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R1224N Datasheet, PDF (3/42 Pages) RICOH electronics devices division – PWM/VFM step-down DC/DC Converter
R1224N
SELECTION GUIDE
In the R1224N Series, the output voltage, the oscillator frequency, the optional function, and the taping type for
the ICs can be selected at the user's request.
The selection can be made with designating the part number as shown below;
R1224Nxx2x-xx-x ←Part Number
↑ ↑ ↑↑ ↑ ↑
a b cd e f
Code
a
b
c
d
e
f
Contents
Designation of Package Type;
N: SOT-23-5
Setting Output Voltage (VOUT):
Stepwise setting with a step of 0.1V in the range of 1.2V to 6.0V is possible.
Adjustable type; a=10 means Reference Voltage=1.0V Optional Function is G/H/M.
2: fixed
Designation of Optional Function
E : 300kHz, with a PWM/VFM alternative circuit
F : 500kHz, with a PWM/VFM alternative circuit
G : 300kHz, without a PWM/VFM alternative circuit
H : 500kHz, without a PWM/VFM alternative circuit
L : 180kHz, with a PWM/VFM alternative circuit
M :180kHz, without a PWM/VFM alternative circuit
Designation of Taping Type;
(Refer to Taping Specification)"TR" is prescribed as a standard.
Designation of Composition of pin plating
-F: Lead free plating
3