EP5348UI

DataSheeT – enpirion® power solutions EP5348UI 400mA PowerSoC Step-Down DC-DC Switching Converter with Integrated Inductor DESCRIPTION FEATURES The EP5348UI delivers the optimal trade-off between footprint and efficiency. It is a perfect alternative to replace less efficient LDOs in space constrained applications that require improved efficiency. • Integrated Inductor Technology • 400mA continuous output current • 2.0mm x 1.75mm x 0.9mm uQFN package • Small Solution Footprint • Efficiency, up to 90% • VOUT Range 0.6V to VIN – VDROP_OUT • Short circuit and over current protection • UVLO and thermal protection • IC level reliability in a PowerSoC solution The EP5348UI is a 400mA PowerSoC which integrates MOSFET switches, control, compensation, and the magnetics in a micro-QFN Package. This highly integrated DC-DC solution offers up to 46points better efficiency than the comparable LDO. A significant reduction in power loss and improved thermals are achieved. It enables extended battery life and helps Meet Energy Star requirements. Integrated magnetics enables a tiny solution footprint, low output ripple, and high reliability, while maintaining high efficiency. The complete solution size is similar to an LDO and much smaller than a comparable DC-DC. All Enpirion products are RoHS compliant and leadfree manufacturing environment compatible. APPLICATIONS Applications where poor LDO efficiency creates: • o Thermal challenges o Failure to meet Energy Star requirements o Battery Life challenges • Space-constrained applications • Portable media players and USB peripherals 95 VIN = 5.0V VOUT = 1.2V 85 AVIN 0.1µF CAVIN VOUT CA EP5348 ENABLE AGND RA VFB PGND COUT 10µF 0603 75 Efficiency (%) VIN CIN 2.2µF 0603 VOUT PVIN EP5348UI LDO RB 65 55 Δ = 46-points 45 35 25 15 0.0 0.1 0.2 0.3 Load Current (A) Figure 1: Simplified Applications Circuit Figure 2: Highest Efficiency in Smallest Solution Size Page 1 05721 January 9, 2019 Rev E Datasheet | Intel® Enpirion® Power Solutions: EP5348UI ORDERING INFORMATION Part Number Package Markings TJ Rating Package Description EP5348UI ATXX -40 to +125 16-pin (2.5mm x 2.25mm x 1.1mm) uQFN EVB-EP5348UI-E QFN Evaluation Board Packing and Marking Information: https://www.intel.com/content/www/us/en/products/programmable.html NC(SW) NC(SW) PIN FUNCTIONS 14 13 NC(SW) 1 12 PVIN PGND 2 11 AVIN NC 3 VFB 4 AGND 5 6 7 VOUT VOUT EP5348UI 10 ENABLE 9 NC 8 NC Figure 3: EP5348UI Pin Out Diagram (Top View) NOTE A: NC pins are not to be electrically connected to each other or to any external signal, ground, or voltage. However, they must be soldered to the PCB. Failure to follow this guideline may result in part malfunction or damage. NOTE B: Black ‘dot’ on top left is pin 1 indicator on top of the device package. Page 2 05721 January 9, 2019 Rev E Datasheet | Intel® Enpirion® Power Solutions: EP5348UI PIN DESCRIPTIONS PIN NAME TYPE FUNCTION 1,15, 14 NC(SW) Analog NO CONNECT – These pins are internally connected to the common switching node of the internal MOSFETs. NC (SW) pins are not to be electrically connected to any external signal, ground, or voltage. However, they must be soldered to the PCB. Failure to follow this guideline may result in part malfunction or damage to the device. 2 PGND Ground Power ground. Connect this pin to the ground electrode of the Input and output filter capacitors. 