TPS62243 1.8V / 300mA Step-Down Converter in 2x2mm SON/TSOT23 Package | TI.com

TPS62243
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1.8V / 300mA Step-Down Converter in 2x2mm SON/TSOT23 Package

 

Description

The TPS6224x device is a highly efficient synchronous step-down DC-DC converter. The device provides up to 300-mA output current from a single Li-Ion cell and is ideal for battery powered portable applications like mobile phones and other portable equipment.

With an wide input voltage range of 2 V to 6 V, the device also supports two- and three-cell alkaline, 3.3-V and 5-V input voltage rails.

The TPS6224x operates at 2.25-MHz fixed switching frequency and enters power save mode operation at light load currents to maintain high efficiency over the entire load current range.

The power save mode is optimized for low output voltage ripple. For low-noise applications, the device can be forced into fixed-frequency pulse width modulation (PWM) mode by pulling the MODE pin high. In shutdown mode, the current consumption is reduced to less than 1 µA. The TPS6224x allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6224x operates over a free-air temperature range of –40°C to 85°C. The device is available in a 5-pin SOT and a 6-pin 2-mm × 2-mm WSON package.

Features

  • High Efficiency - Greater Than 94%
  • Output Current up to 300 mA
  • VIN Range from 2 V to 6 V for Li-ion Batteries With
    Extended Voltage Range
  • 2.25-MHz Fixed-Frequency Operation
  • Power Save Mode at Light Load Currents
  • Output Voltage Accuracy in PWM Mode ±1.5%
  • Adjustable Output Voltage from 0.6 V to VIN
  • Typical 15-µA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Available in a SOT (5) and 2-mm × 2-mm × 0.8-
    mm WSON (6) Package
  • Allows <1-mm Solution Height

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)
TPS62243 Order now 2     6     1.8     1.8     0.3     1     2000     2500     0.015     Enable
Forced PWM
Light Load Efficiency
Synchronous Rectification    
Voltage Mode     100     -40 to 85     Catalog     WSON | 6     Converter     6WSON: 4 mm2: 2 x 2 (WSON | 6)    
TPS62240 Order now 2     6     0.6     6     0.3     1     2000     2500     0.015     Enable
Forced PWM
Light Load Efficiency
Synchronous Rectification    
Voltage Mode     100     -40 to 85     Catalog     SOT-23-THIN | 5
WSON | 6    
Converter     5SOT-23-THIN: 8 mm2: 2.8 x 2.9 (SOT-23-THIN | 5)
6WSON: 4 mm2: 2 x 2 (WSON | 6)    
TPS62242 Order now 2     6     1.2     1.2     0.3     1     2000     2500     0.015     Enable
Forced PWM
Light Load Efficiency
Synchronous Rectification    
Voltage Mode     100     -40 to 85     Catalog     WSON | 6     Converter     6WSON: 4 mm2: 2 x 2 (WSON | 6)