R1211X Datasheet, PDF (14/33 Pages) RICOH electronics devices division – Step-up DC/DC Controller

s TEST CIRCUITS
q R1211X002A/R1211X002C
*Oscillator Frequency, Maximum Duty Cycle, VFB Voltage Test *Consumption Current Test
3.3V
6V
VIN EXT
OSCILLOSCOPE
VF B
GND DELAY
A
VIN
VF B
GND DELAY
*EXT “H” ON Resistance
3.3V
VIN ^EXT
V FB
GNDDELAY
OSCILLOSCOPE
150Ω
*DELAY Pin Charge Current
3.3V
VIN
VFB
GND _DELAY
A
*EXT “L” ON Resistance
3.3V
VIN ^EXT
V_FB
V
GND_DELAY
150Ω
*DELAY PIn Discharge Current
2.5V
VIN
VFB
GND DELAY
A
0.1V
Rev. 1.10
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