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Bay Linear |
Bay Linear
Inspire the Linear Power
Dual 1.0Amp Low Dropout
Voltage Regulator
B2117
Description
The Bay Linear B2117 is a five terminal Dual positive NPN
regulator offered as adjustable or fix voltages of 1.8V, 2.5V,
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
www.DataSheet4U.ccormitical.
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 B2117 is offered in a 5-pin SOT-263,
Features
• Adjustable Output Down to 1.2V
• Output Current of 1.0Amp
• Low Dropout 1.0V for B2117
• Adjustable & Fix 1.8V, 2.5V, 3.3V
• 0.05% Load Regulation
• Current & Thermal Limiting
• Lower Cost SOT-89 Package
• Available in TO-263
Applications
• High efficiency Linear Regulator
• Post regulators fro Switching Supplies
• Battery Charger
• 5V to 3.3V linear Regulators
• Motherboard Clock Supplies
Pin Connection
Ordering Information
Devices
B2117S-X
X=output voltage
Package
TO-263
Temp.
0 °C to 125 °C
5 VADJ 2
4 VOUT 2
3 Input
2 V.OUT 1
1 VADJ 1
TO-263-5 Package
Bay Linear, Inc 2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
B2117
Absolute Maximum Rating
Parameter
Maximum Input Voltage
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering 10 Sec.)
Min Max
7.0
0 125
-65 150
300
Unit
V
°C
Electrical Characteristics
(VIN = 7V; TJ=25°C IO = 10mA to 1.0Amp, unless otherwise specified)
Parameter
www.DataSheet4U.cRoemference Voltage
Symbol
VO
Conditions
1117-adj, IOUT=10mA, VIN-VOUT=2V, TJ=25°C
1.5V≤(VIN-VOUT) ≤5.75V
10mA≤IOUT≤IFULL LOAD
Line Regulation (1)
REG (line) (VOUT+1.5)≤VIN≤7V, IOUT=10mA
MIN
1.238
1.225
-2%
TYP
1.250
1.250
0.005
MAX
1.262
1.275
+2%
0.5
UNIT
V
V
%
Load Regulation (1)
Output Voltage
Dropout Voltage
Current Limit
Minimum Load Current
Temperature Regulation
Long Term Stability
Temperature Stability
Adjust pin Current
Ripple Rejection
Thermal Shutdown
Thermal Shutdown
Hysterics
Thermal Resistance
Junction to case
REG (LOAD)
VO
VD
IS
(Vin-Vout)=2V
10mA≤IOUT≤IFULL LOAD
T= 25 °C
1117-1.8 IOUT=10mA, VIN=3.8V, TJ=25°C
0≤IOUT≤1.0Amp, 3.2V≤VIN≤7V
1117-2.5 IOUT=10mA, VIN=4.5V, TJ=25°C
0≤IOUT≤1.0Amp, 4.0V≤VIN≤7V
1117-3.3 IOUT=10mA, VIN=5.0V, TJ=25°C
0≤IOUT≤1.0Amp, 4.8V≤VIN≤7V
1117-5.0 IOUT=10mA, VIN=6.0V, TJ=25°C
0≤IOUT≤1.0Amp, 6.5V≤VIN≤7V
Control Input
VPOWER=VOUT+0.8, ILOAD =10mA
VPOWER=VOUT+0.8, ILOAD =1.0Amp,
(Vin-Vout)=2V
IMIN LOAD
TA
-
TS
-
RA
1.5V≤(VIN-VOUT) ≤5.75V
T= 25 °C, 30ms pulse
T= 25 °C, 1000Hrs
T= 25 °C
F=120Hz, CADJ=22µF, COUT=22µF Tantalum
IOUT=IFULL LOAD, (Vin-Vout)=3V (Note 5)
-
DD Package
1.782
1.746
2.475
2.450
3.267
3.235
4.950
4.900
1.0
10
60
0.05
1.80
1.80
2.50
2.50
3.30
3.30
5.00
5.00
0.80
0.80
1.1
0.004
0.03
0.5
35
75
155
10
3.0
0.5
1.818
1.854
2.525
2.550
3.333
3.365
5.050
5.100
V
V
V
V
1.20 V
1.30
A
mA
0.02 %/W
1.0 %
%
120 µA
dB
°C
°C
3.0 °C/W
Note: Output Switch tests are performed under pulsed conditions to minimize power dissipation
Bay Linear, Inc 2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
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