DATASHEET EL7530 FN7434 Rev 6.00 Monolithic 600mA Step-Down Regulator with Low Quiescent Current July 12, 2006 The EL7530 is a synchronous, integrated FET 600mA step- Features down regulator with internal compensation. It operates with an 2 Less than 0.18in footprint for the complete 600mA input voltage range from 2.5V to 5.5V, which accommodates converter supplies of 3.3V, 5V, or a Li-Ion battery source. The output can be externally set from 0.8V to V with a resistive divider. Components on one side of PCB IN Max height 1.1mm MSOP10 The EL7530 features automatic PFM/PWM mode control, or PWM mode only. The PWM frequency is typically 1.4MHz Power-Good (PG) output and can be synchronized up to 12MHz. The typical no load Internally-compensated voltage mode controller quiescent current is only 120A. Additional features include a Power-Good output, <1A shut-down current, short-circuit Up to 95% efficiency protection, and over-temperature protection. <1A shut-down current The EL7530 is available in the 10 Ld MSOP package, 120A quiescent current 2 making the entire converter occupy less than 0.18n of PCB Overcurrent and over-temperature protection area with components on one side only. The 10 Ld MSOP package is specified for operation over the full -40C to External synchronizable up to 12MHz +85C temperature range. Pb-free plus anneal available (RoHS compliant) Ordering Information Applications PART TAPE & PKG. PART NUMBER MARKING REEL PACKAGE DWG. PDA and pocket PC computers EL7530IY BYAAA - 10 Ld MSOP MDP0043 Bar code readers EL7530IY-T7 BYAAA 7 10 Ld MSOP MDP0043 Cellular phones EL7530IY-T13 BYAAA 13 10 Ld MSOP MDP0043 EL7530IYZ BAADA - 10 Ld MSOP MDP0043 Portable test equipment (Note) (Pb-free) Li-Ion battery powered devices EL7530IYZ-T7 BAADA 7 10 Ld MSOP MDP0043 (Note) (Pb-free) Small form factor (SFP) modules EL7530IYZ-T13 BAADA 13 10 Ld MSOP MDP0043 Typical Application Diagram (Note) (Pb-free) EL7530 NOTE: Intersil Pb-free plus anneal products employ special Pb-free TOP VIEW material sets molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and V V (2.5V to 5.5V) L O S 1 compatible with both SnPb and Pb-free soldering operations. Intersil VIN LX 1.8H Pb-free products are MSL classified at Pb-free peak reflow R 100 3 temperatures that meet or exceed the Pb-free requirements of C 1 VDD 10F IPC/JEDEC J STD-020. C C 2 3 10F 0.1F EL7530 Pinout R 100k EL7530 (10 LD MSOP) 5 R * 1 PG TOP VIEW 124k C 4 EN FB 470pF 1 SGND FB 10 R 100k 4 SYNC R * 2 100k R 2 PGND VO 9 6 100k PGND 3 LX PG 8 SGND VO (1.8V 600mA) 4 VIN EN 7 5 VDD SYNC 6 * V = 0.8V * (1 + R / R ) O 1 2 FN7434 Rev 6.00 Page 1 of 11 July 12, 2006 NOT REC M D OR N OM EN ED F EW DESIGNS POSSIBLE B I U E OD C SU ST T T PR U T (NOT P N OR N I 9106 I -F -PI ) SLEL7530 Absolute Maximum Ratings (T = 25C) Thermal Information A V , V , PG 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 MSOP Package (Note 1) . 115 SYNC, 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 . 800mA Junction Temperature +125C CAUTION: Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. 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 NOTE: 1. is measured in free air with the component mounted on a high effective thermal conductivity test board with direct attach features. See JA Tech Brief TB379. Electrical Specifications V = V = V = 3.3V, C = C = 10F, L = 1.8H, V = 1.8V (as shown in Typical Application Diagram), DD IN EN 1 2 O unless otherwise specified. PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT DC CHARACTERISTICS V Feedback Input Voltage PWM Mode 790 800 810 mV FB I Feedback Input Current 100 nA FB V , V Input Voltage 2.5 5.5 V IN DD V Minimum Voltage for Shutdown V falling 2 2.2 V IN,OFF IN V Maximum Voltage for Startup V rising 2.2 2.4 V IN,ON IN I Input Supply Quiescent Current S Active - PFM Mode V = 0V 120 145 A SYNC Active - PWM Mode V = 3.3V 6.5 7.5 mA SYNC 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 70 100 m DS(ON)-PMOS DD R NMOS FET Resistance V = 5V, wafer test only 45 75 m DS(ON)-NMOS DD I Current Limit 1.2 A LMAX T Over-temperature Threshold T rising 145 C OT,OFF T Over-temperature Hysteresis T falling 130 C OT,ON I , I EN, SYNC Current V , V = 0V and 3.3V -1 1 A EN SYNC EN RSI V , V EN, SYNC Rising Threshold V = 3.3V 2.4 V EN1 SYNC1 DD V , V EN, SYNC Falling Threshold V = 3.3V 0.8 V EN2 SYNC2 DD V Minimum V for PG, WRT Targeted V rising 95 % PG FB FB V Value FB V falling 86 % FB V PG Voltage Drop I = 3.3mA 35 70 mV OLPG SINK AC CHARACTERISTICS F PWM Switching Frequency 1.25 1.4 1.6 MHz PWM t Minimum SYNC Pulse Width Guaranteed by design 25 ns SYNC t Soft-start Time 650 s SS FN7434 Rev 6.00 Page 2 of 11 July 12, 2006