REV.: 2/2020
P-2
Evaluation Module
Specifications
(measured @ ta= 25°C, 1.5Vin, full load after warm up unless otherwise stated)
R-78S3.3-0.1-EVM-1
Overload Capability Graph
Quick Start Guide
Component Placement
Maximum Output Curr
ent [mA]
Input Voltage [V]
0.65
0
20
40
60
80
100
120
150
140
1.3
1.85
1.2
1.8
3.15
2.4
peak current
continuous current
• Insert the AA battery into the battery holder (only one way possible).
• If powering USB-powered demonstrators: plug in the micro-USB cable.
• Turn on and off using the slide switch.
Note: to reduce the power consumption, no indicator LED is fitted. Remember to switch off to conserve the battery.
• The output voltage is accessed via J7 or the USB port.
• To measure the input and output current of the R-78S, remove the jumpers on J4 and J5. J4 and J5 are standard 0.100” (2.54mm) pin headers to allow
current measurement device connections (ampere meter, scope probe).
• When an external voltage source (no on-board battery) is used on J3, change the jumper position on J1 to pin 1 and pin 2 (VEXT).
• When the on-board AA battery is used, change the jumper position on J1 to pin 2 and pin 3 (VBAT).
• To set the R-78S into sleep mode, apply the provided jumper on both pins of J6 (CTRL to GND).
J3
J1
VEXT
VEXT VBAT
OFF
ON
I_IN
I_OUT
VBAT
GND
GND CTRL
VOUT GND
D-
D+
GND
J4
J6
J7
J5
J8
CON1
FOR EVALUATION ONLY
R-78SXX-0.1-EVM-1
S1
U1
J2
BAT1
