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參數(shù)資料
| 型號： | R1285L591A |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, DSO12 |
| 封裝： | 2.70 X 3 MM, DFN-12 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 241K |
| 代理商： | R1285L591A |
R1285L
6
ELECTRICAL CHARACTERISTICS
(Ta=25C)
Symbol
Item
Conditions
MIN.
TYP.
MAX.
Unit.
VCC
Operating Input Voltage
2.3
4.8
V
ICC1
VCC Consumption Current
(switching)
VCC=4.8V
4.0
mA
ICC2
VCC Consumption Current
(at no switching)
VCC=4.8V
350
uA
ISTB
Standby Current
VCC=4.8V
0.1
3
uA
VUVLO1
UVLO Detect Voltage
Falling
1.95
2.05
2.15
V
VUVLO2
UVLO Released Voltage
Rising
VUVLO1
+0.10
2.28
V
FOSC
Oscillator Frequency
VCC=3.7V
1200
1400
1600
kHz
TDLY
Delay Time for Protection
VCC=3.7V
50
ms
VCEL
CE “L” Input Voltage
VCC=2.3V
0.3
V
VCEH
CE “H” Input Voltage
VCC=4.8V
1.5
V
RCE
CE pin Pulldown Resistance VCC=3.7V
600
k
Ω
■Boost DC/DC
VOUTP
VOUTP Voltage Tolerance
VCC=3.7V
x0.985
x1.015
V
VOUTP
/T
VOUTP Voltage
Temperature Coefficient
VCC=3.7V , -40C <
= Ta <
= 85C
±
150
ppm
/C
VOUTP
/Vcc
VOUTP Voltage
Line Regulation
2.9V <
= VCC <
= 3.4
±
4
mV
VOUTP
/IOUT
VOUTP Voltage
Load Regulation
VCC=3.7V , 10mA <
= IOUT <
= 100mA
±
10
mV
VOUTP_TR
VOUTP Voltage
Line Transient Response VCC=2.9V 3.4V , TR=TF=50us
±
10
mV
Maxduty1 CH1 Max. Duty Cycle
VCC=3.7V
78
85
%
TSS1
CH1 Soft-Start Time
VCC=3.7V
4.5
ms
RLXP1
LXP1 ON Resistance
VCC=3.7V
300
m
Ω
IOFF LXP1
LXP1 Leakage Current
VCC=4.8V , VLXP1=0V
5
uA
RLXP2
LXP2 ON Resistance
VCC=3.7V
300
m
Ω
IOFF LXP2
LXP2 Leakage Current
VCC=4.8V , VLXP2=5V
5
uA
ILIMLXP2
LXP2 Current Limit
VCC=3.7V
0.7
1.0
A
IVOUTP
VOUTP Discharge Current
VCC=3.7V , VOUTP=0.1V
10
mA
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