Product details

Vin (Min) (V) 2.3 Vin (Max) (V) 5.5 Vout (Min) (V) 5.1 Vout (Max) (V) 5.1 Switch current limit (Typ) (A) 8 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 750 Switching frequency (Max) (kHz) 1250 Iq (Typ) (mA) 0.01 Features Enable, Light Load Efficiency, Synchronous Rectification Duty cycle (Max) (%) 90 Operating temperature range (C) -40 to 85 Rating Catalog
Vin (Min) (V) 2.3 Vin (Max) (V) 5.5 Vout (Min) (V) 5.1 Vout (Max) (V) 5.1 Switch current limit (Typ) (A) 8 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 750 Switching frequency (Max) (kHz) 1250 Iq (Typ) (mA) 0.01 Features Enable, Light Load Efficiency, Synchronous Rectification Duty cycle (Max) (%) 90 Operating temperature range (C) -40 to 85 Rating Catalog
VQFN-HR (RWL) 9 6 mm² 2.5 x 2.5
  • Up to 97% Efficiency Synchronous Boost
  • Up to 3.5-A IOUT for 3.3-V to 5-V Conversion
  • 10-A 14-mΩ/14-mΩ Internal Power Switches
  • Programmable Constant Output Current
  • Output Current Monitor
  • 10-µA IQ under Light Load Condition
  • Boost Status Indication
  • True disconnection during shutdown
  • Fixed 5.1-V Output Voltage (TPS61235P) or
    Adjustable Output Voltage from 2.9-V to-5.5 V
    (TPS61236P)
  • 1-MHz Switching Frequency
  • Softstart, Current Limit, Over Voltage and Over
    Thermal Protections
  • 2.5 mm × 2.5 mm VQFN Package
  • Up to 97% Efficiency Synchronous Boost
  • Up to 3.5-A IOUT for 3.3-V to 5-V Conversion
  • 10-A 14-mΩ/14-mΩ Internal Power Switches
  • Programmable Constant Output Current
  • Output Current Monitor
  • 10-µA IQ under Light Load Condition
  • Boost Status Indication
  • True disconnection during shutdown
  • Fixed 5.1-V Output Voltage (TPS61235P) or
    Adjustable Output Voltage from 2.9-V to-5.5 V
    (TPS61236P)
  • 1-MHz Switching Frequency
  • Softstart, Current Limit, Over Voltage and Over
    Thermal Protections
  • 2.5 mm × 2.5 mm VQFN Package

The TPS6123x is a high current, high efficiency synchronous boost converter with constant output current feature for single cell Li-Ion and Li-polymer battery powered products, in a wide range of power bank, tablet, and other portable devices. The IC integrates 14-mΩ/14-mΩ power switches and is capable of delivering up to a 3.5-A output current for 3.3-V to 5-V conversion with up to 97% high efficiency. The device supports a programmable constant output current to control power delivery, so to save power path components and lower total system thermal dissipation effectively.

The device only consumes a 10-µA quiescent current under a light load condition, and can report load status to the system, which make it very suitable for Always-On applications. With the TPS6123x, a simple and flexible system design can be achieved, eliminating external power path components, saving PCB space, and reducing BOM cost.

In shutdown, the output is completely disconnected from the input, and current consumption is reduced to less than 1 µA. Other features like soft start control, reverse current blocking, over voltage protection, and thermal shutdown protection are built-in for system safety.

The devices are available in a 2.5-mm × 2.5-mm VQFN package.

The TPS6123x is a high current, high efficiency synchronous boost converter with constant output current feature for single cell Li-Ion and Li-polymer battery powered products, in a wide range of power bank, tablet, and other portable devices. The IC integrates 14-mΩ/14-mΩ power switches and is capable of delivering up to a 3.5-A output current for 3.3-V to 5-V conversion with up to 97% high efficiency. The device supports a programmable constant output current to control power delivery, so to save power path components and lower total system thermal dissipation effectively.

The device only consumes a 10-µA quiescent current under a light load condition, and can report load status to the system, which make it very suitable for Always-On applications. With the TPS6123x, a simple and flexible system design can be achieved, eliminating external power path components, saving PCB space, and reducing BOM cost.

In shutdown, the output is completely disconnected from the input, and current consumption is reduced to less than 1 µA. Other features like soft start control, reverse current blocking, over voltage protection, and thermal shutdown protection are built-in for system safety.

The devices are available in a 2.5-mm × 2.5-mm VQFN package.

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Technical documentation

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Type Title Date
* Data sheet TPS6123x 8-A Valley Current Synchronous Boost Converters with Constant Current Output Feature datasheet (Rev. A) 18 Apr 2016
Application note Measuring and Understanding the Output Voltage Ripple of a Boost Converter 22 Feb 2021
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. C) 08 Jan 2014
Application note Automated Frequency Response Analyzer 09 Oct 2013
Analog design journal Design considerations for a resistive feedback divider in a DC/DC converter 26 Apr 2012
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 13 Jan 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 19 Sep 2011
Analog design journal IQ: What it is, what it isn’t, and how to use it 17 Jun 2011
Application note Minimizing Ringing at the Switch Node of a Boost Converter 15 Sep 2006

Design & development

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

Evaluation board

TPS61236EVM-676 — TPS61236 Large Current Boost Converter Evaluation Module

This EVM is used to evaluate the synchronous boost converter TPS61236, which features 3A output current at 5V VOUT, < 3µA ultra-low current and programmable output current limit. The EVM can also be used to evaluate the fixed 5.1V version TPS61235. In this case the feedback resistors are (...)

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Simulation model

TPS61235 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMAU3A.ZIP (103 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Reference designs

PMP40154 — USB Type-C™ and USB PD DRP Reference Design with HDMI Output

The PMP40154 is a true USB Type-C™ and USB PD DRP reference design.  The reference design supports USB Type-C™ input to HDMI output display. It implements the USB PD controller and power switch TPS65986, and the alternate mode MUX HD3SS460. It is fully compatible with (...)
Reference designs

PMP4451 — USB-C DFP+ USB-A Power Bank with Input & Output Fast Charger Reference Design

This is a power bank reference design with a USB type C DFP plus a USB type A port supporting high voltage discharging. Fast charger input is also supported to save more charging time. It can detect the input port attach/detach automatically, as well as the output ports.
Reference designs

PMP4496 — USB-C DRP Power Bank With Fast Charger Input Reference Design

PMP4496 is a power bank reference design with a single USB type C dual role port (DRP). It can perform as a SINK or SOURCE. Role is automatically determined according to the external device attached. Fast charger input is also supported to save more charging time.
Reference designs

PMP11536 — USB-C DFP + 5V2A Power Bank With Input Fast Charger Reference Design

PMP11536 is a power bank reference design with a USB typc C DFP plus a USB type A port employing the boost mode of a Maxcharger. Fast charger input is also supported to save more charging time. It can detect the input port attach/detach events automatically, as well as the output ports.
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