TPS64202 (ACTIVE)

Adjustable, up to 3A, 95% Efficient Step-Down Controller, 20uA, SOT-23

Adjustable, up to 3A, 95% Efficient Step-Down Controller, 20uA, SOT-23 - TPS64202
Datasheet
 

Recommended alternative parts

  • TPS54318  -  TPS54318 is a 6V, 3A integrated FET DC/DC converter with enhanced performance and feature set

Description

The TPS6420x are nonsynchronous step-down controllers that are ideally suited for systems powered from a 5-V or 3.3-V bus or for applications powered from a 1-cell Li-Ion battery or from a 2- to 4-cell NiCd, NiMH, or alkaline battery. These step-down controllers drive an external P-channel MOSFET allowing design flexibility. To achieve highest efficiency over a wide load current range, this controller uses a minimum on time, minimum off time control scheme and consumes only 20-µA quiescent current. The minimum on time of typically 600 ns (TPS64203) allows the use of small inductors and capacitors. When disabled, the current consumption is reduced to less than 1 µA. The TPS6420x is available in the 6-pin SOT23 (DBV) package and operates over a free air temperature range of –40°C to 85°C.

Features

  • Step-Down Controller for Applications With up to 95% Efficiency
  • 1.8-V to 6.5-V Operating Input Voltage Range
  • Adjustable Output Voltage Range From 1.2 V to VI
  • High Efficiency Over a Wide Load Current Range
  • 100% Maximum Duty Cycle for Lowest Dropout
  • Internal Softstart
  • 20-µA Quiescent Current (Typical)
  • Overcurrent Protected
  • Available in a SOT23 Package
  • APPLICATIONS
    • USB Powered Peripherals
    • Organizers, PDAs, and Handheld PCs
    • Low Power DSP Supply
    • Digital Cameras
    • Hard Disk Drives
    • Portable Audio Players

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Parametrics Compare all products in Buck Controller (External Switch)

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Regulated Outputs (#)
Number of Phases
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Features
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Rating
Package Group
Control Mode
TPS64202 TPS64200 TPS64201 TPS64203
1.8    1.8    1.8    1.8   
6.5    6.5    6.5    6.5   
1.2    1.2    1.2    1.2   
6.5    6.5    6.5    6.5   
3    3    3    3   
1    1    1    1   
1    1    1    1   
550    350    450    800   
550    350    450    800   
0.02    0.02    0.02    0.02   
Enable    Enable    Enable    Enable   
100    100    100    100   
-40 to 85    -40 to 85    -40 to 85    -40 to 85   
Catalog    Catalog    Catalog    Catalog   
SOT-23    SOT-23    SOT-23    SOT-23   
Hysteretic    Hysteretic    Hysteretic    Hysteretic   

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