参数资料
型号: BU18TA2WNVX
元件分类: 固定正电压单路输出LDO稳压器
英文描述: 1.8 V FIXED POSITIVE LDO REGULATOR, PDSO4
封装: 1.20 X 1.60 MM, 0.60 MM HEIGHT, ROHS COMPLIANT, SSON-4
文件页数: 23/30页
文件大小: 1661K
代理商: BU18TA2WNVX
Technical Note
3/29
BUTA2WNVX series, BUTA2WHFV series
www.rohm.com
2011.01 - Rev.C
2011 ROHM Co., Ltd. All rights reserved.
Electrical characteristics
(Unless otherwise specified Ta=25℃, VIN=VOUT+1.0 V (VIN=3.5 V on VOUT=1.8-V and1.5-V products)
,
STBY=1.5 V, CIN=1.0 F, CO=1.0 F)
Parameter
Symbol
Limits
Unit
Conditions
Min.
Typ.
Max.
Output voltage
VOUT
×0.99
VOUT
×1.01
V
IOUT=10 μA, VOUT≥2.5 V
VOUT
-25 mV
VOUT
+25 mV
IOUT=10 μA, VOUT<2.5 V
Circuit current
IIN
-
40
95
μA
IOUT=0mA
Circuit current (at STBY)
ISTBY
-
1
μA
STBY=0 V
Ripple rejection
RR
55
70
-
dB
VRR=-20 dBv, fRR=1 kHz,
IOUT=10 mA, 1.5 V≤VOUT≤1.8 V
65
VRR=-20 dBv,fRR=1 kHz,
IOUT=10 mA, 2.5 V≤VOUT
Input/Output voltage difference
VSAT
-
400
800
mV
2.5 V≤VOUT≤2.6 V
(VIN=0.98*VOUT, IOUT=200 mA)
-
360
720
mV
2.7 V≤VOUT≤2.85 V
(VIN=0.98*VOUT, IOUT=200 mA)
-
330
660
mV
2.9 V≤VOUT≤3.1 V
(VIN=0.98*VOUT,IOUT=200 mA)
-
300
600
mV
3.2 V≤VOUT≤3.4 V
(VIN=0.98*VOUT, IOUT=200 mA)
Line regulation
VDL
-
2
20
mV
VIN=VOUT+1.0 V to 5.5 V,
IOUT=10 μA
Load regulation
VDLO
-
10
80
mV
IOUT=0.01 mA to 100 mA
Overcurrent protection detection
current
ILMAX
250
400
700
mA
Vo=VOUT*0.8
Output short-circuit current
ISHORT
20
70
150
mA
Vo=0 V
Output discharge resistance
RDSC
20
40
80
VIN=4.0 V, STBY=0 V
Standby pull-down resistance
RSTB
500
1000
2000
k
Standby control
ON
VSTBH
1.5
-
5.5
V
OFF
VSTBL
-0.3
-
0.3
V
* This product does not have radiation-proof design.
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