TPS62802 1-A Ultra-low Iq Step-down Converter | TI.com

TPS62802 (ACTIVE)

1-A Ultra-low Iq Step-down Converter

1-A Ultra-low Iq Step-down Converter - TPS62802
 

Description

The TPS6280x device family is a step down converter with 2.3-µA typical quiescent current featuring highest efficiency and smallest solution size. TI’s DCS-Control™ topology enables the device to operate with tiny inductors and capacitors with a switching frequency up to 4MHz. At light load conditions, it seamlessly enters Power Save Mode to reduce switching cycles and maintaining high efficiency.

Connecting the VSEL/MODE pin to GND selects a fixed output voltage. With only one external resistor connected to VSEL/MODE pin, 16 internally set output voltages can be selected. An integrated R2D (resistor to digital) converter reads out the external resistor and sets the output voltage. The same device part number can be used for different applications and voltage rails just by changing a single resistor. Furthermore, the internally set output voltage provides better accuracy compared to a traditional external resistor divider network. Once the device has started up, the DC/DC converter enters Forced PWM Mode by applying a high level at the VSEL/MODE pin. In this operating mode, the device runs at a typical 4-MHz or 1.5-MHz switching frequency, enabling lowest output voltage ripple and highest efficiency. The TPS6280x device series comes in a tiny 6-pin WCSP package with 0.35-mm pitch.

Features

  • Input Voltage Range from 1.8 V to 5.5 V
  • 2.3-µA Operating Quiescent Current
  • Up to 4MHz Switching Frequency
  • Output Current 0.6 A / 1 A
  • 1% Output Voltage Accuracy
  • Selectable Power Save / Forced PWM Mode
  • R2D converter for flexible VOUT setting
  • 16 Selectable + 1 Fixed Output Voltages
    • TPS62801 (4MHz): 0.8 V to 1.55 V
    • TPS62802 (4MHz): 1.8 V to 3.3 V
    • TPS62806 (1.5MHz): 0.4 V to 0.775 V
  • Smart Enable Pin
  • Optimized Pinout to Support 0201 Components
  • DCS-Control™ Topology™
  • Output Discharge
  • 100% Duty Cycle Operation
  • Tiny 6-pin, 0.35 mm Pitch WCSP package
  • Supports < 0.6 mm Solution Height
  • Supports < 5mm2 Solution Size
  • Create a Custom Design Using the TPS62801 With the WEBENCH® Power Designer
  • Create a Custom Design Using the TPS62802 With the WEBENCH® Power Designer
  • Create a Custom Design Using the TPS62806 With the WEBENCH® Power Designer

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Parametrics Compare all products in Buck Converter (Integrated Switch)

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Regulated Outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Features
Control Mode
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Rating
Package Group
TPS62802 TLV62569 TPS62085 TPS62088 TPS62136 TPS62480 TPS62801 TPS62806 TPS62823 TPS62825 TPS62826
1.8     2.5     2.5     2.4     3     2.4     1.8     1.8     2.4     2.4     2.4    
5.5     5.5     6     5.5     17     5.5     5.5     5.5     5.5     5.5     5.5    
1.8     0.6     0.8     0.6     0.8     0.6     0.8     0.4     0.6     0.6     0.6    
3.3     5.5     6     4     12     5.5     1.55     0.775     4     4     4    
1     2     3     3     4     6     1     0.6     3     2     3    
1     1     1     1     1     1     1     1     1     1     1    
4000     1500     2400     4000     1000     2000     4000     1500     2200     2200     2200    
4000     1500     2400     4000     1000     2500     4000     1500     2200     2200     2200    
0.0023     0.035     0.017     0.004     0.018     0.023     0.0023     0.0023     0.004     0.004     0.004    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Load Disconnect
Output Discharge
Over Current Protection
Synchronous Rectification
UVLO Fixed    
Enable
Light Load Efficiency
Power Good
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
Over Current Protection
Power Good
Synchronous Rectification    
Dynamic Voltage Scaling
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Output Discharge
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking
UVLO Fixed
VID: 2-bit    
Dynamic Voltage Scaling
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Output Discharge
Over Current Protection
Phase Interleaving
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking
UVLO Fixed
Voltage Margining    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Load Disconnect
Output Discharge
Over Current Protection
Synchronous Rectification
UVLO Fixed    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Load Disconnect
Output Discharge
Over Current Protection
Synchronous Rectification
UVLO Fixed    
Enable
Light Load Efficiency
Output Discharge
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Fixed    
DCS-Control     Current Mode     Constant on-time (COT)
DCS-Control    
Constant on-time (COT)
DCS-Control    
Constant on-time (COT)
DCS-Control    
Current Mode     Constant on-time (COT)
DCS-Control    
DCS-Control     Constant on-time (COT)
DCS-Control    
Constant on-time (COT)
DCS-Control    
Constant on-time (COT)
DCS-Control    
100     100     100     100     100     100     100     100     100     100