LT1129IST-3.3#PBF Linear Technology, LT1129IST-3.3#PBF Datasheet - Page 14

• Manufacturer Part Number: LT1129IST-3.3#PBF
• Description: IC LDO REG W/SD 3.3V SOT223-3
• Manufacturer: Linear Technology

Specifications of LT1129IST-3.3#PBF

• Regulator Topology: Positive Fixed
• Voltage - Output: 3.3V
• Voltage - Input: 4.15 ~ 30 V
• Voltage - Dropout (typical): 0.45V @ 700mA
• Number Of Regulators: 1
• Current - Output: 700mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SOT-223 (3 leads + Tab), SC-73, TO-261
• Primary Input Voltage: 20V
• Output Voltage Fixed: 3.3V
• Dropout Voltage Vdo: 400mV
• No. Of Pins: 3
• Output Current: 700mA
• Operating Temperature Range: -40°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): 4.15V
• Input Voltage (max): 30V
• Output Voltage: 3.3V
• Package Type: SOT-223
• Load Regulation: 20mV
• Line Regulation: 10mV
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Dropout Voltage@current (max): 0.2@10mA/0.35@100mA
• Dropout Voltage@current (typ): 0.13@10mA/0.25@100mA
• Pin Count: 3 +Tab
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Compliant

PACKAGE DESCRIPTION
LT1129/LT1129-3.3/LT1129-5
14
(1.524)
.060
HATCHED AREA IS SOLDER PLATED
BOTTOM VIEW OF DD PAK
COPPER HEAT SINK
(6.502)
(7.620)
.256
.300
(1.905)
(1.524)
.075
.060
RECOMMENDED SOLDER PAD LAYOUT
NOTE:
1. DIMENSIONS IN INCH/(MILLIMETER)
2. DRAWING NOT TO SCALE
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 representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
(4.648)
.183
.067
.420
(1.524)
.060
TYP
(8.382 – 9.398)
(
3.632
.330 – .370
.143
+0.305
–0.508
+.012
–.020
5-Lead Plastic DD Pak
(LTC DWG # 05-08-1461)
)
.042
.090
.350
Q Package
.565
(0.711 – 0.965)
.028 – .038
TYP
.080
(9.906 – 10.541)
FOR THICKER SOLDER PASTE APPLICATIONS
.205
.390 – .415
.320
(1.702)
RECOMMENDED SOLDER PAD LAYOUT
.067
BSC
15° TYP
.067
.420
.276
(4.191 – 4.572)
.165 – .180
(0.330 – 0.584)
.013 – .023
(1.499)
.059
TYP
.042
.090
.325
.565
(1.143 – 1.397)
(
0.102
.045 – .055
(2.413 – 2.921)
.004
(1.270 ± 0.305)
.095 – .115
.050 ± .012
+0.203
–0.102
+.008
–.004
Q(DD5) 0502
)
112935ff