LP3986BLX-2929 National Semiconductor, LP3986BLX-2929 Datasheet - Page 2

• Manufacturer Part Number: LP3986BLX-2929
• Manufacturer: National Semiconductor

Specifications of LP3986BLX-2929

• Voltage Regulator Type: Linear
• Topology: LDO
• Regulator Output Type: Fixed
• Polarity Type: Positive
• Number Of Outputs: Dual
• Input Voltage (min): 2.7V
• Input Voltage (max): 6V
• Output Voltage: 2.9V
• Package Type: Micro SMD
• Output Current: 0.5(Typ)A
• Power Dissipation: 250mW
• Output Voltage Accuracy: ±2.5%
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Dropout Voltage@current (max): 0.002@1mA/0.1@150mA
• Pin Count: 8
• Mounting: Surface Mount
• Quiescent Current (max): 130uA
• Lead Free Status / Rohs Status: Not Compliant

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Block Diagram
Pin Descriptions
* Note: The pin numbering scheme for the micro SMD package was revised in April 2002 to conform to JEDEC standard. Only the pin numbers were revised. No
changes to the physical location of the inputs/outputs were made. For reference purposes, the obsolete numbering scheme had V
BYPASS as pin 3, GND as pins 4 and 5, EN
Connection Diagram
BYPASS
Name
V
V
GND
GND
EN
EN
OUT2
OUT1
V
IN
1
2
1
as pin 6, V
OUT1
See NS Package Number TLA08
8 Bump micro SMD Package
*micro SMD
as pin 7, and V
A1
B1
C1
C2
C3
B3
A3
A2
Top View
LP3986
IN
as pin 8.
2
Output Voltage of the second LDO
Enable input for the second LDO
Bypass capacitor for the bandgap
Common ground
Common ground
Enable input for the first LDO
Output Voltage of the first LDO
Common input for both LDOs
20003404
Function
OUT2
20003402
as pin 1, EN
2
as pin 2,