LT1085CM-3.3#PBF Linear Technology, LT1085CM-3.3#PBF Datasheet - Page 16

• Manufacturer Part Number: LT1085CM-3.3#PBF
• Description: IC LDO REG FIXED 3.3V 3A DDPAK-3
• Manufacturer: Linear Technology

Specifications of LT1085CM-3.3#PBF

• Regulator Topology: Positive Fixed
• Voltage - Output: 3.3V
• Voltage - Input: Up to 25V
• Voltage - Dropout (typical): 1.3V @ 3A
• Number Of Regulators: 1
• Current - Output: 3A
• Current - Limit (min): 3.2A
• Operating Temperature: 0°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: TO-263-2, D⊃2Pak (2 leads + Tab), TO-263AB
• Primary Input Voltage: 20V
• Output Voltage Fixed: 3.3V
• Dropout Voltage Vdo: 1.3V
• No. Of Pins: 3
• Output Current: 3A
• Operating Temperature Range: 0°C To +125°C
• Msl: MSL 1 - Unlimited
• Rohs Compliant: Yes
• Voltage Regulator Type: Linear
• Topology: LDO
• Regulator Output Type: Fixed
• Polarity Type: Positive
• Number Of Outputs: Single
• Input Voltage (min): 4.3V
• Input Voltage (max): 25V
• Output Voltage: 3.3V
• Package Type: DDPAK
• Power Dissipation: 30W
• Load Regulation: 0.1%
• Line Regulation: 0.015%
• Output Voltage Accuracy: ±1%
• Operating Temp Range: 0C to 150C
• Operating Temperature Classification: Commercial
• Dropout Voltage@current (max): 1.5@3A
• Dropout Voltage@current (typ): 1.3@3A
• Pin Count: 3 +Tab
• Mounting: Surface Mount
• Quiescent Current (max): 10mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PACKAGE DESCRIPTION
LT1083/LT1084/LT1085
16
(1.524)
.060
HATCHED AREA IS SOLDER PLATED
RECOMMENDED SOLDER PAD LAYOUT
BOTTOM VIEW OF DD PAK
.100
COPPER HEAT SINK
(10.67 – 12.19)
(8.13 – 8.89)
.320 – .350
.420 – .480
(6.502)
(7.620)
.256
.300
.420
(1.524)
(1.905)
.075
.060
.070
(4.648)
.183
(19.30 – 19.69)
.090
.760 – .775
.350
.565
(0.965 – 1.09)
.038 – .043
(1.524)
.060
TYP
(8.382 – 9.398)
(
3.632
.330 – .370
.143
OBSOLETE PACKAGE
+0.305
–0.508
+.012
–.020
(Reference LTC DWG # 05-08-1310)
(Reference LTC DWG # 05-08-1460)
(1.524 – 3.429)
NOTE:
1. DIMENSIONS IN INCH/(MILLIMETER)
2. DRAWING NOT TO SCALE
.060 – .135
)
2-Lead TO-3 Metal Can
3-Lead Plastic DD Pak
M Package
K Package
(10.80 – 11.05)
(1.270)
.425 – .435
.050
(5.33 – 5.59)
.210 – .220
(2.54)
.100
BSC
(9.906 – 10.541)
.390 – .415
(1.70 – 1.96)
.067 – .077
15°
.080
FOR THICKER SOLDER PASTE APPLICATIONS
.205
.320
(29.90 – 30.40)
1.177 – 1.197
RECOMMENDED SOLDER PAD LAYOUT
(4.191 – 4.572)
.100
.165 – .180
(0.330 – 0.584)
.013 – .023
(1.499)
(12.45 – 12.95)
.059
.490 – .510
.420
.276
R
(16.64 – 17.15)
.655 – .675
(4.24 – 4.49)
.167 – .177
.070
(3.86 – 4.09)
.151 – .161
DIA, 2PLCS
R
(1.143 – 1.397)
.090
(
0.102
(2.413 – 2.921)
.325
.045 – .055
K2 (TO-3) 080
.004
(1.270 ± 0.305)
.095 – .115
M (DD3) 0204
.050 ± .012
+0.203
–0.102
+.008
–.004
.565
)
108345fg