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TPS43335-Q1

ACTIVE

Automotive 2V to 40V low Iq single boost & dual synchronous buck controller

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Data sheet

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LM5127-Q1 ACTIVE 42V wide-Vin triple buck and boost controller for automotive applications Updated improved version of TPS43335-Q1

TPS43335-Q1

ACTIVE
Data sheet Order now

Product details

Processor supplier Generic Processor name Generic Regulated outputs (#) 3 Step-down DC/DC converter 0 Step-up DC/DC converter 0 LDO 0 Vin (min) (V) 2 Vin (max) (V) 40 Vout (min) (V) 0.9 Vout (max) (V) 11 Iout (max) (A) 3 Configurability Factory programmable, Hardware configurable Features Enable, Overcurrent protection, Power good, Synchronous rectification, Thermal shutdown, UVLO fixed Rating Automotive Operating temperature range (°C) -40 to 125 Step-down DC/DC controller 2 Step-up DC/DC controller 1 Iq (typ) (mA) 0.03 Switching frequency (max) (kHz) 600 Shutdown current (ISD) (typ) (µA) 3 Product type Microcontrollers
Processor supplier Generic Processor name Generic Regulated outputs (#) 3 Step-down DC/DC converter 0 Step-up DC/DC converter 0 LDO 0 Vin (min) (V) 2 Vin (max) (V) 40 Vout (min) (V) 0.9 Vout (max) (V) 11 Iout (max) (A) 3 Configurability Factory programmable, Hardware configurable Features Enable, Overcurrent protection, Power good, Synchronous rectification, Thermal shutdown, UVLO fixed Rating Automotive Operating temperature range (°C) -40 to 125 Step-down DC/DC controller 2 Step-up DC/DC controller 1 Iq (typ) (mA) 0.03 Switching frequency (max) (kHz) 600 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 Test Guidance With the Following
    Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C2
  • 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 (TPS43336-Q1)
  • 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 0.7 A
  • Thermally Enhanced 38-Pin HTSSOP (DAP)
    PowerPAD™ Package
  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance With the Following
    Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C2
  • 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 (TPS43336-Q1)
  • 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 0.7 A
  • Thermally Enhanced 38-Pin HTSSOP (DAP)
    PowerPAD™ Package

The TPS43335-Q1 and TPS43336-Q1 include two current-mode synchronous buck controllers and a voltage-mode boost controller. The devices are 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, one can enable the buck controllers 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. One can program the switching frequency over 150 kHz to 600 kHz or synchronize it to an external clock in the same range. Additionally, the TPS43336-Q1 offers frequency-hopping spread-spectrum operation.

The TPS43335-Q1 and TPS43336-Q1 include two current-mode synchronous buck controllers and a voltage-mode boost controller. The devices are 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, one can enable the buck controllers 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. One can program the switching frequency over 150 kHz to 600 kHz or synchronize it to an external clock in the same range. Additionally, the TPS43336-Q1 offers frequency-hopping spread-spectrum operation.
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Type Title Date
* Data sheet TPS4333x-Q1 Low-IQ, Single-Boost, Dual Synchronous-Buck Controller datasheet (Rev. E) PDF | HTML 31 Dec 2015
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 TPS43335-Q1 PSpice Transient Model Package (Rev. B)

SLVM800B.ZIP (234 KB) - PSpice Model
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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
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HTSSOP (DAP) 38 Ultra Librarian
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