R-78S Datasheet, PDF (1/5 Pages) Recom International Power – Boost Converter

Features
Switching
Regulator
• Boost Converter
• Efficency 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
• EN62368-1 + AM2 (pending)
DC/DC Converter
R-78S
Description
The R-78S is a DC/DC boost converter designed to run from single cell batteries. The input voltage
range of 0.65V-3.15V means that alkaline, NiCd, NiMH, zinc-carbon or lithium chemistry cells can be
used to generate a stable 3.3V 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.
0.1 Amp
SIP4
3^{3 YEAR}
warranty
Single Output
Selection Guide
Part
Number
R-78S3.3-0.1
Input
Voltage Range
[VDC]
0.65-3.15
Output
Voltage
[VDC]
3.3
Max. Output Efficiency ⁽¹⁾
Current @ min Vin @ max. Vin
[mA]
[%] [%]
100
92 93
Max. Capacitive
Load ⁽²⁾
[µF]
100
Notes:
Note1: Efficiency is tested by 1.5V input voltage and full load.
Note2: Max. Cap Load is tested by nominal input and full resisitive load.
Specifications (measured @ ta= 25°C, 1.5Vin , full load after warm up unless otherwise stated)
BASIC CHARACTERISTICS
Parameter
Minimum Start-up Voltage
Input Voltage Range
No Load Power Consumption
Under Voltage Lockout
Quiescent Current
Start-up time
Rise Time
Internal Operating Frequency
Minimum Load
Dropout Voltage
Output Ripple and Noise
ON/OFF CTRL
Standby Current
Condition
40mA (continuous)
100mA
DC-DC OFF
20MHz BW
DC-DC ON
DC-DC OFF
Min.
Typ.
Max.
0.8VDC
0.65VDC
1.5VDC
3.15VDC
240µW
0.4VDC
160µA
2ms
800µs
1200kHz
0%
150mV
100mVp-p
Open or 0.7V ≤ VCTRL<Vin
Short to GND or VCTRL<0.1V
7µA
continued on next page
EN62368-1 (pending)
EN55022 compliant
www.recom-power.com
REV.: 0/2017
I-1