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 is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS6262x supports up to 600mA load current, and allows the use of low cost chip inductor and capacitors.

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

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

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

The TPS6262x is available in an 6-pin chip-scale package (CSP).

Features

  • 90% Efficiency at 6MHz Operation
  • 31µA Quiescent Current
  • Wide VIN Range From 2.3V to 5.5V
  • 6MHz Regulated Frequency Operation
  • 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 (Optional)
  • 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 (CSP)
    Regular and Ultra-Thin Packaging

View more

Parametrics Compare all products in Step-Down (Buck) Converter

 
Regulated Outputs (#)
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Topology
Switching Frequency (Max) (kHz)
Switch Current Limit (Typ) (A)
Iq (Typ) (mA)
Duty Cycle (Max) (%)
Soft Start
Compensation
Special Features
Brand
Control Mode
Preset Vout (V)
Vref Accuracy (Typ) (%)
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
TPS62621 LM8801 TPS62080 TPS62290 TPS62080A TPS62260 TPS53319 TPS53318 TPS53353 TPS53355 TPS62081 TLV62080 LMR22007
1     1     1     1     1     1     1     1     1     1     1     1     1    
2.3     2.3     2.3     2.3     2.3     2     1.5     1.5     1.5     1.5     2.3     2.5     2.7    
5.5     5.5     6     6     6     6     22     22     15     15     6     5.5     20    
1.8     1.7927     0.5     0.6     0.5     0.6     0.6     0.6     0.6     0.6     1.8     0.5     0.9    
1.8     1.8473     4     6     4     6     5.5     5.5     5.5     5.5     1.8     4     5.5    
0.6     0.6     1.2     1     1.2     0.6     14     8     20     30     1.2     1.2     0.75    
Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck    
6600     6400       2500       2500     1000     1000     1000     1000       2000     2.2    
1.1     1.1     2.8     1.4     2.8     1     22     8     28     40     2.8     2.8      
0.031     2.7     0.0065     0.015     0.0065     0.015     0.32     0.32     0.32     0.32     0.006     0.03     0.017    
100       100     100     100     100     90     90     90     90     100     100     80    
Fixed     Fixed     Fixed     Fixed     Fixed     Fixed     Fixed     Adjustable     Adjustable     Adjustable     Fixed     Fixed     Fixed    
Internal     Internal     Internal     Internal     Internal     Internal     Not Needed     Not Needed     Not Needed     Not Needed     Internal     Internal     Internal    
Enable
Light Load Efficiency
Synchronous Rectification    
Enable
Light Load Efficiency    
Enable
Light Load Efficiency
Load Disconnect
Output Discharge
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
Enable
Light Load Efficiency
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification    
Enable
Light Load Efficiency
Synchronous Rectification    
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Synchronous Rectification    
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Synchronous Rectification    
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Synchronous Rectification    
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
Power Good    
Enable
Light Load Efficiency
Power Good
Synchronous Rectification    
    DCS-Control       DCS-Control       SWIFT     SWIFT     SWIFT     SWIFT     DCS-Control     DCS-Control     SIMPLE SWITCHER    
  Voltage Mode       Voltage Mode       Voltage Mode     D-CAP     D-CAP     D-CAP     D-CAP          
1.8     1                     1.8        
2     0.75     2.6     1.5       1.5     1     1     1     1       2.6     1    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 85     -30 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     -40 to 85     -40 to 125    
6DSBGA     6DSBGA     8WSON     6SON     8WSON     5SOT
6SON    
22LSON-CLIP     22LSON-CLIP     22LSON-CLIP     22LSON-CLIP     8WSON     8WSON     9DSBGA    
0.65 | 1ku     0.30 | 1ku     0.83 | 1ku     0.80 | 1ku     0.83 | 1ku     0.65 | 1ku     3.35 | 1ku     3.05 | 1ku     3.50 | 1ku     3.75 | 1ku     0.83 | 1ku     0.65 | 1ku     0.89 | 1ku    

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