TPS7A54-Q1 Automotive 4A High-Accuracy Low-Noise Low-Dropout (LDO) Voltage Regulator | TI.com

TPS7A54-Q1 (ACTIVE)

Automotive 4A High-Accuracy Low-Noise Low-Dropout (LDO) Voltage Regulator

 

Description

The TPS7A54-Q1 device is a low-noise (4.4 µVRMS), low-dropout linear regulator (LDO) capable of sourcing 4 A with only 240 mV of maximum dropout. The device output voltage is adjustable from 0.8 V to 5.1 V using an external resistor divider.

The combination of low-noise (4.4 µVRMS), high-PSRR, and high output current capability makes the TPS7A54-Q1 ideal to power noise-sensitive components such as those found in radar power and infotainment applications. The high performance of this device limits power-supply-generated phase noise and clock jitter, making this device ideal for powering RF amplifiers, radar sensors, and chipsets. Specifically, RF amplifiers benefit from the high-performance and 5.0-V output capability of the device.

For digital loads [such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)] requiring low-input voltage, low-output (LILO) voltage operation, the exceptional accuracy (1% over load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A54-Q1 provides optimal system performance.

The versatility of the TPS7A54-Q1 makes the device a component of choice for many demanding applications.

 

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified for Automotive Applications
    • Temperature Grade 1: –40°C ≤ TA ≤ +125°C
    • HBM ESD Classification Level 2
    • CDM ESD Classification Level C4A
  • Extended Junction Temperature (TJ) Range: –40°C to +150°C
  • Input Voltage Range:
    • Without BIAS: 1.4 V to 6.5 V
    • With BIAS: 1.1 V to 6.5 V
  • Adjustable Output Voltage Range: 0.8 V to 5.1 V
  • Low Dropout: 240 mV (max) at 4 A With BIAS
  • Output Voltage Noise: 4.4 µVRMS
  • 1% (max) Accuracy Over Line, Load, and Temperature With BIAS
  • Power-Supply Ripple Rejection:
    • 40 dB at 500 kHz
  • Adjustable Soft-Start Inrush Control
  • Open-Drain, Power-Good (PG) Output
  • 3.5-mm × 3.5-mm, 20-Pin VQFN Package

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Parametrics Compare all products in Linear regulators (LDO)

 
Output options
Iout (Max) (A)
Vin (Max) (V)
Vin (Min) (V)
Vout (Max) (V)
Vout (Min) (V)
Package Group
Features
Regulated outputs (#)
Operating temperature range (C)
Thermal Resistance θJA (°C/W)
Noise (uVrms)
Approx. price (US$)
Rating
Output capacitor type
PSRR @ 100 KHz (dB)
Accuracy (%)
Vdo (Typ) (mV)
Iq (Typ) (mA)
Package size: mm2:W x L (PKG)
TPS7A54-Q1 TPS7A52-Q1 TPS7A53-Q1
Adjustable Output     Adjustable Output     Adjustable Output    
4     2     3    
6.5     6.5     6.5    
1.1     1.1     1.1    
5.1     5.2     5.15    
0.8     0.8     0.8    
VQFN | 20     VQFN | 20
VQFN | 20    
VQFN | 20
VQFN | 20    
Enable
Foldback Overcurrent Protection
Output Discharge
Power Good
Soft Start    
Enable
Foldback Overcurrent Protection
Output Discharge
Power Good
Soft Start    
Enable
Foldback Overcurrent Protection
Output Discharge
Power Good
Soft Start    
1     1     1    
-40 to 150     -40 to 150     -40 to 150    
40     40     40    
4.4     4.4     4.4    
3.78 | 1ku     2.65 | 1ku     3.13 | 1ku    
Automotive     Automotive     Automotive    
Ceramic     Ceramic     Ceramic    
33     45     39    
1     1     1    
150     95     110    
3     3     3    
20VQFN: 12 mm2: 3.5 x 3.5 (VQFN | 20)     20VQFN: 12 mm2: 3.5 x 3.5 (VQFN | 20)
20VQFN: 16 mm2: 4 x 4 (VQFN | 20)    
20VQFN: 12 mm2: 3.5 x 3.5 (VQFN | 20)
20VQFN: 16 mm2: 4 x 4 (VQFN | 20)