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參數(shù)資料
| 型號： | R1232D251B-TR-F |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.5 A SWITCHING REGULATOR, 2580 kHz SWITCHING FREQ-MAX, DSO8 |
| 封裝： | 0.90 MM HEIGHT, LEAD FREE, SON-8 |
| 文件頁數(shù)： | 20/24頁 |
| 文件大?。?/td> | 847K |
| 代理商： | R1232D251B-TR-F |
R1232D
5
ELECTRICAL CHARACTERISTICS
R1232DxxxA/C
Topt
=25°C
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit
VIN
Operating Input Voltage
2.6
5.5
V
VOUT
Step-down Output Voltage
VIN
=VCE=5.0V, IOUT=10mA
×0.980
×1.020
V
VFB
Feedback Voltage
VIN
=VCE=5.0V, IOUT=10mA
0.784
0.800
0.816
V
VOUT/Topt
Step-down Output Voltage
Temperature Coefficient
40°C <
= Topt <
= 85°C
±150
ppm/
°C
fosc
Oscillator Frequency
VIN
=VCE =VSET +1.5V
0.75
1.00
1.25
MHz
IDD
Supply Current
VIN
=VCE =5.5V, VOUT=5.5V
70
140
190
A
Istandby
Standby Current
VCE
=VOUT=0V, VIN= 5.5V
0.0
5.0
A
ILXleak
LX Leakage Current
VIN
=5.5V,VCE=0V
VLX
=0V/5.5V
5.0
0.0
5.0
A
RONP
ON Resistance of Pch Transistor VIN
=5.0V, ILX=200mA
0.20
0.35
RONN
ON Resistance of Nch Transistor VIN
=5.0V, ILX=200mA
0.20
0.35
Maxduty
Oscillator Maximum Duty Cycle
100
%
tstart
Soft-start Time
VIN
=VCE =5.0V, at no load
0.5
1.0
1.4
ms
tprot
Protection Delay Time
VIN
=VCE =5.0V
0.1
2.0
10.0
ms
ILXlimit
Lx Current Limit
VIN
=VCE =5.0V
1.0
1.4
A
VUVLO1
UVLO Detector Threshold
VIN
=VCE =2.6V-> 1.5V
2.10
2.25
2.40
V
VUVLO2
UVLO Released Voltage
VIN
=VCE =1.5V-> 2.6V
2.20
VUVLO1
+0.10
2.50
V
ICE
CE Input Current
VIN
=5.5V, VCE =5.5V/0V
0.1
0.0
0.1
A
IVOUT
VOUT Leakage Current
VIN
=5.5V, VCE =0V,
VOUT
=5.5V/0V
0.1
0.0
0.1
A
VCEH
CE "H" Input Voltage
VIN
=5.5V
1.5
V
VCEL
CE "L" Input Voltage
VIN
=3.0V
0.3
V
VTESTL
TEST pin "L" Input Voltage
VIN
=3.0V
0.3
V
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