TPS43332-Q1

ACTIVE

Automotive 2V to 40V Single Boost & Dual Synchronous Buck Controller with Freq. Spread Spectrum

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LM5127-Q1 ACTIVE 42V wide-Vin triple buck and boost controller for automotive applications Updated improved version of TPS43332-Q1

Product details

Regulated outputs (#) 3 Vin (min) (V) 2 Vin (max) (V) 40 Vout (min) (V) 0.9 Vout (max) (V) 11 Iout (max) (A) 6 Features Enable, Overcurrent protection, Power good, Synchronous rectification, Thermal shutdown, UVLO fixed Step-up DC/DC converter 0 Step-down DC/DC converter 0 Step-down DC/DC controller 2 Step-up DC/DC controller 1 LDO 0 Iq (typ) (mA) 0.03 Rating Automotive Switching frequency (max) (kHz) 600 Operating temperature range (°C) -40 to 125 Processor supplier Generic Processor name Generic Shutdown current (ISD) (typ) (µA) 3 Product type Microcontrollers
Regulated outputs (#) 3 Vin (min) (V) 2 Vin (max) (V) 40 Vout (min) (V) 0.9 Vout (max) (V) 11 Iout (max) (A) 6 Features Enable, Overcurrent protection, Power good, Synchronous rectification, Thermal shutdown, UVLO fixed Step-up DC/DC converter 0 Step-down DC/DC converter 0 Step-down DC/DC controller 2 Step-up DC/DC controller 1 LDO 0 Iq (typ) (mA) 0.03 Rating Automotive Switching frequency (max) (kHz) 600 Operating temperature range (°C) -40 to 125 Processor supplier Generic Processor name Generic Shutdown current (ISD) (typ) (µA) 3 Product type Microcontrollers
HTSSOP (DAP) 38 101.25 mm² 12.5 x 8.1
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Two Synchronous Buck Controllers
  • One Pre-Boost Controller
  • Input Range up to 40 V, (Transients up to 60 V),
    Operation Down to 2 V When Boost is Enabled
  • Low-Power-Mode IQ: 30 µA (One Buck On), 35 µA
    (Two Bucks On)
  • Low Shutdown Current Ish < 4 µA
  • Buck Output Range 0.9 V to 11 V
  • Boost Output Selectable: 7 V, 10 V, or 11 V
  • Programmable Frequency and External Synchronization Range
    150 kHz to 600 kHz
  • Separate Enable Inputs (ENA, ENB)
  • Frequency Spread Spectrum (TPS43332)
  • Selectable Forced Continuous Mode or Automatic Low-Power
    Mode at Light Loads
  • Sense Resistor or Inductor DCR Sensing
  • Out-of-Phase Switching Between Buck Channels
  • Peak Gate-Drive Current 1.5 A
  • Thermally Enhanced 38-Pin HTSSOP (DAP) PowerPAD™
    Package
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Two Synchronous Buck Controllers
  • One Pre-Boost Controller
  • Input Range up to 40 V, (Transients up to 60 V),
    Operation Down to 2 V When Boost is Enabled
  • Low-Power-Mode IQ: 30 µA (One Buck On), 35 µA
    (Two Bucks On)
  • Low Shutdown Current Ish < 4 µA
  • Buck Output Range 0.9 V to 11 V
  • Boost Output Selectable: 7 V, 10 V, or 11 V
  • Programmable Frequency and External Synchronization Range
    150 kHz to 600 kHz
  • Separate Enable Inputs (ENA, ENB)
  • Frequency Spread Spectrum (TPS43332)
  • Selectable Forced Continuous Mode or Automatic Low-Power
    Mode at Light Loads
  • Sense Resistor or Inductor DCR Sensing
  • Out-of-Phase Switching Between Buck Channels
  • Peak Gate-Drive Current 1.5 A
  • Thermally Enhanced 38-Pin HTSSOP (DAP) PowerPAD™
    Package

The TPS43330-Q1 and TPS43332-Q1 devices (TPS4333x-Q1) include two current-mode synchronous buck controllers and a voltage-mode boost controller. The TPS4333x-Q1 family of devices is ideally suited as a pre-regulator stage with low IQ requirements and for applications that must survive supply drops due to cranking events. The integrated boost controller allows the devices to operate down to 2 V at the input without seeing a drop on the buck regulator output stages. At light loads, the buck controllers can be enabled to operate automatically in low-power mode, consuming just 30 µA of quiescent current.

The buck controllers have independent soft-start capability and power-good indicators. Current foldback in the buck controllers and cycle-by-cycle current limitation in the boost controller provide external MOSFET protection. The switching frequency can be programed over 150 kHz to 600 kHz or synchronized to an external clock in the same range. Additionally, the TPS43332-Q1 device offers frequency-hopping spread-spectrum operation.

The TPS43330-Q1 and TPS43332-Q1 devices (TPS4333x-Q1) include two current-mode synchronous buck controllers and a voltage-mode boost controller. The TPS4333x-Q1 family of devices is ideally suited as a pre-regulator stage with low IQ requirements and for applications that must survive supply drops due to cranking events. The integrated boost controller allows the devices to operate down to 2 V at the input without seeing a drop on the buck regulator output stages. At light loads, the buck controllers can be enabled to operate automatically in low-power mode, consuming just 30 µA of quiescent current.

The buck controllers have independent soft-start capability and power-good indicators. Current foldback in the buck controllers and cycle-by-cycle current limitation in the boost controller provide external MOSFET protection. The switching frequency can be programed over 150 kHz to 600 kHz or synchronized to an external clock in the same range. Additionally, the TPS43332-Q1 device offers frequency-hopping spread-spectrum operation.

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Technical documentation

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Type Title Date
* Data sheet TPS4333x-Q1 Low IQ, Single Boost, Dual Synchronous Buck Controller datasheet (Rev. F) PDF | HTML 23 Dec 2014
Design guide TPS4333x-Q1 / TPS4335x-Q1 Design Checklist 28 Oct 2013
User guide TPS4333xEVM 01 Apr 2011

Design & development

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

Simulation model

Unencrypted TPS43332-Q1 PSpice Transient Model Package (Rev. B)

SLVM791B.ZIP (234 KB) - PSpice Model
Calculation tool

SLVC528 TPS4333x-Q1, TPS4335x-Q1 Switching-Mode Power-Supply Component Calculation Tool

Supported products & hardware

Supported products & hardware

Products
Multi-channel ICs (PMICs)
TPS43330A-Q1 Automotive 2V to 40V Low Iq Single Boost & Dual Synchronous Buck Controller TPS43332-Q1 Automotive 2V to 40V Single Boost & Dual Synchronous Buck Controller with Freq. Spread Spectrum TPS43333-Q1 Automotive 2V to 40V Low Iq Single Boost & Dual Synchronous Buck Controller TPS43335-Q1 Automotive 2V to 40V low Iq single boost & dual synchronous buck controller TPS43336-Q1 Automotive 2V to 40V Single Boost & Dual Synchronous Buck Controller with Freq. Spread Spectrum TPS43337-Q1 Automotive 2V to 40V Low Iq Single Boost & Dual Fixed Output Voltage Synchronous Buck Controller TPS43350-Q1 40V Dual Synchronous Buck Controller TPS43351-Q1 40V Dual Synchronous Buck Controller with Frequency Spread Spectrum
Package Pins CAD symbols, footprints & 3D models
HTSSOP (DAP) 38 Ultra Librarian

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