BAYLI B033N-2.5, B033N-1.8, B033D-ADJ, B033D-5, B033D-3.3 Datasheet
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Bay Linear
Inspire the Linear Power
1.0Amp Low Dropout Voltage Regulator |
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B033 |
Adjustable & Fix (0.40Volt Dropout) |
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Description
The Bay Linear B033 is a three terminal positive NPN regulator offered as adjustable or fix voltages of 1.8V, 2.5V, 3.0V, 3.3V, and 5Volts. The output current has a capability up to 1.0Amp,. This device has been optimized for low voltage where transient response and minimum input voltage are critical. The 2.85V version is designed specifically to be used in active terminators for SCSI bus.
Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-Chip thermal limiting provides protection against any combination of overload and ambient temperatures that would create excessive junction temperatures.
The B033 is offered in a 3-pin SOT-223, and TO-252 (DPAK) packages compatible with other 3 terminal regulators. 5-pin version in TO-263 with lower dropout of 0.4 volt is available.
Features
•Adjustable Output Down to 1.2V
•Output Current of 1.0Amp
•Low Dropout 1.0V for B033
•Dropout of 0.40 V in for B033A
•Adjustable & Fix 1.8V, 2.5V, 3.0V, 3.3V, 5.0V
•Current & Thermal Limiting
•Lower Cost SOT-89 Package
•Available in SOT-223, and TO-252, & TO-263
•Similar to industry BAOOT/FP
Applications
•Active SCSI terminators
•High efficiency Linear Regulator
•Post regulators fro Switching Supplies
•Battery Charger
•5V to 3.3V linear Regulators
•Motherboard Clock Supplies
Pin Connection |
Ordering Information |
TO-252
SOT-223
Tab VGND
1 2 3
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Adj/GNDVCC GNDOUT OUTIN |
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Vcc GND Vout |
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Front View |
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Front View
Devices |
Package |
Temp. |
B033D-X |
TO-252 |
0 °C to 125 °C |
B033N-X |
TO-223 |
0 °C to 125 °C |
B033T-X |
TO-220 |
0 °C to 125 °C |
B033S-X |
TO-263 |
0 °C to 125 °C |
SOT-223-5
Tab VOUT
1 |
2 |
3 |
4 |
5 |
Front View
#1 Sense
#2 Adj/GND
#3 OUT
#4 Control
#5 VIN
5 VPOWER |
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4 |
VCONTROL |
3 |
OUTPUT |
2 |
ADJ/GND. |
1 SENSE |
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TO-263-5 Package |
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Bay Linear, Inc 2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556 |
www.baylinear.com |
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B033 |
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Absolute Maximum Rating |
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Parameter |
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Min |
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Max |
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Unit |
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Maximum Input Voltage |
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7.0 |
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V |
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Operating Junction Temperature Range |
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0 |
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125 |
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°C |
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Storage Temperature Range |
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-65 |
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150 |
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Lead Temperature (Soldering 10 Sec.) |
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300 |
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Electrical Characteristics |
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(VIN = 7V; TJ=25°C IO = 10mA to 1.0Amp, unless otherwise specified) |
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Parameter |
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Symbol |
Conditions |
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MIN |
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TYP |
MAX |
UNIT |
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Reference Voltage |
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VO |
B033-adj, IOUT=10mA, VIN-VOUT=2V, TJ=25°C |
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1.213 |
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1.250 |
1.288 |
V |
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1.5V≤(VIN-VOUT) ≤5.75V |
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1.200 |
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1.250 |
1.300 |
V |
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10mA≤IOUT≤IFULL LOAD |
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-3% |
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+3% |
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Line Regulation (1) |
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REG (line) |
(VOUT+1.5)≤VIN≤7V, IOUT=10mA |
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0.010 |
0.6 |
% |
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Load Regulation (1) |
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REG (LOAD) |
(Vin-Vout)=2V |
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10mA≤IOUT≤IFULL LOAD |
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0.10 |
0.9 |
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T= 25 °C |
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Output Voltage |
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VO |
B033-1.8 IOUT=10mA, VIN=3.8V, TJ=25°C |
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1.710 |
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1.80 |
1.890 |
V |
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0≤IOUT≤1.0Amp, 3.2V≤VIN≤7V |
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B033-2.5 IOUT=10mA, VIN=4.5V, TJ=25°C |
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2.375 |
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2.50 |
2.625 |
V |
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0≤IOUT≤1.0Amp, 4.0V≤VIN≤7V |
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B033-3.0 IOUT=10mA, VIN=4.85V, TJ=25°C |
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2.850 |
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3.00 |
3.150 |
V |
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0≤IOUT≤1.0Amp, 4.35V≤VIN≤7V |
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B033-3.3 IOUT=10mA, VIN=5.0V, TJ=25°C |
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3.13 |
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3.30 |
3.470 |
V |
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0≤IOUT≤1.0Amp, 4.8V≤VIN≤7V |
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B033-5.0 IOUT=10mA, VIN=6.0V, TJ=25°C |
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4.750 |
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5.00 |
5.250 |
V |
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0≤IOUT≤1.0Amp, 6.5V≤VIN≤7V |
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Dropout Voltage (3 pin) |
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VD |
Control Input |
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VPOWER=VOUT+0.8, ILOAD =10mA |
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0.80 |
1.00 |
V |
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VPOWER=VOUT+0.8, ILOAD =1.0Amp, |
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0.80 |
1.10 |
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Dropout Voltage (5pin) |
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VD |
Power Input |
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0.35 |
0.40 |
V |
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VCONTROL=VOUT-+2.5V, ILOAD=1.0Amp, |
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Current Limit |
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IS |
(Vin-Vout)=2V |
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1.0 |
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1.1 |
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A |
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Minimum Load Current |
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IMIN LOAD |
1.5V≤(VIN-VOUT) ≤5.75V |
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10 |
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mA |
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Temperature Regulation |
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TA |
T= 25 °C, 30ms pulse |
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0.004 |
0.02 |
%/W |
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Long Term Stability |
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T= 25 °C, 1000Hrs |
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0.03 |
1.0 |
% |
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Temperature Stability |
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TS |
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0.5 |
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% |
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Adjust pin Current |
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T= 25 °C |
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35 |
120 |
µA |
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Ripple Rejection |
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RA |
F=120Hz, CADJ=22µF, COUT=22µF Tantalum |
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60 |
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75 |
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dB |
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IOUT=IFULL LOAD, (Vin-Vout)=3V (Note 5) |
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Thermal Shutdown |
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155 |
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°C |
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Thermal Shutdown |
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10 |
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°C |
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Hysterics |
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Thermal Resistance |
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SOT-223 |
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15 |
15 |
°C/W |
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Junction to case |
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DD Package |
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3.0 |
3.0 |
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Note: Output Switch tests are performed under pulsed conditions to minimize power dissipation |
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Bay Linear, Inc 2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556 |
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www.baylinear.com |
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B033
TYPICAL CHRACTRISTICS
B033-2.85
B033-ADJ
Bay Linear, Inc 2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556 |
www.baylinear.com |
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