Product details

Vin (Min) (V) 2.5 Vin (Max) (V) 5.5 Vout (Min) (V) 2.5 Vout (Max) (V) 84 Switch current limit (Typ) (A) 1 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 600 Switching frequency (Max) (kHz) 800 Iq (Typ) (mA) 0.5 Features Enable, UVLO Fixed Duty cycle (Max) (%) 99 Operating temperature range (C) -40 to 125 Rating Catalog
Vin (Min) (V) 2.5 Vin (Max) (V) 5.5 Vout (Min) (V) 2.5 Vout (Max) (V) 84 Switch current limit (Typ) (A) 1 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 600 Switching frequency (Max) (kHz) 800 Iq (Typ) (mA) 0.5 Features Enable, UVLO Fixed Duty cycle (Max) (%) 99 Operating temperature range (C) -40 to 125 Rating Catalog
WQFN (RTE) 16 9 mm² 3 x 3
  • Input voltage range: 2.5 V to 5.5 V
  • Output voltage range: up to 85 V
  • R(DS)on of switching FET: 0.9 Ω
  • Switch current limit: 1000 mA
  • Sample window with minimum 400-ns
  • High optical power protection with 0.5-µs response time
  • Switching frequency: 700 kHz
  • Quiescent current: 110 µA from VIN, 340 µA from VOUT, 140 µA from AVCC
  • Soft-start time: 4.8 ms
  • Package: 3 mm × 3 mm × 0.75 mm QFN
  • Input voltage range: 2.5 V to 5.5 V
  • Output voltage range: up to 85 V
  • R(DS)on of switching FET: 0.9 Ω
  • Switch current limit: 1000 mA
  • Sample window with minimum 400-ns
  • High optical power protection with 0.5-µs response time
  • Switching frequency: 700 kHz
  • Quiescent current: 110 µA from VIN, 340 µA from VOUT, 140 µA from AVCC
  • Soft-start time: 4.8 ms
  • Package: 3 mm × 3 mm × 0.75 mm QFN

The TPS61390 is a 700-kHz pulse-width modulating (PWM) step-up converter with an 85-V switch FET with an input ranging from 2.5 V to 5.5 V. The switching peak current is up to 1000 mA. The TPS61390 includes accurate current mirror with two gain options selectable (1 : 5 or 4 : 5).

Additionally, the TPS61390 integrates a sample-and-hold circuitry for the burst-mode optical receiver applications to capture the current flowing through the APD and pass the current to an external ADC. The device supports fast response time during the transition between strong and weak optical density. The TPS61390 also provides high optical-power protection with an additional FET in series with the APD power path with the typical response time of 0.5 µs . It can recover automatically once the high optical releasing.

The TPS61390 is available in 3 mm × 3 mm QFN package with exposed pad underneath.

The TPS61390 is a 700-kHz pulse-width modulating (PWM) step-up converter with an 85-V switch FET with an input ranging from 2.5 V to 5.5 V. The switching peak current is up to 1000 mA. The TPS61390 includes accurate current mirror with two gain options selectable (1 : 5 or 4 : 5).

Additionally, the TPS61390 integrates a sample-and-hold circuitry for the burst-mode optical receiver applications to capture the current flowing through the APD and pass the current to an external ADC. The device supports fast response time during the transition between strong and weak optical density. The TPS61390 also provides high optical-power protection with an additional FET in series with the APD power path with the typical response time of 0.5 µs . It can recover automatically once the high optical releasing.

The TPS61390 is available in 3 mm × 3 mm QFN package with exposed pad underneath.

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Technical documentation

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Type Title Date
* Data sheet TPS61390 85-VOUT Boost Converter With Current Mirror and Sample / Hold datasheet (Rev. B) 09 Oct 2019
White paper Enabling Higher Data Rates for Optical Modules With Small and Efficient Power 22 Mar 2021
Certificate TPS61390EVM-020 EU Declaration of Conformity (DoC) 20 Apr 2020
Application note How to Sample the Small APD Current Precisely With TPS61390 Boost Converter 20 Dec 2019
Application note TPS61390 Boost Converter With Low APD Bias Voltage Ripple 13 Dec 2019
User guide TPS61390EVM-020 Evaluation Module 02 Apr 2018

Design & development

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Evaluation board

TPS61390EVM-020 — Boost converter evaluation module for TPS61390

The TPS61390 is a step-up converter with the current mirror and sample / hold circuitry being integrated, which is designed for biasing and monitoring the avalanche photodiodes (APD) in the optical receivers. The TPS61390 supports up to 85-V output from an input ranging from 2.5 V to 5.5 V. The (...)
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TPS61390 Design Tool

SLVC800.ZIP (335 KB)
Simulation model

TPS61390 UNENCRYPTED PSPICE TRANSIENT MODEL

SLVMD43.ZIP (82 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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WQFN (RTE) 16 View options

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