TPS7A88-Q1 Automotive Dual 1A Low-Noise (4μVRMS) LDO Voltage Regulator | TI.com

TPS7A88-Q1 (ACTIVE)

Automotive Dual 1A Low-Noise (4μVRMS) LDO Voltage Regulator

 

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Description

The TPS7A88-Q1 is a dual, low-noise (4 µVRMS), low-dropout (LDO) voltage regulator capable of sourcing 1 A per channel with 250 mV of maximum dropout.

The TPS7A88-Q1 provides the flexibility of two independent LDOs and approximately 50% smaller solution size than two single-channel LDOs. Each output is adjustable with external resistors from 0.8 V to 5.15 V. The TPS7A88-Q1 wide input-voltage range supports operation as low as 1.4 V and up to 6.5 V.

With 1% output voltage accuracy (over line, load, and temperature) and soft-start capabilities to reduce in-rush current, the TPS7A88-Q1 is ideal for powering sensitive analog low-voltage devices (such as voltage-controlled oscillators [VCOs], analog-to-digital converters [ADCs], digital-to-analog converters [DACs], high-end processors, and field-programmable gate arrays [FPGAs]).

The TPS7A88-Q1 is designed to power noise-sensitive components such as those found in RF, radar communications, and telematic applications. The low 4-µVRMS output noise and wideband PSRR (40 dB at 1 MHz) minimizes phase noise and clock jitter. These features maximize performance of clocking devices, ADCs, and DACs. The TPS7A88-Q1 features wettable flanks for simple optical inspection.

Features

  • AEC-Q100 Qualified With the Following Results:
    • Temperature Grade 1: –40°C ≤ TA ≤ +125°C
    • HBM ESD Classification Level 2
    • CDM ESD Classification Level C5
  • Two Independent LDO Channels
  • Low Output Noise: 4 µVRMS (10 Hz to 100 kHz)
  • Low Dropout: 230 mV (Maximum) at 1 A
  • Wide Input Voltage Range: 1.4 V to 6.5 V
  • Wide Output Voltage Range: 0.8 V to 5.15 V
  • High Power-Supply Ripple Rejection:
    • 70 dB at 100 Hz
    • 40 dB at 100 kHz
    • 40 dB at 1 MHz
  • 1% Accuracy Over Line, Load, and Temperature
  • Excellent Load Transient Response
  • Adjustable Start-Up Inrush Control
  • Selectable Soft-Start Charging Current
  • Independent Open-Drain Power-Good (PG) Outputs
  • Stable With a 10-µF or Larger Ceramic Output Capacitor
  • Low Thermal Resistance: RθJA = 39.8°C/W
  • 4-mm × 4-mm Wettable Flank WQFN 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)
TPS7A88-Q1 TPS7A87 TPS7A88 TPS7A89
Adjustable Output     Adjustable Output     Adjustable Output     Adjustable Output    
1     0.5     1     2    
6.5     6.5     6.5     6.5    
1.4     1.4     1.4     1.4    
5.15     5.2     5.2     5.2    
0.8     0.8     0.8     0.8    
QFN | 20     QFN | 20     QFN | 20     QFN | 20    
Enable
Foldback Overcurrent Protection
Output Discharge
Power Good
Soft Start    
Enable
Foldback Overcurrent Protection
Power Good
Soft Start    
Enable
Foldback Overcurrent Protection
Power Good
Soft Start    
Enable
Foldback Overcurrent Protection
Power Good
Soft Start    
2     2     2     2    
-40 to 140     -40 to 125     -40 to 125     -40 to 125    
40     33     33     33    
3.8     3.8     3.8     3.8    
2.12 | 1ku     0.90 | 1ku     1.80 | 1ku     2.30 | 1ku    
Automotive     Catalog     Catalog     Catalog    
Ceramic     Ceramic     Ceramic     Ceramic    
40     48     48     35    
1     1     1     1    
130     75     130     260    
2.1     2.1     2     2.1    
20QFN: 16 mm2: 4 x 4 (QFN | 20)     20QFN: 16 mm2: 4 x 4 (QFN | 20)     20QFN: 16 mm2: 4 x 4 (QFN | 20)     20QFN: 16 mm2: 4 x 4 (QFN | 20)