TC1266

Lead Style :
Capacitance :
Tolerance :
Voltage Rating :
Operating Temperature Range :
Dimensions :
Packaging : Bulk
Product : General Purpose Electrolytic Capacitors
Termination Style : Axial


Features:

• Glitch Free Transition Between Input Sources
• Automatic Input Source Selection
• External PMOS Bypass Switch Control
• Built-in 5V Detector
• 1% Regulated Output Voltage Accuracy
• 200mA Load Current Capability
• Kelvin Sense Input
• Low Dropout Voltage (240mV @ Full Load)
• Low Ground Current, Independent of Load




Application

• PCMCIA
• PCI
• Network Interface Cards (NICs)
• Cardbus^TM Technology




Pinout






Specifications

Parameter Name	Value
Max Input Voltage	6
Output Voltage (v)	3.3
Typical Active Current (A)	60
Typical Dropout Voltage @ Max. lout (mV)	200
Typical Output Voltage Accuracy (%)	1.0
Output Capacitor Type	Aluminum/Tantalum

Absolute Maximum Ratings*

Input Supply Voltage (V_IN)................. -0.5V to +7V (Max)
Auxiliary Supply Voltage (V_AUX) ......... -0.5V to +7V (Max)
LDO Output Current (I_OUT)...................................200mA
Thermal Impedance,
Junction-to-Ambient (_JA)..................130°C/W for SOIC
ESD Rating ............................................................. 2 KV
Operating Temperature Range (T_A)...... -5°C to +70°C
Storage Temperature Range (T_STG) ..-65°C to +150°C

*Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These
are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operation sections of the specifications is not implied. Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.

Description

The TC1266 is an application-specific, low dropout regulator (LDO) specifically intended for use in PCI peripheral card applications complying with PCI Power Management (PCI 2.0). It provides an uninterrupted, 3.3V, 200 mA (max) output voltage when the main (5V) or auxiliary (3.3V) input voltage supplies are present. The TC1266 consists of an LDO, a voltage threshold detector, external switchover logic and gate drive circuitry. It functions as a conventional LDO as long as the voltage on the main supply input (VIN) is above the lower threshold (3.90V typ). Should the voltage on VIN fall below the lower threshold the LDO is disabled, and an external P-channel MOSFET is automatically turned on, connecting the auxiliary supply input to VOUT, and ensuring an uninterrupted 3.3V output. The main supply is automatically selected if both the main and auxiliary input supplies are present, and transition from one input supply to the other is guaranteed glitch-free. High integration, automatic secondary supply switchover, Kelvin sensing,and small size make the TC1266 the optimum LDO for PCI 2.0 applications.




Parameters:

Technical/Catalog Information	TC1266
Vendor	Cornell Dubilier Electronics (CDE)
Category	Capacitors
Capacitance	160F
ESR (Equivalent Series Resistance)	300.0 mOhm
Features	General Purpose
Lifetime @ Temp.	1000 Hrs @ 85°C
Maximum Temperature	-40°C ~ 85°C
Size / Dimension	1.000" Dia x 2.625" H (25.40mm x 66.68mm)
Lead Spacing	-
Surface Mount Land Size	-
Mounting Type	Through Hole
Package / Case	Axial
Packaging	Bulk
Tolerance	±20%
Voltage Rating	250V
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	TC1266 TC1266