DATASHEET NOT RECOMMENDED FOR NEW DESIGNS POSSIBLE SUBSTITUTE PRODUCT (NOT PIN-FOR-PIN) ISL80019, ISL80019A EL7535 FN7003 Rev 7.00 Monolithic 350mA Step-Down Regulator December 9, 2015 The EL7535 is a synchronous, integrated FET 350mA Features step-down regulator in a 10 Ld MSOP package. The regulator Extremely Small 350mA DC/DC Converter is internally compensated, which makes it possible to use just five tiny external components to form a complete DC/DC Max Height 1.1mm 10 Ld MSOP Package converter. The regulator operates with an input voltage range Possibly Uses Only Five Tiny External Components with from 2.5V to 6V, which accommodates supplies of 3.3V, 5V, or Fixed Output a Li-Ion battery source. The output can be externally set from Power-On-Reset Output (POR) 0.8V to V with a resistive divider. IN Internally-Compensated Voltage Mode Controller The EL7535 features PWM mode control. The operating frequency is typically 1.4MHz. Additional features include Up to 94% Efficiency <1A shut-down current, short-circuit protection, and <1A Shut-Down Current over-temperature protection. Overcurrent and Over-Temperature Protection The EL7535 is available in the 10 Ld MSOP package and is Pb-free Available (RoHS compliant) specified for operation over the full -40C to +85C temperature range. Applications Ordering Information PDA and Pocket PC Computers PART PART PKG. Bar Code Readers NUMBER MARKING PACKAGE DWG. Cellular Phones EL7535IYZ* BAACA 10 Ld MSOP MDP0043 (Note) (Pb-free) Portable Test Equipment *Add -T7 or -T13 suffix for tape and reel. Please refer to TB347 Li-Ion Battery Powered Devices for details on reel specifications. Small Form Factor (SFP) Modules NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets molding compounds/die attach materials and 100% matte tin plate PLUS ANNEAL - e3 termination Typical Application Diagram finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL V V L (2.5V TO 5.5V) O S 1 classified at Pb-free peak reflow temperatures that meet or exceed VIN LX 1.8H the Pb-free requirements of IPC/JEDEC J STD-020. R 100 3 C 1 VDD 10F C C 2 3 Pinout 10F 0.1F EL7535 EL7535 R 100k (10 LD MSOP) 5 R * 1 POR TOP VIEW 124k C 4 EN FB 470pF 1 SGND FB 10 R 100k 4 RSI R * 2 100k R 2 PGND VO 9 6 100k PGND 3 LX POR 8 SGND VO (1.8V 350mA) 4 VIN EN 7 *V = 0.8V*(1 + R /R ) O 1 2 5 6 VDD RSI FN7003 Rev 7.00 Page 1 of 10 December 9, 2015EL7535 Absolute Maximum Ratings (T = +25C) Thermal Information A V , V , POR to SGND -0.3V to +6.5V Operating Ambient Temperature -40C to +85C IN DD LX to PGND -0.3V to (V + +0.3V) Storage Temperature -65C to +150C IN RSI, EN, V , FB to SGND . -0.3V to (V + +0.3V) Junction Temperature +125C O IN PGND to SGND . -0.3V to +0.3V Pb-free reflow profile see link below Peak Output Current . 500mA