R1212D002A RICOH [RICOH electronics devices division], R1212D002A Datasheet - Page 2

• Manufacturer Part Number: R1212D002A
• Description: STEP-UP DC/DC CONTOLLER
• Manufacturer: RICOH [RICOH electronics devices division]

2
BLOCK DIAGRAM
SELECTION GUIDE
maximum duty cycle can be selected at the user's request.
R1212D
In the R1212D Series, the oscillator frequency, UVLO detector threshold, and with/without internal limit of
The selection can be made with designating the part number as shown below;
Code
a
b
V
A
1C
2C
0A
0B
1A
2A
R1212D10xx-TR-x
REFOUT
DTC
MPOUT
V
FB
Oscillator Frequency
Typ. 700kHz
Typ. 1.4MHz
Typ. 700kHz
Typ. 300kHz
Typ. 700kHz
Typ. 300kHz
Designation of composition of pin plating
-F: Lead free plating
V
Internal VR
REF
↑
a
Er.Amp
b
↑
←Part Number
PWM Comp
UVLO Detector Threshold
Typ. 1.9V
Typ. 1.9V
Typ. 2.1V
Typ. 2.1V
Typ. 2.8V
Typ. 2.8V
Oscillator
V
REFOUT
Contents
D
ELAY
UVLC
Latch
Internal Maximum Duty Limit
No
No
Typ. 90%
Typ. 91.5%
Typ. 90%
Typ. 91.5%
V
EXT
GND
IN