R-78S1.8-0.1

Features • Boost converter • Efficiency 93% , >80% with 10% load • Input range down to 0.65V • Continuous short circuit protection • 7µA input current in standby • -40°C to +100°C operation • IEC/EN62368-1 certified, CB report Switching Regulator DC/DC Converter R-78S Description 0.1 Amp 3 SIP4 Single Output 3Y The R-78S is a DC/DC boost converter designed to run from single cell batteries. The input voltage range of 0.65V-3.3V means that alkaline, NiCd, NiMH, zinc-carbon or lithium chemistry cells can be used to generate a stable 1.8V, 3.3V or 3.6V output to power microprocessors, WLAN/Bluetooth modules and IoT systems. The very high efficiency and low standby consumption can be used to extend battery lifetimes until the „last gasp“ to get the maximum available energy out of the cell. The wide operating temperature of -40°C to +100°C, short circuit protection, OTP, Class A EMC and 3-year warranty round off this high performance converter. wa EAR rranty Selection Guide Part Input Output Output Efficiency (1) Max. Capacitive Number Voltage Range (3) Voltage Current @ min Vin @ typ. Vin Load (2) [VDC] [VDC] [mA] [%] [%] [µF] R-78S1.8-0.1 0.65-1.3 1.8 100 92 93 470 R-78S3.3-0.1 0.65-3.15 3.3 100 92 93 470 R-78S3.6-0.1 0.65-3.3 3.6 100 92 93 470 Notes: Note1: Efficiency is tested at nom. input voltage and full load. (refer to Basic characterisitc below) Note2: Max. Cap Load is tested by nominal input and full resistive load Note3: For more information, please refer to “Output Current vs. Input Voltage Graph” on page I-2 IEC/EN62368-1 certified CB Report EN55022 Compliant Model Numbering R-78S-__-0.1 Output Voltage Output Current Specifications (measured @ ta= 25°C, 1.5Vin , full load after warm up unless otherwise stated) BASIC CHARACTERISTICS Parameter Input Voltage Under Voltage Lockout Overload Capability (4) Quiescent Current Start-up time Rise time Condition R-78S1.8-0.1 1.2VDC R-78S3.3-0.1 nom. Vin= 1.5VDC R-78S3.6-0.1 1.5VDC DC-DC OFF Min. 0.65VDC Typ. Max. 1.2VDC 1.5VDC 1.5VDC 0.4VDC 1.3VDC 3.15VDC 3.3VDC peak duty cycle 10% 150%, 10s Vout=1.8VDC 100µA Vout=3.3VDC 160µA Vout=3.6VDC 180µA Vout=1.8VDC, use E-cap 330µF 4ms Vout=3.3VDC and 3.6VDC 2ms Vout=1.8VDC, use E-cap 330µF 3.5ms Vout=3.3VDC and 3.6VDC 800µs 1200kHz Internal Operating Frequency Notes: Note4: For more information, please refer to “Overload Capability Graph” on page I-2 continued on next page www.recom-power.com REV.: 3/2017 I-1 R-78S DC/DC Converter Series Specifications (measured @ ta= 25°C, 1.5Vin , full load after warm up unless otherwise stated) Parameter Condition Min. Typ. Minimum Load 0% Dropout Voltage Output Ripple and Noise Vout= 1.8VDC 500mV Vout= 3.3VDC 150mV Vout= 3.6VDC 300mV 20MHz BW, 10%-100% load 100mVp-p Open or 0.7V ≤ VCTRL