R1211D002B RICOH [RICOH electronics devices division], R1211D002B Datasheet - Page 2

• Manufacturer Part Number: R1211D002B
• Description: STEP-UP DC/DC CONTROLLER
• Manufacturer: RICOH [RICOH electronics devices division]

2
BLOCK DIAGRAMS
SELECTION GUIDE
selected at the user's request.
R1211x
AMPOUT
In the R1211x Series, the oscillator frequency, the optional function, and the package type for the ICs can be
The selection can be made with designating the part number as shown below;
V
FB
Vref
Code
a
b
-
+
OSC
DTC
Version A/C
UVLO
+
-
R1211x002x-TR
+
-
-
-
Latch
↑
Designation of Package Type:
D: SON-6
N: SOT23-6W
Designation of Optional Function
A : 700kHz, with AMPOUT pin (External Phase Compensation Type)
B : 700kHz, with CE pin (Internal Phase Compensation Type, with Stand-by)
C : 300kHz, with AMPOUT pin (External Phase Compensation Type)
D : 300kHz, with CE pin (Internal Phase Compensation Type, with Stand-by)
a
+
↑
b
-
←Part Number
EXT
V
GND
DELAY
IN
V
CE
FB
Enable
Chip
Vref
Contents
OSC
-
+
DTC
UVLO
+
-
Version B/D
+
-
-
-
Latch
+
-
EXT
V
GND
DELAY
IN