www.recom-power.com
REV.: 0/2017
PA-1
Evaluation Module
R-78S3.3-0.1 Evaluation Module
Description
The R-78S3.3-0.1 Evaluation Module generates 3.3V from a single AA battery or from an external source. By
using the external input source, any voltage source (other types of batteries, energy harvesters, etc.) in the range
from 0.65V to 3.15V can be used. The evaluation module contains an AA battery holder, power switch,
R-78S3.3-0.1 boost converter and a micro-USB connector. Jumper headers are provided to allow various test
measurements to be made. An enable pin puts the R-78S into sleep mode where it draws only 7uA from the
battery.
Part
Number
Input
Voltage Range
Output
Max. Output
Voltage Current
Efficiency
(1)
Max. Capacitive
@ min. Vin
@ max. Vin
Load
(2)
[VDC]
[VDC]
[mA]
[%]
[%]
[µF]
R-78S3.3-0.1
0.65-3.15
3.3
100
92
93
470
Notes:
Note1: Efficiency is tested at 1.5V input voltage and full load.
Note2: Max. capacitive load is tested at nominal input and full resistive load.
Specifications
(measured @ ta= 25°C, 1.5Vin , full load after warm up unless otherwise stated)
BASIC CHARACTERISTICS
Parameter
Condition
Min.
Typ.
Max.
Under Voltage Lockout
DC-DC OFF
0.4VDC
Overload Capability
(3)
peak duty cycle 10%
150%, 10s
Quiescent Current
160µA
Start-up time
2ms
Rise Time
800µs
Internal Operating Frequency
1200kHz
Minimum Load
0%
Dropout Voltage
150mV
Output Ripple and Noise
20MHz BW
100mVp-p
ON/OFF CTRL
DC-DC ON
DC-DC OFF
Open or 0.7V
≤
V
CTRL
<Vin
Short to GND or V
CTRL
<0.1V
Input current of CTRL pin
5µA
Standby Current
7µA
Notes:
Note 3: For more information, please refer to “Overload Capability Graph” in the R-78S datasheet.
Features
Evaluation
Module
•
3.3V from a single AA battery (boost converter or
from an external source
•
Efficiency 93% , >80% at 10% load
•
Input range down to 0.65V
•
Input and output current measurement capability
•
Micro-USB type B or 0.100” (2.54mm) pin output
R-78S3.3-0.1-EVM-1
Caution:
ESD sensitive. Always follow ESD preventative procedures when
handling the product
!
