TPS61089

ACTIVE

12.6-V, 7-A Fully-Integrated Synchronous Boost Converters in 2.0-mm x 2.5-mm VQFN Package

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Product details

Parameters

Vin (Min) (V) 2.7 Vin (Max) (V) 12 Vout (Min) (V) 4.5 Vout (Max) (V) 12.6 Switch current limit (Typ) (A) 11.4 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 200 Switching frequency (Max) (kHz) 2200 Iq (Typ) (mA) 0.01 Features Adjustable Current Limit, Enable, Light Load Efficiency, Synchronous Rectification Duty cycle (Max) (%) 90 Operating temperature range (C) -40 to 85 Rating Catalog open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

VQFN-HR (RNR) 11 5 mm² 2.5 x 2 open-in-new Find other Boost converters (integrated switch)

Features

  • Input Voltage Range: 2.7 V to 12 V
  • Output Voltage Range: 4.5 V to 12.6 V
  • Up to 90% Efficiency at VIN = 3.3 V, VOUT = 9 V, and IOUT = 2 A
  • Resistor-Programmable Peak Current Limit up to 10 A for high pulse current
  • Adjustable Switching Frequency: 200 kHz to 2.2 MHz
  • 4-ms Built-in Soft Start Time
  • PFM Operation Mode at Light Load (TPS61089)
  • Forced PWM Operation Mode at Light Load (TPS610891)
  • Internal Output Overvoltage Protection at 13.2 V
  • Cycle-by-Cycle Overcurrent Protection
  • Thermal Shutdown
  • 2.00-mm × 2.50-mm VQFN Hotrod Package
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Description

The TPS61089x represents the TPS61089 and the TPS610891. The TPS61089x is a fully-integrated synchronous boost converter with a 19-mΩ main power switch and a 27-mΩ rectifier switch. The device provides a high efficiency and small size power solution for portable equipment. The TPS61089x features wide input voltage range from 2.7 V to 12 V to support applications powered with single cell or two cell Lithium ion/polymer batteries. The TPS61089x has 7-A continuous switch current capability and provides output voltage up to 12.6 V.

The TPS61089x uses adaptive constant off-time peak current control topology to regulate the output voltage. In moderate to heavy load condition, the TPS61089x works in the pulse width modulation (PWM) mode. In light load condition, the TPS61089 works in the pulse frequency modulation (PFM) mode to improve the efficiency, while the TPS610891 still works in the PWM mode to avoid application problems caused by low switching frequency. The switching frequency in the PWM mode is adjustable from 200 kHz to 2.2 MHz. The TPS61089x also implements a built-in 4-ms soft start function and an adjustable peak switch current limit function. In addition, the device provides 13.2-V output overvoltage protection, cycle-by-cycle overcurrent protection, and thermal shutdown protection.

The TPS61089x is available in an extremely compact size of a 2.0-mm × 2.5-mm 11-pin VQFN package.

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Technical documentation

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The TPS61089 is a fully-integrated synchronous boost converter with a 19-mΩ main power switch and a 27-mΩ rectifier switch. The device provides a high efficiency and small size power solution for portable equipment. The TPS61089 features wide input voltage range from 2.7 V to 12 V to support (...)

Features

  • 2.7-12V Input voltage range
  • Up to 90% Efficiency at VIN = 3.3 V, VOUT = 9 V,and IOUT = 2 A
  • Resistor-Programmable Peak Current Limit up to 7 A
  • Adjustable Switching Frequency: 200 kHz to 2.2 MHz
  • Internal Output Overvoltage Protection at 13.2 V

Design tools & simulation

SIMULATION MODELS Download
SLVMBK5.ZIP (125 KB) - PSpice Model
SIMULATION MODELS Download
SLVMBK5B.ZIP (108 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
Energy harvesting from single cell solar panel for li-ion battery reference design
TIDA-050039 — The TIDA-050039 reference design demonstrates how to use a fully-integrated synchronous boost converter TPS61089 in combination with a single-cell solar panel to charge a li-ion battery. An additional maximum power-point (MPP) sampling network is implemented to dynamically control the input voltage (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Backlight and LCD Bias Reference Design for 90-Hz Refresh-Rate Virtual/Augmented Reality Displays
TIDA-01635 — This reference design describes the power solution for LCD displays in wearable devices, especially in augmented-reality (AR) and virtual reality (VR) headsets. The high current accuracy backlight driver is achieved by LP8556, which provides high current during small duty cycle synchronized with (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Backup Power Reference Design for Smart Meters and Data Concentrators with GPRS
PMP9802 — The reference design describes a power management solution for data concentrators and smart meters that require both super capacitor and battery as backup power. The designed circuit implements uninterrupted power supply to drive GPRS module and other system loads by switching among the power grid (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VQFN-HR (RNR) 11 View options

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