Getting Power from Earphone Jack Reference Design

(ACTIVE) PMP9777

Description & Features

Technical Documents

Support & Training

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View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


Description

This design is for powering a small system attached to a smartphone audio jack.  The reference design includes a charge pump and a boost converter. The charge pump is used to filter AC input into a DC voltage and the ultra-low quiescent current boost converter TPS610981 is used to generate a stable 3.3V.

Features

  • Low input voltage range
  • High efficiency boost converter
  • Small solution size


View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




Parametrics
 PMP9777.1
(Output Voltage 1)
Vin (Min) (V).4
Vin (Max) (V)2.2
Vout (Nom) (V)3.3
Iout (Max) (A).001
Output Power (W).0033
Isolated/Non-IsolatedNon-Isolated
Input TypeAC
TopologyBoost- Synchronous

TI Devices (3)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD17483F4  30V, N-Channel FemtoFET™MOSFET  Power MOSFET  Sample & Buy Not Available
LMV7271  Single 1.8V Low Power Comparators with Rail-to-Rail Input  Amplifiers  Sample & Buy Not Available
TPS610981  Low Input Voltage Synchronous Boost Converter with Integrated LDO/Load Switch  Step-Up (Boost)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 874 18 Nov 2015 582
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 464 10 Dec 2015 44
ZIP 6146 10 Dec 2015 18
PDF 233 10 Dec 2015 23
PDF 60 10 Dec 2015 18
PDF 245 10 Dec 2015 27
PDF 65 10 Dec 2015 428


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