TC105 by Microchip Technology

PFM/PWM Step-Down DC/DC Converter


The TC105 is a step-down (Buck) switching controller that furnishes output currents of up to 1A (max) while delivering a typical efficiency of 92%. The TC105 normally operates in pulse width modulation mode (PWM), but automatically switches to pulse frequency modulation (PFM) at low output loads for greater efficiency. Oscillator frequency is 300 KHz, allowing use of small (22 µH) inductors. Supply current draw is only 102 µA (max), and is reduced to less than 0.5 µA when the SHDN input is brought low. Regulator operation is suspended during shutdown. The TC105 accepts a maximum input voltage of 10V. The TC105 is housed in a tiny 5-pin SOT-23A package, occupies minimum board space, and is ideal for a wide range of applications.

Where to Buy

Prices starting from US$0.36

Distributor Stock
Logo for Newark
Newark Electronics
from US$0.38
56,531
in stock
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Logo for RS Americas
RS Americas
from US$0.38
12,738
in stock
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Logo for Sager
Sager
from US$0.39
9,709
in stock
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Logo for RS UK
RS
from US$839.26
8,000
in stock
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FDH Electronics
from US$0.40
1,263
in stock
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Logo for element14 Singapore
element14
from US$760.01
101
in stock
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Farnell
from US$804.69
29
in stock
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Logo for Carlton-Bates
Carlton-Bates
from US$0.36
0
in stock
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Features

57 µA (Typ) Supply Current
1A Output Current
0.5 µA Shutdown Mode
300 KHz Switching Frequency for Small Inductor Size
Programmable Soft-Start
92% Typical Efficiency

Specifications

Regulator Type Step Down (Buck)
pricing 0
Supported Topology Step-Down (Buck)
Supported Output 0
Minimum Input Voltage (V) 0
Maximum Input Voltage (V) 10
Output Current (mA) Max 1000
Maximum Frequency (kHz) 345
Vref (V) 0
Duty Cycle Min (%) 0
Duty Cycle Max (%) 100
Switching Frequency (kHz) 300
Input Voltage Range Min 0.9
Input Voltage Range Max 10
Output Current 0
Temp Range Min -40
Temp Range Max 85
Quiescent Current (mA) typ 0.057
Light Load Efficiency Mode Yes
Switch current (A) typ 0
Automotive Qualified No
SHUTDOWN Current (µA) (Typ) 0
# of Outputs 1
Vfb (V) 0
Synchronous Rectifier No


TC105 Cable Management by ABB Group

CABLE TIE MOUNT ALUMINIUM SILVER

Status: Unknown
Series: Ty-Rap Series
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Mount Fixing Type Adhesive Screw
Mounting Hole Dia 4.9mm
Mount Colour Silver
Mount Material Aluminium
Length 25.4mm
Width 12.7mm
Height -
Product Range Ty-Rap Series
SVHC No SVHC (15-Jan-2018)
Cable Tie Width Max 4.8mm
Fixing Hole Diameter 4.9mm

Last 6 months Inventory & Pricing History


Alternative Descriptions

Cable Tie Mtg Base, Aluminum, 25.4Mm L X 12.7Mm W | Newark Electronics
Cable Mounting & Accessories | Sager
Thomas & Betts TC 105 Cable Tie Mount | RS
CABLE TIE MTG BASE, ALUMINUM, 25.4MM L X 12.7MM W | element14
CABLE TIE MOUNT, ALUMINIUM, SILVER | Farnell
Cable Tie Mounting Non-Adhesive Aluminum | Carlton-Bates

Frequently Asked Questions

Where can I find additional details, specifications and documents for a TC105?

Additional datasheets, footprints and schematics for TC105 are listed on our Part Details page. You can also find images and similar parts to TC105 on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for TC105 on our Product Comparison page. Access via the 'View Pricing & Stock' button to view TC105 price breaks, MOQs, lead times, inventory and SKUs from distributors.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the TC105 you can contact the distributor directly for product support, shipping queries etc.

Is the TC105 RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for TC105 have stock available?

Authorised distributors including Newark Electronics, RS Americas, Sager, RS and FDH Electronics have stock available or on a lead time for TC105.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for TC105 often in real-time on the comparison pages.

What if I can't find stock of TC105?

You can fill out our help required form which you can use to request a quote for TC105 from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.