R1211D002A-TR RICOH [RICOH electronics devices division], R1211D002A-TR Datasheet - Page 15

• Manufacturer Part Number: R1211D002A-TR
• Description: Step-up DC/DC Controller
• Manufacturer: RICOH [RICOH electronics devices division]

*DELAY Pin Detector Threshold Voltage Test
*UVLO Detector Threshold/Hysteresis Range Test
*Soft-start Time Test
<Components>
Inductor (L)
Diode (SD)
Capacitors
NMOS Transistor : IRF7601 (International Rectifier)
Resistors
Rev. 1.10
C 5
3.3V
V
GND
C3
IN
V
GND
V
DELAY
IN
EXT
FB
DELAY
EXT
V
: 22 H (TDK LDR655312T-220)
: CRS02 (Toshiba)
C1: 680pF(Ceramic), C2: 22 F (Tantalum)+2.2 F (Ceramic),
C3: 68 F (Tantalum)+2.2 F (Ceramic), C4: 2200pF(Ceramic), C5: 22 F(Tantalum)
: R1: 90k , R2:10k , R3:30k , R4:30k , Rout:1k /330
GND
FB
VIN
OS
OSC C C C ILLOSC
OS
OS
Coil
OS
OSC C C C ILLOSC
AM POU T
OS
OS
V FB
ILLOSC O O O O PE
ILLOSC
ILLOSC
EXT
DELA Y
ILLOSC
ILLOSC
ILLOSC O O O O PE
PE
PE
PE
C4
PE
PE
PE
R4
NM OS
- 15 -
Diode
R3
*AMP “H” Output Current/”L” Output Current Test
3.3V
C1
V
AMPOUT
GND
IN
V
DELAY
FB
R1
R2
C2
V
A
OUT
1V
Rout
OS
OS
OS
OSC C C C ILLOSC
ILLOSC
ILLOSCOPE
ILLOSC
OPE
OPE
OPE