3, 8, 9 NC Analog NO CONNECT: These pins may already be connected inside the device. Therefore, they cannot be electrically connected to each other or to any external signal, voltage, or ground. They must however be soldered to the PCB. Failure to follow this guideline may result in device damage. 4 VFB Analog Feedback pin for external voltage divider network. 5 AGND Analog Analog ground. This is the quiet ground for the internal control circuitry, and the ground return for external feedback voltage divider 6, 7 VOUT Power Regulated Output Voltage. Refer to application section for proper layout and decoupling. 10 ENABLE Analog Output Enable. Enable = logic high; Disable = logic low 11 AVIN Power Input power supply for the controller circuitry. Connect to VIN at a quiet point. 12 PVIN Power Input Voltage for the MOSFET switches. ABSOLUTE MAXIMUM RATINGS CAUTION: Absolute Maximum ratings are stress ratings only. Functional operation beyond the recommended operating conditions is not implied. Stress beyond the absolute maximum ratings may impair device life. Exposure to absolute maximum rated conditions for extended periods may affect device reliability. Absolute Maximum Pin Ratings PARAMETER SYMBOL MIN MAX UNITS Supply Voltage PVIN, AVIN, VOUT -0.3 6.0 V Voltages on: ENABLE -0.3 VIN+ 0.3 V Voltages on: VFB -0.3 2.7 V MAX UNITS +150 °C +150 °C +260 °C Absolute Maximum Thermal Ratings PARAMETER CONDITION MIN Maximum Operating Junction Temperature TJ-ABS Storage Temperature Range TSTG Reflow Peak Body Temperature (10 Sec) MSL3 JEDEC J-STD-020A -65 Page 3 05721 January 9, 2019 Rev E Datasheet | Intel® Enpirion® Power Solutions: EP5348UI Absolute Maximum ESD Ratings PARAMETER CONDITION MIN MAX UNITS HBM (Human Body Model) ±2000 V CDM (Charged Device Model) ±500 V RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL MIN MAX UNITS Input Voltage Range VIN 2.4 5.5 V Output Voltage Range VOUT 0.6 VIN – VDO (1) V Operating Ambient Temperature TA -40 +85 °C Operating Junction Temperature TJ -40 +125 °C THERMAL CHARACTERISTICS PARAMETER SYMBOL TYPICAL UNITS Thermal Shutdown TSD 155 °C Thermal Shutdown Hysteresis TSDHYS 15 °C Thermal Resistance: Junction to Ambient (0 LFM) (2) θJA 105 °C/W (1) VDO (dropout voltage) is defined as (ILOAD x Droput Resistance). Please refer to Electrical Characteristics Table. (2) Based on 2 oz. external copper layers and proper thermal design in line with EIA/JEDEC JESD51-7 standard for high effective thermal conductivity boards. ELECTRICAL CHARACTERISTICS NOTE: TA = -40°C to +85°C unless otherwise noted. Typical values are at TA = 25°C, VIN = 3.6V. CIN = 2.2µF 0603 MLCC, COUT = 10µF 0603. PARAMETER SYMBOL TEST CONDITIONS Operating Input Voltage VIN Range MIN TYP 2.5 MAX UNITS 5.5 V Under Voltage Lock-out VUVLO_R – VIN Rising 2.3 V Under Voltage Lock-out VUVLO_F – VIN Falling 2.2 V 3 µA Shut-down Current ISD Enable = Low Page 4 05721 January 9, 2019 Rev E Datasheet | Intel® Enpirion® Power Solutions: EP5348UI PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS 0.588 0.600 0.612 V 500 mΩ TA = 25°C, VIN = 3.6V; VFB Voltage Initial Accuracy VFB Drop Out Resistance RDO Input to Output Resistance in 100% duty cycle operation. 350 Line Regulation ∆VOUT_LINE 2.5V ≤ VIN ≤ 5.5V 0.03 %/V Load Regulation ∆VOUT_LOAD 0A ≤ ILOAD ≤ 400mA 0.48 %/A Temperature Variation ∆VOUT_TEMPL -40°C ≤ TA ≤ +85°C 24 ppm/°C Feedback Current (3) IFB