3.3V to 5V Input, 6A, D-CAP+ Mode Synchronous Step-Down Converter with 2-Bit VID - TPS51461

TPS51461 (ACTIVE)

3.3V to 5V Input, 6A, D-CAP+ Mode Synchronous Step-Down Converter with 2-Bit VID

Description

The TPS51461 is a fully integrated synchronous buck regulator employing D-CAP+™. It is used for up to 5-V step-down where system size is at its premium, performance and optimized BOM are must-haves.

This device fully supports Intel system agent applications with integrated 2-bit VID function.

The TPS51461 also features two switching frequency settings (700 kHz and 1 MHz), skip mode, pre-bias startup, programmable external capacitor soft-start time/voltage transition time, output discharge, internal VBST Switch, 2-V reference (±1%), power good and enable.

The TPS51461 is available in a 4 mm × 4 mm, 24-pin, QFN package (Green RoHs compliant and Pb free) and is specified from 0°C to 85°C.

Features

  • Integrated FETs Converter w/TI Proprietary D-CAP+™ Mode Architecture
  • 6-A Maximum Output Current
  • Minimum External Parts Count
  • Support all MLCC Output Capacitor and SP/POSCAP
  • Auto Skip Mode
  • Selectable 700-kHz and 1-MHz Frequency
  • Small 4 × 4, 24-Pin, QFN Package

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
Vref Accuracy (Typ) (%)
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
TPS51461 TPS54620 TPS54821 TPS54622 TPS53313 TPS53315 TPS53318 TPS51363 TPS51362 TPS51367 TPS53353 TPS53355 TPS54678
1     1     1     1     1     1     1     1     1     1     1     1     1    
3.3     4.5     4.5     4.5     4.5     3     1.5     3     3     3     1.5     1.5     2.95    
5     17     17     17     16     15     22     22     22     22     15     15     6    
0.8     0.8     0.6     0.6     0.6     0.6     0.6     0.6     0.6     0.6     0.6     0.6     0.6    
6.5     15     15     15     10     5.5     5.5     2     2     2     5.5     5.5     4.5    
6     6     8     6     6     12     8     10     10     12     20     30     6    
Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck    
1000     1600     1600     1600     1500     1000     1000     800     800     800     1000     1000     2000    
7.5     8     11.5     8     9     21     8     12     12     16     28     40     9    
1.1     0.6     0.6     0.002     0.32     0.32     0.32     0.56     0.1     0.1     0.32     0.32     0.25    
84     98     100     98     99     90     90     87     87     87     90     90     98    
Adjustable     Adjustable     Adjustable     Adjustable     Adjustable     Adjustable     Adjustable     Adjustable     Adjustable     Adjustable     Adjustable     Adjustable     Adjustable    
Not Needed     External     External     External     External     Not Needed     Not Needed     Not Needed     Not Needed     Not Needed     Not Needed     Not Needed     External    
Dynamic Voltage Scaling
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification    
Enable
Frequency Synchronization
Power Good
Tracking
Synchronous Rectification    
Enable
Frequency Synchronization
Power Good
Synchronous Rectification
Tracking    
Enable
Frequency Synchronization
Power Good
Tracking
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
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
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
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
Frequency Synchronization
Power Good
Tracking
Adjustable UVLO
Synchronous Rectification    
  SWIFT     SWIFT     SWIFT       SWIFT     SWIFT           SWIFT     SWIFT     SWIFT    
D-CAP+     Current Mode     Current Mode     Current Mode     Voltage Mode     D-CAP     D-CAP     D-CAP2     D-CAP2     D-CAP2     D-CAP     D-CAP     Current Mode    
1.5     1     1     1     1     1     1     1     1     1     1     1     1    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 85     -40 to 150     -40 to 125     -40 to 150     -40 to 85     -40 to 85     -40 to 85     -10 to 85     -10 to 85     -10 to 85     -40 to 85     -40 to 85     -40 to 150    
24VQFN     14VQFN     14VQFN     14VQFN     24VQFN     40VQFN     22LSON-CLIP     28VQFN-CLIP     28VQFN-CLIP     28VQFN-CLIP     22LSON-CLIP     22LSON-CLIP     16WQFN    
2.95 | 1ku     2.50 | 1ku     1.90 | 1ku     2.50 | 1ku     2.30 | 1ku     3.50 | 1ku     3.05 | 1ku     2.10 | 1ku     2.30 | 1ku     2.70 | 1ku     3.50 | 1ku     3.75 | 1ku     2.75 | 1ku    

Related end equipment

  • Low-Voltage Applications Stepping Down from 5-V or 3.3-V Rail
  • Notebook/Desktop Computers

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