The TPS61379-Q1 is a 25μA quiescent current synchronous boost converter

The TPS61379-Q1 is a fully integrated ADS7805PB synchronous boost converter with integrated load disconnect. The input voltage range is 2.3 V to 14 V, while the maximum output voltage is up to 18.5 V. Switch current is limited to 2 A (typ). It consumes 25µA of quiescent current from V IN.

The TPS61379-Q1 uses peak current mode control, and the switching frequency is programmable from 200 kHz to 2.2 MHz. The device operates in fixed frequency PWM operation at moderate to heavy loads. By configuring the MODE pin, there are two selectable modes at light load: automatic PFM mode and forced PWM to balance efficiency and noise immunity at light load. The switching frequency can be synchronized with an external clock. The TPS61379-Q1 uses the spread spectrum of the internal clock to be more EMI friendly in FPWM mode. Additionally, there is an internal soft-start time to limit inrush current.

The TPS61379-Q1 is available in several fixed output voltage versions to save on external feedback resistors. It supports external loop compensation, so stability and transient response can be optimized over a wider V OUT /V IN range. It also integrates robust protection features, including output short-circuit protection, output overvoltage protection, and thermal shutdown protection. The TPS61379-Q1 is available in a 3mm × 3mm 16-pin QFN package with wettable sides.


●AEC-Q100 qualified for automotive applications

— Device Temperature Grade 1: –40°C to 125°C ambient operating temperature range

●Functional safety

— Documentation that can be used to assist in the design of functional safety systems

●Flexible input and output operating range

— Input voltage range: 2.3 V to 14 V

—Programmable output voltage range: 4.0 V to 18.5 V

—5V, 5.25V, 5.5V fixed output options

—Fixed 2A peak current limit

●Avoid AM band interference and crosstalk

— Dynamically programmable switching frequency: 200 kHz to 2.2 MHz

- Spread Spectrum FM

- Optional clock synchronization

● Minimize solution size for space-constrained applications

— Integrated LS/HS/ISO FET: R DS(ON) 50 mΩ/50 mΩ/100 mΩ

— Supports small LCs up to 2.2 MHz

● Minimize light load and idle state current consumption

—25μA quiescent current into VIN pin

—0.5μA shutdown current into VIN pin

—Selectable Auto PFM and Forced PWM modes

- True load disconnection in case of shutdown or failure

●Integrated protection function

— Supports VIN close to VOUT operation

- Input undervoltage lockout and output overvoltage protection

- Hiccup output short circuit protection

— Power good indicator

Thermal Shutdown Protection at —165°C

●Higher than 90% conversion efficiency from 3.3V to 9V at 0.25A load


Vin (Min) (V): 2.3

Vin (max) (V): 14

Vout (Min) (V): 4

Output Voltage (Max) (V): 18.5

Switch Current Limit (Typ) (A): 2

Adjust output (#): 1

Switching Frequency (Min) (kHz): 200

Switching Frequency (Max) (kHz): 2200

Iq (typ) (mA): 0.025

Features: Adjustable Current Limit, Enable, Frequency Synchronization, Light Load Efficiency, Load Disconnect, Power Good, Spread Spectrum, Synchronous Rectification, UVLO Fixed

Duty Cycle (Max) (%): 90

Operating Temperature Range (C): -40 to 125