TPS62806 (ACTIVE)

600-mA, Ultra-Low IQ Step-Down Converter

600-mA, Ultra-Low IQ Step-Down Converter - TPS62806
 

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 up to a 4 MHz/1.5MHz switching frequency. 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 1.2-V 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 typically 4-MHz / 1.5-MHz switch frequency enabling lowest output voltage ripple. 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 4 MHz / 1.5 MHz Switching Frequency
  • Output Current 0.6A / 1.0 A
  • 1% Output Voltage Accuracy
  • Selectable Power Save / Forced PWM Mode
  • R2D converter for flexible VOUT setting
  • 16 Selectable + 1 Fixed Output Voltages
    • TPS62801: 0.8V to 1.55V in 50mV steps
    • TPS62802: 1.8V to 3.3V in 100mV steps
    • TPS62806: 0.4V to 0.775V in 25mV steps
  • 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

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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)
Package Group
TPS62806 TLV62569 TPS62085 TPS62088 TPS62136 TPS62480 TPS62801 TPS62802 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   
0.4    0.6    0.8    0.6    0.8    0.6    0.8    1.8    0.6    0.6    0.6   
0.775    5.5    6    4    12    5.5    1.55    3.3    4    4    4   
0.6    2    3    3    4    6    1    1    3    2    3   
1    1    1    1    1    1    1    1    1    1    1   
1500    1500    2400    4000    1000    2000    4000    4000    2200    2200    2200   
1500    1500    2400    4000    1000    2500    4000    4000    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    100   
-40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125   
DSBGA    SOT-23
SOT-23-THIN
SOT-5X3   
VSON-HR    DSBGA    VQFN-HR    VQFN-HR    DSBGA    DSBGA    VSON-HR    VSON-HR    VSON-HR   

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WEBENCH® Designer TPS62806

  Min   Max Range
Vin  V 1.8 to 5.5V
Vout  V 0.4 to 0.775V
Iout  A ≤ 0.6A
Ambient Temp  °C -40 to 125°C


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