LT1521IST-3.3#PBF Linear Technology, LT1521IST-3.3#PBF Datasheet - Page 15

• Manufacturer Part Number: LT1521IST-3.3#PBF
• Description: IC LDO REG W/SD 3.3V SOT223-3
• Manufacturer: Linear Technology

Specifications of LT1521IST-3.3#PBF

• Regulator Topology: Positive Fixed
• Voltage - Output: 3.3V
• Voltage - Input: 4.3 ~ 20 V
• Voltage - Dropout (typical): 0.5V @ 300mA
• Number Of Regulators: 1
• Current - Output: 300mA
• Current - Limit (min): 320mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SOT-223 (3 leads + Tab), SC-73, TO-261
• Voltage Regulator Type: Linear
• Topology: LDO
• Regulator Output Type: Fixed
• Polarity Type: Positive
• Number Of Outputs: Single
• Input Voltage (min): -20V
• Input Voltage (max): 20V
• Output Voltage: 3.3V
• Package Type: SOT-223
• Output Current: 300mA
• Load Regulation: -30mV
• Line Regulation: 20mV
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Dropout Voltage@current (max): 0.17@1mA/0.6@300mA
• Dropout Voltage@current (typ): 0.13@1mA/0.5@300mA
• Pin Count: 3 +Tab
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS Compliant

PACKAGE
0.264 – 0.287
(6.70 – 7.30)
0.130 – 0.146
(3.30 – 3.71)
DESCRIPTION
(1.80)
0.071
MAX
0.0905
(2.30)
NOM
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
0.248 – 0.264
0.114 – 0.124
(6.30 – 6.71)
(2.90 – 3.15)
0.024 – 0.033
(0.60 – 0.84)
U
(4.60)
0.181
NOM
(Reference LTC DWG # 05-08-1630)
3-Lead Plastic SOT-223
ST Package
0.033 – 0.041
(0.84 – 1.04)
(0.31)
0.012
MIN
MAX
10
10 – 16
(0.0203 – 0.1016)
0.0008 – 0.0040
LT1521-3.3/LT1521-5
LT1521/LT1521-3
10 – 16
ST3 (SOT-233) 1298
0.010 – 0.014
(0.25 – 0.36)
15
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