Absolute Maximum Rating
Parameter
Power Dissipation
Lead Temperature ( Soldering 5 seconds )
Storage Temperature Range
Operating Junction Temperature
Input Supply Voltage
Feedback Input Voltage
Shutdown Input Voltage
Error Comparator Output
B1121
Internally Limited
260 °C
-65 °C to +150 °C
-55 °C to +150 °C
-0.3V to +30V
-1.5V to +30V
-0.3V to +30V
-0.3V to +30V
Electrical Characteristics
(VS = 15V, TA = 25°C , unless otherwise specified)
Parameter
Conditions
3.0V Version
Output Voltage
Reverse Output Current
3.3V Version
Output Voltage
Reverse Output Current
5V Version
Output Voltage
Reverse Output Current
Vin=3.8V IOUT=1mA
V IN ≤4.3V, 1mA ≤IL ≤ 150mA
B1121-3.0 VOUT = 3.0V, VIN = 0V
Vin=3.8V IOUT=1mA
V IN ≤4.3V, 1mA ≤IL ≤ 150mA
B1121-3.3 VOUT = 3.3V, VIN = 0V
Vin=3.8V IOUT=1mA
V IN ≤4.3V, 1mA ≤IL ≤ 150mA
B1121-5.0 VOUT = 5.0V, VIN = 0V
MIN
2.97
2.955
3.250
3.20
4925
4.850
Output Voltage
Output Voltage
Output Voltage Temperature
Coefficient
Line Regulation (Note 3)
Load Regulation (Note 5)
Dropout Voltage
Ground Current
Dropout Ground Current
Current Limit
Thermal Regulation
Output Noise,
10Hz to 100KHz
-25 °C ≤ Tj ≤ 85 °C
Full Operating Temperature
100µA ≤ IL ≤ 150mA, Tj ≤ T jmax
(Note 1)
0.985 [ Vo ]
0.980 [ Vo ]
0.976 [Vo ]
VO + 1V ≤ VIN ≤ 30V (Note 4)
100µA ≤ IL ≤ 100mA
IL = 100µA
IL = 150mA
IL = 100µA
IL = 150mA
VIN = VO - 0.5V, IL = 100µA
VOUT = 0
CL = 1µF
CL = 200µF
CL = 3.3µF
(Bypass = 0.01 µF pins 7 to 1 for
B1121-XX)
TYP
3.00
3.00
16
3.30
3.30
16
5.00
5.00
16
Vo
Vo
50
0.04
0.1
50
440
75
8
110
160
0.05
430
160
100
MAX
UNIT
3.03
V
3.045
25
µA
3.35
V
3.366
25
µA
5.075
V
5.150
25
µA
1.015 [ Vo ]
1.020 [ Vo ]
1.024 [ Vo ]
150
V
V
ppm / ° C
0.4
%
0.3
%
80
mV
550
700
120
µA
14
mA
170
µA
200
mA
0.2
%/W
µVrms
Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 989-7144, Fax: (925) 940-9556
www.baylinear.com