TC115 _ BDTIC a Leading Distributor in China

TC115

The TC115 is a high-efficiency step-up DC/DC converter for small, low input voltage or battery powered sys-tems. This device has a guaranteed start-up voltage of 0.9V and a typical supply current of 80 µA. Phase compensation and soft-start circuitry are included on-chip. Unlike conventional PWM step-up converters, the TC115 automatically shifts to pulse frequency modulation (PFM) at low loads, resulting in reduced supply current and improved efficiency. The TC115 requires only an external diode, an inductor, and a capacitor, and supports typical output currents of 140 mA. Supply current is reduced to less than 0.5 µA, max when SHDN input is brought low. Small size, low installed cost, and low supply current make the TC115 step-up converter ideal for use in a wide range of battery powered systems.

Features

High Efficiency at Low Output Load Currents via PFM Mode
Guaranteed Start-Up at 0.9V
80 µA (typ.) Supply Current
85% (typ.) Efficiency at 100 mA
140 mA Typical Output Current @ VIN = 2.0V
Low Power Shutdown Mode
No External Switching Transistor Needed

Parameter

Parameter Name Value	Value
Regulator Type Step Up (Boost)	Step Up (Boost)
Input Voltage Range Min (V) 2.2	2.2
Input Voltage Range Max (V) 10	10
Output Voltage Range Min (V) 3	3
Output Voltage Range Max (V) 5	5
Quiescent Current (mA) typ 0.08	0.08
Switching Frequency (kHz) 100	100
Operating Temp Range -40 to 85	-40 to 85
Duty Cycle Max (%) 92	92
SHUTDOWN Current (µA) (Typ) 0.5	0.5
Light Load Efficiency Mode Yes	Yes
Switch current (A) typ 0.35	0.35

Documents

TC115 Datasheet	Data Sheets	02/05/2013	218KB
Analog & Interface Guide (Volume 2)	Brochures	10/11/2005	1067KB
Quick Guide to Microchip Development Tools	Brochures	10/15/2014	11223KB
Analog & Interface Product Selector Guide	Product Line Card	03/21/2016	4116KB
TC115 Evaluation Board User's Guide	User Guides	01/16/2009	194KB

Ordering Information

Part Number	Leads	Package Type	Temp Range	Packing	1+	26+	100+	1000+	5000+
TC115301EMTTR	5	SOT-89	-40C to +85C	T/R	1.90	1.58	1.44	1.20	1.11
TC115311EMTTR	5	SOT-89	-40C to +85C	T/R	1.90	1.58	1.44	1.20	1.11
TC115331EMTTR	5	SOT-89	-40C to +85C	T/R	**	**	**	**	**

RoHS Information

PartNumber	DeviceWeight	ShippingWeight	LeadCount	PackageType	PackageWidth	SolderComposition	JEDECIndicator
TC115331EMTTR	0.016000	0.136000	5	SOT-89	-	Matte Tin	e3
TC115501EMTTR	0.016000	0.136000	5	SOT-89	-	Matte Tin	e3
TC115301EMTTR	0.016000	0.136000	5	SOT-89	-	Matte Tin	e3
TC115311EMTTR	0.016000	0.136000	5	SOT-89	-	Matte Tin	e3