BD8306MUV-E2 ROHM

Datasheet 1.8V to 5.5V, Integrated 2.0A MOSFET 1ch Buck-Boost Converter BD8306MUV General Description Key Specifications ROHMs highly-efficient buck-boost converter Input Voltage Range: +1.8V to +5.5V BD8306MUV produces buck-boost output voltage Output Voltage Range: +1.8V to +5.2V including 3.3 V from two-cell or three-cell alkaline Output Current: battery, or one-cell lithium-ion battery with just one (at 3.3V Output, +2.8V to +5.5V Input) 1.0A inductor. This IC adopts the original buck-boost drive (at 5.0V Output, +2.8V to +5.5V Input) 0.7A system and creates a more efficient power supply than Pch FET ON-Resistance: 120m(Typ) the conventional SEPIC-system or H-bridge system Nch FET ON-Resistance: 100m(Typ) switching regulators. Standby Current: 0A (Typ) Operating Temperature Range: -40C to +85C Features Package W (Typ) x D (Typ) x H (Max) Highly-Efficient Buck-Boost DC/DC Converter Constructed with just one Inductor. Maximum output current changes depending on the input and output voltages. Input current for PVCC terminal should be less than 2.0A including the DC current and ripple current of the inductor. Please refer to Figure 25 and Figure 34 for details about the maximum output current at 3.3V and 5.0V output. Incorporates a Soft-Start Function. Incorporates a Timer Latch System with Short Protection Function. VQFN016V3030 Application 3.00mm x 3.00mm x 1.00mm General Portable Equipment DSC DVC Cellular Phone PDA LED Typical Application Circuit 2.8V to 5.5V, Output: 3.3V / 1.0 A, Frequency 1MHz 10F (ceramic) 10uF(ceramic) murata murata GRM31CB11A106KA01 2.8V 2t.o8 55.5.5VV 12 11 10 9 4.7H 4.7uH 13 8 TOKO DE3518C RVCC RVCC PVCC PGND 0 0 VCC LXLx2 2 14 7 LX2 ON/OFF 15 STB Lx2 6 10F (ceramic) 10uF(ceramic) mmurataurata GRM31CB11A106KA01 VOUT RT 16 5 3.3V/1.0A RRT RRT 39k 39k 1 2 3 4 CVCC CCCC CVCC 1uF 120pF120pF 1F CCFFB B RINV1 2200pF RINV1 RRCC 2200pF 5656kk 4.7k 4.7k RINV2 RRF B 4.47.7kk RINV2 FB 1010kk Product structureSilicon monolithic integrated circuit This product has no designed protection against radioactive rays .w ww.rohm.com TSZ02201-0Q3Q0NZ00340-1-2 2014 ROHM Co., Ltd. All rights reserved. 1/25 TSZ2211114001 10.Aug.2016 Rev.003 FB PVCC INV Lx1 LX1 GND Lx1 LX1 PGND VOUTVOUT PGND GND LX1 INV LX1 FB PVCC BD8306MUV Pin Configuration (TOP VIEW) 12 11 10 9 13 8 PVCC PGND 7 14 LX2 VCC 6 LX2 STB 15 RT 5VOUT 16 1 2 3 4 Pin Descriptions Pin No. Pin Name Function 1 FB Output pin of error amp 2 INV Input pin of error amp 3 GND Ground pin 4 to 5 VOUT Output voltage pin 6 to 7 LX2 Output side pin for inductor 8 to 9 PGND Ground pin for POW-MOS 10 to 11 LX1 Input side pin for inductor 12 to 13 PVCC Voltage supply pin for DC/DC converter 14 VCC Voltage supply pin for control block 15 STB ON/OFF pin 16 RT Pin for configuration of frequency Block Diagram STB RT VCC PVCC GND TIMING LX1 CONTOL FB TIMING CONTOL PGND INV VOUT LX2 www.rohm.com TSZ02201-0Q3Q0NZ00340-1-2 2014 ROHM Co., Ltd. All rights reserved. 2/25 TSZ2211115001 10.Aug.2016 Rev.003