DATASHEET NOT RECOMMENDED FOR NEW DESIGNS POSSIBLE SUBSTITUTE PRODUCT (NOT PIN-FOR-PIN) ISL8002, ISL8002A EL7532 FN7435 Rev 9.00 Monolithic 2A Step-Down Regulator December 9, 2015 The EL7532 is a synchronous, integrated FET 2A step-down Features regulator with internal compensation. It operates with an 2A continuous current (from -40C to +85C) input voltage range from 2.5V to 5.5V, which accommodates 2 supplies of 3.3V, 5V, or a single Li-Ion battery source. The Less than 0.18 in footprint for the complete 2A converter output can be externally set from 0.8V to V with a resistive IN Max height 1.1mm MSOP10 divider. 1.5MHz (typ.) switching frequency The EL7532 features PWM mode control. The operating 100ms Power-On-Reset output (POR) frequency is typically 1.5MHz. Additional features include a 100ms Power-On-Reset output, <1A shut-down current Internally-compensated voltage mode controller and over-temperature protection. Up to 94% efficiency The EL7532 is available in the 10-pin MSOP package, <1A shut-down current 2 making the entire converter occupy less than 0.18 in of PCB area with components on one side only. The package is Over-temperature protection specified for operation over the full -40C to +85C Pb-free available (RoHS compliant) temperature range. Applications Ordering Information PDA and pocket PC computers TEMP. PART PART RANGE PKG. Bar code readers NUMBER MARKING (C) PACKAGE DWG. ADSL modems EL7532IYZ BAARA -40 to +85 10 Ld MSOP MDP0043 Portable instruments (Note) (Pb-free) Li-Ion battery powered devices *Add -T7 suffix for 1k unit or -T13 suffix for 2.5k unit tape and reel options. Please refer to TB347 for details on reel specifications. ASIC/FPGA/DSP supplies NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets molding compounds/die attach Set top boxes materials and 100% matte tin plate PLUS ANNEAL - e3 termination finish, which is RoHS compliant and compatible with both SnPb and Typical Application Schematic Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed V V (2.5V to 5.5V) L O S 1 the Pb-free requirements of IPC/JEDEC J STD-020. VIN LX 1.8H R 100 3 C 1 VDD Pinout 10F C C 2 3 EL7532 10F 0.1F EL7532 (10 LD MSOP) TOP VIEW R 100k 5 R * 1 POR 124k SGND FB C 1 10 4 EN FB 470pF R 100k PGND VO 4 2 9 RSI R * 2 R 100k 6 100k 3 LX POR 8 PGND SGND VO 4 VIN EN 7 (1.8V 2A) 5 VDD RSI 6 SIGNAL GROUND V = 0.8V * (1 + R / R ) O 2 1 *C4 is optional. Make sure that loop response are POWER measured in actual application. GROUND FN7435 Rev 9.00 Page 1 of 9 December 9, 2015EL7532 Absolute Maximum Ratings (T = +25C) Thermal Information A V , V , POR to SGND -0.3V to +6.5V Thermal Resistance (Typical) (C/W) IN DD JA LX to PGND -0.3V to (V + +0.3V) IN MSOP10 Package (Note 1) . 115 RSI, EN, V , FB to SGND . -0.3V to (V + +0.3V) O IN Operating Ambient Temperature -40C to +85C PGND to SGND . -0.3V to +0.3V Storage Temperature -65C to +150C Peak Output Current . 2.4A Junction Temperature +125C ESD Classification Human Body Model (Per JESD22-A114-B) Class 2 CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and result in failures not covered by warranty. NOTE: 1. is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details. JA IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: T = T = T J C A Electrical Specifications V = V = V = 3.3V, C1 = C2 = 10F, L = 1.8H, V = 1.8V, unless otherwise specified. DD IN EN O PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT DC CHARACTERISTICS V Feedback Input Voltage 790 800 810 mV FB I Feedback Input Current 250 nA FB V , V Input Voltage 2.5 5.5 V IN DD V Minimum Voltage for Shut-down V falling 2 2.2 V IN,OFF IN V Maximum Voltage for Start-up V rising 2.2 2.4 V IN,ON IN I Supply Current PWM, V = V = 5V 400 500 A DD IN DD EN = 0, V = V = 5V 0.1 1 A IN DD R PMOS FET Resistance V = 5V, wafer test only 52 80 m DS(ON)-PMOS DD R NMOS FET Resistance V = 5V, wafer test only 35 65 m DS(ON)-NMOS DD T Over-temperature Threshold (Note 2) T rising 145 C OT,OFF T Over-temperature Hysteresis (Note 2) T falling 130 C OT,ON I , I EN, RSI Current V , V = 0V and 3.3V -1 1 A EN RSI EN RSI V , V EN, RSI Rising Threshold V = 3.3V 2.4 V EN1 RSI1 DD V , V EN, RSI Falling Threshold V = 3.3V 0.8 V EN2 RSI2 DD V Minimum V for POR, WRT Targeted V rising 95 % POR FB FB V Value FB V falling 86 % FB V POR Voltage Drop I = 5mA 35 70 mV OLPOR SINK V Line Regulation (Note 2) V = 2.5V to 6V, I = 2A, V = 1.8V 0.1 %/V LINEREG IN OUT OUT V Load Regulation (Note 2) V = 3.3V, V = 1.8V, I = 0 to 2A 0.5 % LOADREG IN OUT OUT AC CHARACTERISTICS F PWM Switching Frequency 1.35 1.5 1.65 MHz PWM t Minimum RSI Pulse Width (Note 2) 25 50 ns RSI t Soft-start Time (Note 2) 650 s SS t Power On Reset Delay Time (Note 2) 80 100 120 ms POR NOTE: 2. Not production tested. FN7435 Rev 9.00 Page 2 of 9 December 9, 2015