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Part: B4250CR-3.6
Category:
Description: 3.6V 250mA CMOS Low Dropout LDO
Company: Bay Linear
Datasheet: Download B4250CR-3.6 datasheet File size : 46 kB
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Datasheet text preview:
Bay Bay Linear
Inspire Inspire the Linear Power
250 mA CMOS Low Dropout LDO Description
The B4250 series are a group of positive output voltage, three-pin regulators, which provide a high current even when the input/output voltage differential is small. Low power consumption and high accuracy is achieved though CMOS and programmable fuse technologies. Output voltage: 2.0V to 6.0V in 0.1V increments. The B4250 consists of a high-precision voltage reference, an error correction circuit, and a current limited output driver. Available in SOT-23 (150mW) and SOT-89 (500mW) packages minimizing the usage of board real state.
B4250
Features
· · · · · Maximum output current: 250 mA. Highly accurate: Output voltage +/- 2%. (1%) CMOS low power consumption. Small input/output differential: 0.38V at 160mA (Vout=3.3V) 0.12V at 100mA (Vout=5V) Pin-to-Pin Improve XC62FP/XC6201
Applications
· · · · Battery Powered Equipment Notebook PC, Palmtops, PDA Portable Cameras and Video Recorders Reference Voltage Sources
Pin Connection
Ordering Information
-40°C to +125°C ° ° Package
SOT-23 SOT-89
Part No.
B4250CK3 -X.X B4250CR-X.X
SOT-23-3 (K3)
Vin
3 1 2
SOT-89 (R)
Vin 2 1 Vss 2 3
X.X = Fixed Output Voltages from 2.0V to 6.0V
Vs s
Vout
Top View
Vin Vout
Top View
Bay Linear, Inc
2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
B4250
Absolute Maximum Ratings
Parameter Input Voltage Output Current Output Voltage Continual Total Power Dissipation Operating Ambient Temperature Storage Temperature Symbol VIN I OUT VOUT SOT-23 SOT-89 Pd TOPR TSTG Ratings 12 500 VSS -0.3 to VIN 0.3 150 500 -30 to 80 -40 to 125 Units V mA V mW °C °C
Electrical Characteristics (Ta = 25°C, VIN = VOUT + 1V; unless otherwise noted) °
Parameter Output Voltage Line Regulation VOUT/VIN-VOUT Load Regulation Current Consumption Dropout Voltage 3.3V 5.0V 3.3V 5.0V 3.3V 5.0V 3.3V 5.0V 3.3V 5.0V Conditions IO = 40mA, VIN = 4.3V IO = 40mA, VIN = 6.0V IO = 40mA, 4.3V
Marking Format SOT-23 SOT-89
CXWW
C = B4250
B4250 XZYWW
Variables
X = Voltage Codes
B = 2.0 C = 2.5 D = 2.8 E = 3.0 F= G= H= 3.3 3.5 5.0
Z = Production Code
Y = Year 01 = 2001 02 = 2002 03 = 2004 etc
WW = Work Week Code SOT-23 = 01 to 99 SOT-89 = 01 to 52
Bay Linear, Inc
2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
B4250
Output Voltage vs. Output Current
B4250-3.0
Output Voltage vs. Input Voltage
B4250-3.0
Dropout Voltage vs. Output Current
B4250-3.0
Bay Linear, Inc
2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
B4250
Supply Current vs. Input Voltage (B4250-3.0)
Input Transient Response (B4250-3.0)
Load Transient Response (B4250-3.0)
Ripple Rejection Ratio (B4250-3.0)
Bay Linear, Inc
2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
B4250
STANDARD CIRCUIT
VIN VIN CIN Tantanium VSS
VOUT
CL 1 µ F Tantanium
RL
SOT-23
0.015 - 0.018 (0.381 - 0.457)
0.047 - 0.055 0.083 - 0.098 (1.194 - 1.397) (2.108 - 2.489)
0.035 - 0.040 (0.889 - 1.016) 0.020 - 0.024 (0.508 - 0.610) 0.070 - 0.080 (1.778 - 2.032)
0.110 - 0.120 (2.794 - 3.048)
0.003 - 0.005 (0.076 - 0.127)
0.001 - 0.004 (0.025 - 0.102)
0.030 - 0.041 (0.762 - 1.041)
0.018 - 0.024 (0.457 - 0.610)
Bay Linear, Inc
2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
Others parts begin by b4
B4-1 B4-2 B4-3 B4-4
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