600-mA, 6-MHz, Vout 1.8V, 90% Efficiency Step-Down Converter - TPS62621

TPS62621 (ACTIVE)

600-mA, 6-MHz, Vout 1.8V, 90% Efficiency Step-Down Converter

 

Description

The TPS6262x device family provides high-frequency synchronous step-down DC/DC converters optimized for battery-powered portable applications. Intended for low-power applications, the TPS6262x devices support up to 600 mA load current, and allow the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3 V to 5.5 V, the devices support applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 1.2 V to 2.3 V.

The TPS6262x devices operate at a regulated 6-MHz switching frequency and enter the power-save mode operation at light load currents to maintain high efficiency over the entire load current range.

The pulse frequency modulation (PFM) mode extends the battery life by reducing the quiescent current to 31 µA (typical) during light load and standby operation. For noise-sensitive applications, the device can be forced into fixed frequency pulse width modulation (PWM) mode by pulling the MODE pin high.

The TPS6262x devices operate over a free air temperature range of –40°C to 85°C. They are available in a 6-pin chip-scale package (WCSP).

Features

  • Wide Input Voltage Range from 2.3 V to 5.5 V
  • 6 MHz Regulated Frequency Operation
  • 90% Efficiency at 6 MHz Operation
  • 31 µA Quiescent Current
  • Best in Class Load and Line Transient
  • ±2% Total DC Voltage Accuracy
  • Automatic PFM/PWM Mode Switching
  • Low Ripple Light-Load PFM Mode
  • Internal Soft Start, 120-µs Start-Up Time
  • Integrated Active Power-Down Sequencing
    (TPS62624 only)
  • Current Overload and Thermal Shutdown
    Protection
  • Three Surface-Mount External Components
    Required (One MLCC Inductor, Two Ceramic
    Capacitors)
  • Complete Sub 1-mm Component Profile Solution
  • Total Solution Size < 12 mm2
  • Available in a 6-Pin NanoFree™ (WCSP)
    Regular and Ultra-Thin Packaging

View more

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)
Special Features
Control Mode
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Rating
Package Group
Approx. Price (US$)
TPS62621 TPS62612 TPS62615 TPS62616 TPS62619 TPS62620 TPS62622 TPS62623 TPS62624 TPS62625
2.3    2.3    2.3    2.3    2.3    2.3    2.3    2.3    2.3    2.3   
5.5    5.5    5.5    5.5    5.5    5.5    5.5    5.5    5.5    5.5   
1.8    1.5    1.2    2.15    1.8    1.82    1.5    1.225    1.2    1.2   
1.8    1.5    1.2    2.15    1.8    1.82    1.5    1.225    1.2    1.2   
0.6    0.35    0.35    0.35    0.35    0.6    0.6    0.6    0.6    0.6   
1    1    1    1    1    1    1    1    1    1   
5400    5400    5400    5400    5400    5400    5400    5400    5400    5400   
6600    6600    6600    6600    6600    6600    6600    6600    6600    6600   
0.031    0.031    0.031    0.031    0.031    0.031    0.031    0.031    0.031    0.031   
Enable
Light Load Efficiency
Synchronous Rectification   
Enable
Light Load Efficiency
Output Discharge
Synchronous Rectification   
Enable
Light Load Efficiency
Output Discharge
Synchronous Rectification   
Enable
Light Load Efficiency
Output Discharge
Synchronous Rectification   
Enable
Light Load Efficiency
Output Discharge
Synchronous Rectification   
Enable
Light Load Efficiency
Synchronous Rectification   
Enable
Light Load Efficiency
Synchronous Rectification   
Enable
Light Load Efficiency
Synchronous Rectification   
Enable
Light Load Efficiency
Output Discharge
Synchronous Rectification   
Enable
Light Load Efficiency
Synchronous Rectification   
Voltage Mode    Voltage Mode    Voltage Mode    Voltage Mode    Voltage Mode    Voltage Mode    Voltage Mode    Voltage Mode    Voltage Mode    Voltage Mode   
100    100    100    100    100    100    100    100    100    100   
-40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
DSBGA    DSBGA    DSBGA    DSBGA    DSBGA    DSBGA    DSBGA    DSBGA    DSBGA    DSBGA   
0.53 | 1ku    0.43 | 1ku    0.43 | 1ku    0.43 | 1ku    0.43 | 1ku    0.53 | 1ku    0.53 | 1ku    0.53 | 1ku    0.53 | 1ku    0.53 | 1ku   

Related end equipment

  • Mobile Phones, Smartphones
  • WLAN, GPS and Bluetooth™ Applications
  • DTV Tuner Applications
  • DC/DC Micro Modules