TPS62801 1.8V-5.5V input, tiny, 1A ultra-low Iq step-down converter in 1.05 x 0.70mm chip scale package | TI.com

TPS62801 (ACTIVE) 1.8V-5.5V input, tiny, 1A ultra-low Iq step-down converter in 1.05 x 0.70mm chip scale package

 

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 maintain 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 4 MHz 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
    • TPS62800 (4 MHz): 0.4 V to 0.775 V
    • TPS62801 (4 MHz): 0.8 V to 1.55 V
    • TPS62802 (4 MHz): 1.8 V to 3.3 V
    • TPS62806 (1.5 MHz): 0.4 V to 0.775 V
    • TPS62807 (1.5 MHz): 0.8 V to 1.55 V
    • TPS62808 (1.5 MHz): 1.8 V to 3.3 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 < 5 mm2 Solution Size

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WEBENCH® Designer TPS62801

  Min   Max Range
Vin  V 1.8 to 5.5V
Vout  V 0.8 to 1.55V
Iout  A ≤ 1A
Ambient Temp  °C -40 to 125°C

Parametrics

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Part number Order 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 Type Package size: mm2:W x L (PKG)
TPS62801 Order now 1.8     5.5     0.8     1.55     1     1     4000     4000     0.0023     Enable
Forced PWM
Light Load Efficiency
Load Disconnect
Output Discharge
Over Current Protection
Synchronous Rectification
UVLO Fixed    
Constant on-time (COT)
DCS-Control    
100     -40 to 125     Catalog     DSBGA | 6     Converter     6DSBGA: 1 mm2: .7 x 1.05 (DSBGA | 6)    
TPS62800 Order now 1.8     5.5     0.4     0.775     1     1     4000     4000     0.0023     Enable
Forced PWM
Light Load Efficiency
Load Disconnect
Output Discharge
Over Current Protection
Synchronous Rectification
UVLO Fixed    
DCS-Control     100     -40 to 125     Catalog     DSBGA | 6     Converter     6DSBGA: 1 mm2: .7 x 1.05 (DSBGA | 6)    
TPS62802 Order now 1.8     5.5     1.8     3.3     1     1     4000     4000     0.0023     Enable
Forced PWM
Light Load Efficiency
Load Disconnect
Output Discharge
Over Current Protection
Synchronous Rectification
UVLO Fixed    
DCS-Control     100     -40 to 125     Catalog     DSBGA | 6     Converter     6DSBGA: 1 mm2: .7 x 1.05 (DSBGA | 6)    
TPS62806 Order now 1.8     5.5     0.4     0.775     0.6     1     1500     1500     0.0023     Enable
Forced PWM
Light Load Efficiency
Load Disconnect
Output Discharge
Over Current Protection
Synchronous Rectification
UVLO Fixed    
DCS-Control     100     -40 to 125     Catalog     DSBGA | 6     Converter     6DSBGA: 1 mm2: .7 x 1.05 (DSBGA | 6)    
TPS62807 Order now 1.8     5.5     1.2     1.55     0.6     1     1500     1500     0.0023     Enable