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Product details

Parameters

Regulated outputs (#) 6 Vin (Min) (V) 2.5 Vin (Max) (V) 6 Iout (Max) (A) 1.2 Step-down DC/DC controller 0 Step-down DC/DC converter 3 Step-up DC/DC controller 0 Step-up DC/DC converter 0 LDO 3 Iq (Typ) (mA) 0.085 Features Comm Control, Power Good, Power Sequencing Operating temperature range (C) -40 to 85 Rating Catalog Processor name PXA270, DM320 Processor supplier Marvell, Texas Instruments Shutdown current (Typ) (uA) 23 Configurability Hardware configurable, Software configurable open-in-new Find other Multi-channel ICs (PMIC)

Package | Pins | Size

VQFN (RHA) 40 36 mm² 6 x 6 open-in-new Find other Multi-channel ICs (PMIC)

Features

  • 1.2-A, 97% Efficient Step-Down Converter for
    System Voltage (VDCDC1)
  • 1-A, Up to 95% Efficient Step-Down Converter for
    Memory Voltage (VDCDC2)
  • 900-mA, 90% Efficient Step-Down Converter for
    Processor Core (VDCDC3)
  • 30-mA LDO and Switch for Real-Time Clock
    (VRTC)
  • 2 × 200-mA General-Purpose LDO
  • Dynamic Voltage Management for Processor Core
  • Preselectable LDO Voltage Using Two Digital
    Input Pins
  • Externally Adjustable Reset Delay Time
  • Battery Backup Functionality
  • Separate Enable Pins for Inductive Converters
  • I2C-Compatible Serial Interface
  • 85-µA Quiescent Current
  • Low-Ripple PFM Mode
  • Thermal Shutdown Protection
  • 40-Pin 6-mm × 6-mm VQFN Package
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Description

The TPS65021 device is an integrated power management IC for applications powered by one Li-Ion or Li-Polymer cell, and which requires multiple power rails. The TPS65021 device provides three highly efficient, step-down converters targeted at providing the core voltage, peripheral, I/O, and memory rails in a processor-based system. All three step-down converters enter a low-power mode at light load for maximum efficiency across the widest possible range of load currents.

The TPS65021 device also integrates two general-purpose 200-mA LDO voltage regulators, which are enabled with an external input pin. Each LDO operates with an input voltage range from 1.5 V to 6.5 V, thus allowing them to be supplied from one of the step-down converters or directly from the battery. The default output voltage of the LDOs can be digitally set to 4 different voltage combinations using the DEFLDO1 and DEFLDO2 pins. The serial interface can be used for dynamic voltage scaling, masking interrupts, or for disabling or enabling and setting the LDO output voltages. The interface is compatible with both the fast and standard mode I2C specifications, allowing transfers at up to 400 kHz. The TPS65021 device is available in a 40-pin (RHA) VQFN package, and operates over a free-air temperature of –40°C to +85°C.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS65021 Power Management IC For Li-Ion or Li-Polymer Powered Systems datasheet (Rev. D) Sep. 22, 2014
Application note LDO Noise Demystified (Rev. B) Aug. 18, 2020
Application note LDO PSRR Measurement Simplified (Rev. A) Aug. 09, 2017
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) Aug. 17, 2015
Application note Optimizing Resistor Dividers at a Comparator (Rev. A) Jun. 03, 2013
User guide TPS65021EVM-110 Users Guide Dec. 15, 2005

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Software development

GUI FOR EVALUATION MODULE (EVM) Download
SLVC086A.ZIP (12459 KB)

Design tools & simulation

GERBER FILE Download
SLVC144.ZIP (182 KB)

CAD/CAE symbols

Package Pins Download
VQFN (RHA) 40 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

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