 DIM ENSIO NS Ø P IN C H E S M ILLIM ETERS aaa B A DIM MIN NOM MAX MIN NOM MAX - - A .140 .190 3.56 4.82 B - - A1 .020 .055 0.51 1.40 A2 .080 - .115 2.03 - 2.92 SEATING A E b .015 .027 .040 0.38 0.69 1.02 PLANE b2 .045 .057 .070 1.14 1.45 1.78 E2 A c - - .014 .024 0.36 0.61 E/2 A1 D .560 - .650 14.22 - 16.51 - - D1 .330 .355 8.38 9.02 - Q D2 .480 .507 12.19 - 12.88 H1 - - E .380 .420 9.65 10.66 D2 E1 .270 - .350 6.86 - 8.90 - - - - D E2 .030 0.76 e .100 B S C 2.54 B S C D1 e1 .200 B S C 5.08 B S C H1 - - .230 .270 5.84 6.86 - - L .500 .580 12.70 14.73 L1 - - - - L1 .250 6.35 C N 3 3 - - ØP .139 .156 3.53 3.96 L - - Q .100 .120 2.54 3.05 aaa .014 0.36 bbb .015 0.38 ccc .010 0.25 c 3 x b2 E1 A2 3 x b ccc B A bbb B A 2x e e1 NO TES: 1. CO NT RO L L ING DIM E NSIO N S ARE IN INCHE S. 2. DIM E NSIO NS "D " A ND "E " DO NO T INCL UD E M O L D FL A S H, PRO T RUS IO NS O R G A T E B URRS. Contact Information Semtech Corporation Power Management Products Division 652 Mitchell Rd., Newbury Park, CA 91320 Phone: (805)498-2111 FAX (805)498-3804  2001 Semtech Corp. 5 www.semtech.com