參數(shù)資料
型號(hào): R1230D121H-TL
廠商: RICOH COMPANY LTD
元件分類: 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, 920 kHz SWITCHING FREQ-MAX, PDSO8
封裝: 0.9 MM HEIGHT, SON-8
文件頁(yè)數(shù): 17/20頁(yè)
文件大?。?/td> 401K
代理商: R1230D121H-TL
Rev. 1.20
- 6 -
q
R1230D001G/H
(Topt=25
°C)
Symbol
Item
Conditions
Min.
Typ.
Max. Unit
VIN
Operating Input Voltage
2.4
5.5
V
VFB
Feedback Voltage
VIN=VCE=VSET+1.5V, VMODE=0V,
IOUT=10mA
0.776
0.800
0.824
V
VFB/
T
Feedback Voltage
Temperature Coefficient
-40
°C ≤ Topt ≤ 85°C
±150
ppm
/
°C
fosc
Oscillator Frequency(xx1G)
VIN=VCE=VSET+1.5V
425
500
575
kHz
fosc
Oscillator Frequency(xx1H)
VIN=VCE=VSET+1.5V
680
800
920
kHz
IDD
Supply Current(xx1G)
VIN=VCE=5.5V, VFB=VMODE=0V
230
300
A
IDD
Supply Current(xx1H)
VIN=VCE=5.5V, VFB=VMODE=0V
250
350
A
Istb
Standby Current
VIN=5.5V, VCE=VFB=0V
0
5
A
RONP
ON Resistance of
Pch Transistor
VIN=5.0V
0.20
0.35
0.60
RONN
ON Resistance of
Nch Transistor
VIN=5.0V
0.20
0.45
0.70
ILXleak Lx Leakage Current
VIN=5.5V, VCE=0V, VLX=0V/5.5V
-0.1
0.0
0.1
A
IVFB
VFB Leakage Current
VIN=5.5V, VCE=0V, VFB=0V/5.5V
-0.1
0.0
0.1
A
ICE
CE Input Current
VIN=5.5V, VMODE=0V, VCE=5.5V/0V
-0.1
0.0
0.1
A
VCEH
CE "H" Input Voltage
VIN=5.5V, VFB=0V
1.5
V
VCEL
CE "L" Input Voltage
VIN=2.4V, VFB=0V
0.3
V
Maxdty Oscillator Maximum Duty Cycle VMODE=0V
100
%
VLX
Lx Limit Voltage
VIN=VCE=3.0V, VMODE=0V, VFB=0V
VIN-0.15
VIN-
0.35
VIN-
0.55
V
Tstart
Delay Time by Soft-Start function at no load, VIN=VCE=VSET+1.5V
0.5
1.5
2.5
ms
Tprot
Delay Time for protection circuit
VIN=VCE=3.6V, VMODE=0V
1.5
ms
VUVLO1 UVLO Threshold Voltage
VIN=VCE=2.5V->1.5V, VFB=0V
1.8
2.1
2.2
V
VUVLO2 UVLO Released Voltage
VIN=VCE=1.5V->2.5V, VFB=0V
1.9
2.2
2.3
V
IMODE MODE Pin Input Current
VIN=5.5V, VMODE=5.5V/0V, VCE=0V
-0.1
0.1
A
VMODE MODE ”H” Input Voltage
VIN=VCE=5.5V, VFB=0V
1.5
V
VMODEL MODE ”L” Input Voltage
VIN=VCE=2.4V, VFB=0V
0.3
V
VFMdty VFM Duty Cycle
VIN=VCE=VMODE=2.4V, VFB=0V
55
65
85
%
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