2.25MHz, 1A Step-Down Converter in 2 x 2 SON Package - TPS62590

TPS62590 (ACTIVE)

2.25MHz, 1A Step-Down Converter in 2 x 2 SON Package

Parametrics Evaluate all products in Step-Down (Buck) Converter

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Regulated Outputs (#) 1
Vin (Min) (V) 2.5
Vin (Max) (V) 5.5
Vout (Min) (V) 0.75
Vout (Max) (V) 5.5
Iout (Max) (A) 1
Iout2 (Max) (A) -
Vout2 (Min) (V) -
Vout2 (Max) (V) -
Topology Buck
  • Boost
  • Buck
  • Buck-Boost
  • Inverting Buck-Boost
Switching Frequency (Max) (kHz) 2500
Switch Current Limit (Typ) (A) 1.4
Iq (Typ) (mA) 0.015
Duty Cycle (Max) (%) 100
Soft Start Fixed
  • Adjustable
  • Fixed
  • None
Compensation Internal
  • External
  • Internal
  • Not Needed
Special Features Enable
Light Load Efficiency
Synchronous Rectification
  • Adjustable Current Limit
  • Adjustable UVLO
  • Dynamic Voltage Scaling
  • Enable
  • Frequency Synchronization
  • Light Load Efficiency
  • Phase Interleaving
  • Power Good
  • Synchronous Rectification
  • Tracking
Control Mode Voltage Mode
  • COT with emulated ripple
  • Constant on-time (COT)
  • Current Mode
  • D-CAP
  • D-CAP+
  • D-CAP2
  • D-CAP3
  • Voltage Mode
Preset Vout (V) -
Vref Accuracy (Typ) (%) 2.5
Rating Catalog
  • Automotive
  • Catalog
  • HiRel Enhanced Product
  • High Temp
  • Military
  • Space
Operating Temperature Range (C) -40 to 85 °C to °C
Approx. Price (US$) 0.79 | 1ku
Package Group SON
  • CFP
  • DDPAK/TO-263
  • DSBGA
  • DSLGA
  • HTSSOP
  • LQFN-CLIP
  • LSON-CLIP
  • MSOP-PowerPAD
  • PDIP
  • QFN
  • SO PowerPAD
  • SOIC
  • SON
  • SOT
  • SOT-23
  • TO-220
  • TO-263
  • TSSOP
  • USON
  • VQFN
  • VQFN-CLIP
  • VSON
  • VSSOP
  • WQFN
  • WSON
  • XCEPT
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Other qualified versions of TPS62590

Version Part Number Definition
Automotive TPS62590-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects

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Companion parts

Part # Name Product Family Comments
ADS4149   14 bit 250MSPS Low Power ADC   ANALOG TO DIGITAL CONVERTER - HIGH SPEED ADC (>10MSPS)    The ADS4149 14-bit, 250MSPS ADC power supply solution can be designed using the TPS62590 1000mA, 2.25MHz Step-Down Converter. The resulting efficiency in the step down from 3.3V source to the 1.8V supply required by the ADC is ~91%, with only 0.3dB SNR degradation in ADC performance at high IF, compared to an LDO based power design. An LDO, with an expected efficiency of only 55%, is therefore not required to source this high performance ADC. For further enhanced performance check also TPS62293  
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