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參數(shù)資料
| 型號： | R5220K022A-TR |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.8 A SWITCHING REGULATOR, 1440 kHz SWITCHING FREQ-MAX, DSO6 |
| 封裝： | 2.50 X 1.40 MM, PLP-25 |
| 文件頁數(shù)： | 21/25頁 |
| 文件大小： | 521K |
| 代理商： | R5220K022A-TR |
R5220x
5
R5220xxxxB
Topt
=25°C
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit
VIN
Operating Input Voltage
2.8
5.5
V
ISS1
Supply Current 1
(Standby mode)
VIN
=VOUT1+1.0V, VCE=GND, VMODE=GND or VIN
VOUT1:DC/DC Set VOUT
0.1
1.0
A
ISS2
Supply Current 2
(Power Save mode)
VIN
=VCE=VMODE=VOUT2+1.0V,
VOUT2:VR Set VOUT, IOUT
=0mA
5
10
A
ISS3
Supply Current 3
VIN
=VCE=3.6V, VMODE=GND
350
450
A
DC/DC Part
Topt
=25°C
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit
VOUT1 >
= 1.5
×0.98
×1.02
VOUT1
Output Voltage
VIN
=3.6V
IOUT
=50mA
VOUT1<1.5
0.03
+0.03
V
fosc
Oscillator Frequency
VIN
=VSET1+1.5V
0.96
1.20
1.44
MHz
VOUT1<1.5
0.15
0.30
TSTART
Soft-start Time
VIN
=3.6V
VOUT1 >
= 1.5
0.20
0.35
ms
RONP
ON Resistance of Pch Transistor
VIN
=3.6V, ILX=100mA
0.5
RONN
ON Resistance of Nch Transistor
VIN
=3.6V, ILX=100mA
0.5
ILXLEAK
Lx Leakage Current
VIN
=5.5V, VCE=0V, LX=5.5V/0V
1.0
A
VOUT/
Topt
Output Voltage
Temperature Coefficient
40°C <
= Topt <
= 85°C
±150
ppm/
°C
Maxduty Oscillator Maximum Duty Cycle
VOUT
=0V
100
%
ILXlim
Lx Current Limit
VIN
=3.6V
500
800
mA
Tprot
Protection Delay Circuit
VIN
=3.6V
1.0
3.0
7.0
ms
VUVLO1
UVLO Threshold Voltage
VCE
=VIN, VMODE=GND, VOUT=0V
2.00
2.35
2.75
V
VUVLO2
UVLO Released Voltage
VCE
=VIN, VMODE=GND, VOUT=0V
2.05
2.45
2.80
V
VMODEH
MODE "H" Input Voltage
1.0
V
VMODEL
MODE "L" Input Voltage
0
0.3
V
VR Part
Topt
=25°C
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit
VOUT2 >
= 1.5
×0.98
×1.02
VOUT2
Output Voltage
VIN
=VOUT2+1.0V
IOUT
=10mA
VOUT2<1.5
0.03
+0.03
V
IOUT
Output Current
VIN
=VOUT2+1.0V
50
mA
VOUT2<2.3
15
40
2.3 <
= VOUT2<3.0
25
50
VOUT2/
IOUT
Load Regulation
VIN
=VOUT2+1.0V
10
A <
= IOUT <
= 25mA
VOUT2 >
= 3.0
35
65
mV
VOUT2<1.8V
0.7
VDIF
Dropout Voltage
IOUT
=50mA
VOUT2 >
= 1.8V
0.3
V
2.8V <
= VIN <
= 5.5V
IOUT
=25mA
VOUT2<2.3V
VOUT2/
VIN
Line Regulation
VOUT2
+0.5V <
= VIN <
= 5.5V
IOUT
=25mA
VOUT2 >
= 2.3V
0.2
%/V
RR
Ripple Rejection
Refer to Typical Characteristics
dB
VOUT/
Topt
Output Voltage
Temperature Coefficient
IOUT
=30mA,
40°C <
= Topt <
= 85°C
±100
ppm/
°C
Ilim
Short Current Limit
VOUT
=0V
60
mA
IPDC
CE pull-down current
0.12
0.40
0.70
A
VCEH
CE "H" Input Voltage
1.0
V
VCEL
CE "L" Input Voltage
0
0.3
V
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