R1215D Datasheet, PDF (7/22 Pages) RICOH electronics devices division – STEP-UP DC/DC CONTOLLER

R1215D
• R1215D002F
Topt=25°C
Symbol
Item
Conditions
VIN
Operating Input Voltage
VFB
VFB Voltage Tolerance
VIN=2.5V
∆VFB/∆VIN VFB Voltage Line Regulation VIN: from 1.8V to 5.5V
∆VFB/∆Topt
VFB Voltage Temperature
Coefficient
−40°C ^<= Topt ^<= 85°C
IFB
VFB Input Current
VIN=5.5V, VFB=0V or 5.5V
AV
Open Loop Voltage Gain
VIN=2.5V
fT
Unity Gain Frequency Band VIN=2.5V, AV=0
fosc
Oscillator Frequency
VIN=2.5V, VDLY=VFB=0V
∆fosc/∆VIN
Oscillator Frequency Line
Regulation
VIN: from 1.8V to 5.5V
∆fosc/∆Topt
Oscillator Frequency
Temperature Coefficient
−40°C ^<= Topt ^<= 85°C
IDD1
Supply Current 1
VIN=5.5V, VDLY=VFB=0V
VREFOUT
VREFOUT Voltage
VIN=2.5V,IROUT=1mA
IOUT
VREFOUT Maximum Output
Current
VIN=2.5V
∆VREFOUT/
∆VIN
VREFOUT Line Regulation
VIN: from 1.8V to 5.5V
∆VREFOUT/
∆IROUT
VREFOUT Load Regulation
VIN=2.5V,
IROUT: from 0.1mA to 5.0mA
ILIM
VREFOUT Short Current Limit
VIN=2.5V, VREFOUT=0V
∆VREFOUT/
∆Topt
VREFOUT Voltage Temperature
Coefficient
−40°C ^<= Topt ^<= 85°C
REXTH
EXT "H" ON Resistance
VIN=2.5V, IEXT=−50mA
REXTL
EXT "L" ON Resistance
VIN=2.5V, IEXT=50mA
tr
EXT Rising Time
VIN=2.5V, CEXT=1000pF
tf
EXT Falling Time
VIN=2.5V, CEXT=1000pF
IDLY1
DELAY Pin Charge Current VIN=2.5V, VDLY=VFB=0V
IDLY2
DELAY Pin Discharge Current VIN=VFB=1.8V, VDLY=0.1V
VDLY
DELAY Pin Detector Threshold VIN=2.5V, VFB=0V, VDLY=0V to 2V
VUVLO1 UVLO Detector Threshold
VIN=2.5V to 0V, VDLY=VFB=0V
VUVLO2
VHYS
UVLO Released Voltage
UVLO Hysteresis Range
VIN=0V to 2.5V, VDLY=VFB=0V
VDTC0
Duty=0% DTC Pin Voltage
VIN=2.5V
VDTC20
Duty=20% DTC Pin Voltage VIN=2.5V
VDTC80
Duty=80% DTC Pin Voltage VIN=2.5V
VDTC100 Duty=100% DTC Pin Voltage VIN=2.5V
IAMPH
AMP "H" Output Current
VIN=2.5V, VAMP=1.0V, VFB=0.9V
IAMPL
AMP "L" Output Current
VIN=2.5V, VAMP=1.0V, VFB=1.1V
Min.
1.8
0.985
−0.1
1.190
1.280
10
3.0
0.08
0.95
1.50
1.56
0.03
0.28
0.92
1.6
40
Typ.
1.000
3
±150
0
100
1.0
1.400
100
±0.6
900
1.300
5
6
15
±150
2.8
1.8
12
8
6.0
0.18
1.00
1.60
1.67
0.07
0.38
0.47
0.93
1.02
3.2
85
Max. Unit
5.5 V
1.015 V
mV
ppm/
°C
0.1 µA
dB
MHz
1.610 MHz
KHz
KHz/
°C
1800 µA
1.320 V
mA
10 mV
20 mV
6.0
4.0
8.5
0.36
1.05
1.70
1.78
0.11
0.48
1.12
5.8
130
mA
ppm/
°C
Ω
Ω
ns
ns
µA
mA
V
V
V
V
V
V
V
V
mA
µA
7