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TPS61390 Series

85-VOUT boost converter with current mirror and sample and hold

Manufacturer: Texas Instruments

Catalog(1 parts)

PartVoltage - Input (Min)FunctionVoltage - Output (Max)Voltage - Input (Max)Output ConfigurationSupplier Device PackageMounting TypeFrequency - SwitchingVoltage - Output (Min/Fixed)Synchronous RectifierTopologyPackage / CaseNumber of OutputsOperating TemperatureOperating TemperatureOutput Type
Texas Instruments
TPS61390RTER
Boost Switching Regulator IC Positive Adjustable 20V 1 Output 16-WFQFN Exposed Pad
2.5 V
Step-Up
85 V
5.5 V
Positive
16-WQFN (3x3)
Surface Mount
700000 Hz
20 V
Boost
16-WFQFN Exposed Pad
1 ul
125 °C
-40 °C
Adjustable

Key Features

Input voltage range: 2.5 V to 5.5 VOutput voltage range: up to 85 VR(DS)onof switching FET: 0.9 ΩSwitch current limit: 1000 mASample window with minimum 400-nsHigh optical power protection with 0.5-µs response timeSwitching frequency: 700 kHzQuiescent current: 110 µA from VIN, 340 µA from VOUT, 140 µA from AVCCSoft-start time: 4.8 msPackage: 3 mm × 3 mm × 0.75 mm QFNInput voltage range: 2.5 V to 5.5 VOutput voltage range: up to 85 VR(DS)onof switching FET: 0.9 ΩSwitch current limit: 1000 mASample window with minimum 400-nsHigh optical power protection with 0.5-µs response timeSwitching frequency: 700 kHzQuiescent current: 110 µA from VIN, 340 µA from VOUT, 140 µA from AVCCSoft-start time: 4.8 msPackage: 3 mm × 3 mm × 0.75 mm QFN

Description

AI
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.