Multi-Rail, Low Iq Power Reference Design for Wearable Applications
PMP9792
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Description & Features

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Description

Wearable applications like smart wristbands provide two main power rails to supply the wireless MCU, sensors, and the display. They are very tiny, and therefore require the smallest solution size possible. This reference design shows a full solution based on the TPS62770 multi-rail DC/DC converter, CC2650 wireless MCU, and a PMOLED display.

Features
  • Full adjustable Vout with TPS62770 dual output converter
  • Single-chip wearable power supply
  • Longer battery life due to ultra-low Iq
  • Bluetooth® Smart interface for smartphone interaction

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Schematic/Block Diagram

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Test Data

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Design Files

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Parametrics
 PMP9792.1
(Output Voltage 1)
PMP9792.2
(Output Voltage 2)
Vin (Min) (V)2.52.5
Vin (Max) (V)5.55.5
Vout (Nom) (V)1.812
Iout (Max) (A).3.2
Output Power (W).542.4
Isolated/Non-IsolatedIsolatedIsolated
Input TypeDCDC
TopologyBuck- SynchronousBoost- Synchronous

TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CC2650  SimpleLink multi-standard 2.4 GHz ultra-low power wireless MCU  SimpleLink Solutions  Sample & Buy View Design Kits & Evaluation Modules
TPS62770  Tiny Single-chip Dual Solution with 360nA Iq Buck and up to 15V Boost in WCSP  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CC2650 Download Download
Download Download
Download Download
TPS62770 Download -

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 1648 30 Mar 2016
Design files (3)
Title Type Size (KB) Date
ZIP 399 18 Apr 2016
PDF 28 18 Apr 2016
PDF 187 18 Apr 2016

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