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TLV61047-Q1

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20VIN, 28VOUT, 2.2A non-synchronous boost converter

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Data sheet

TLV61047-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Topology Boost Vin (max) (V) 20 Vin (min) (V) 1.8 Vout (max) (V) 28 Vout (min) (V) 4.5 Switch current limit (typ) (A) 2.2 Features Enable, Fixed soft start, Light-load efficiency, Nonsynchronous rectification Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000025 Duty cycle (max) (%) 92
Rating Automotive Topology Boost Vin (max) (V) 20 Vin (min) (V) 1.8 Vout (max) (V) 28 Vout (min) (V) 4.5 Switch current limit (typ) (A) 2.2 Features Enable, Fixed soft start, Light-load efficiency, Nonsynchronous rectification Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000025 Duty cycle (max) (%) 92
SOT-23-THN (DDC) 5 8.12 mm² 2.9 x 2.8
  • AEC-Q100 qualified:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
  • Functional Safety-Capable
  • Input voltage range: 1.8V to 20V
  • Output voltage range: 4.5V to 28V
  • Integrated low-side FET: 200mΩ
  • High efficiency
    • Up to 89.7% efficiency at VIN = 5V to VOUT = 12V, and IOUT = 0.25A
    • Up to 90.4% efficiency at VIN = 12V to VOUT = 28V, and IOUT = 0.35A
  • Peak switch current limit: 2.2A
  • Switching frequency: 2.4MHz
  • Reference voltage accuracy: ±2.0%
  • Typical quiescent current: 25µA
  • Typical shutdown current: 0.4µA
  • PFM operation mode at light load
  • Internal compensation
  • Internal soft start time: 2.5ms
  • Cycle-by-cycle current limit
  • Thermal shutdown protection
  • SOT-23-5 DDC package
  • AEC-Q100 qualified:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
  • Functional Safety-Capable
  • Input voltage range: 1.8V to 20V
  • Output voltage range: 4.5V to 28V
  • Integrated low-side FET: 200mΩ
  • High efficiency
    • Up to 89.7% efficiency at VIN = 5V to VOUT = 12V, and IOUT = 0.25A
    • Up to 90.4% efficiency at VIN = 12V to VOUT = 28V, and IOUT = 0.35A
  • Peak switch current limit: 2.2A
  • Switching frequency: 2.4MHz
  • Reference voltage accuracy: ±2.0%
  • Typical quiescent current: 25µA
  • Typical shutdown current: 0.4µA
  • PFM operation mode at light load
  • Internal compensation
  • Internal soft start time: 2.5ms
  • Cycle-by-cycle current limit
  • Thermal shutdown protection
  • SOT-23-5 DDC package

The TLV61047-Q1 is a high-voltage, non-synchronous boost converter that integrates a 200mΩ low side power switch to provide an easy use and small size power design. The TLV61047-Q1 has a wide input voltage range from 1.8V to 20V and output voltage covers up to 28V with 2.2A switch current capability.

The TLV61047-Q1 uses adaptive constant off-time peak current control topology to regulate the output voltage. At heavy to light load condition, the TLV61047-Q1 works in pulse width modulation (PWM) mode until trigger the minimum peak current (typical 300mA). At lighter load condition , the devices work in pulse frequency modulation (PFM) mode to improve the efficiency and ripple performance.

The quasi-constant switching frequency is internally set to 2.4MHz, allowing the use of extremely small surface mount inductor and capacitors. The TLV61047-Q1 has built in 2.5ms soft start to minimize the inrush current during start-up. Additional features include internal compensation, cycle-by-cycle current limit, and thermal shutdown.

The TLV61047-Q1 is available in an SOT-23-5 DDC package.

The TLV61047-Q1 is a high-voltage, non-synchronous boost converter that integrates a 200mΩ low side power switch to provide an easy use and small size power design. The TLV61047-Q1 has a wide input voltage range from 1.8V to 20V and output voltage covers up to 28V with 2.2A switch current capability.

The TLV61047-Q1 uses adaptive constant off-time peak current control topology to regulate the output voltage. At heavy to light load condition, the TLV61047-Q1 works in pulse width modulation (PWM) mode until trigger the minimum peak current (typical 300mA). At lighter load condition , the devices work in pulse frequency modulation (PFM) mode to improve the efficiency and ripple performance.

The quasi-constant switching frequency is internally set to 2.4MHz, allowing the use of extremely small surface mount inductor and capacitors. The TLV61047-Q1 has built in 2.5ms soft start to minimize the inrush current during start-up. Additional features include internal compensation, cycle-by-cycle current limit, and thermal shutdown.

The TLV61047-Q1 is available in an SOT-23-5 DDC package.
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Technical documentation

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* Data sheet TLV61047-Q1 Automotive 20VIN , 28VOUT , 2.2A Non-synchronous Boost Converter datasheet PDF | HTML 10 Mar 2026
Functional safety information TLV61047-Q1 and TLV61040-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 25 Feb 2026
EVM User's guide TLV61047QEVM-165 Evaluation Module PDF | HTML 06 Jan 2026

Design & development

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Evaluation board

TLV61047QEVM-165 — TLV61047-Q1 evaluation module

The TLV61047-Q1 is a non-synchronous boost converter with 2.2A peak switching current capability. This EVM is designed with 2V to 9V input voltage and 12V output voltage applications. The feedback divider can be modified for other application conditions, according to the data sheet.

User guide: PDF | HTML
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Simulation model

TLV61047-Q1 PSpice Transient Model

SLVMEV4.ZIP (111 KB) - PSpice Model
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SOT-23-THN (DDC) 5 Ultra Librarian
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