Low-Noise Fast-Transient-Response, 1.5A Low-Dropout Voltage Regulator - TPS7A4501M

TPS7A4501M (ACTIVE)

Low-Noise Fast-Transient-Response, 1.5A Low-Dropout Voltage Regulator

 

Description

The TPS7A4501 is a low-dropout (LDO) regulator optimized for fast transient response. The device can supply 1.5 A of output current with a dropout voltage of 300 mV. Operating quiescent current is 1 mA, dropping to less than 1 µA in shutdown. Quiescent current is well controlled; it does not rise in dropout, as with many other regulators. In addition to fast transient response, the TPS7A4501 regulator has very low output noise, which makes it ideal for sensitive RF supply applications.

Output voltage range is from 1.21 V to 20 V. The TPS7A4501 is stable with output capacitance as low as 10 µF. Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and reverse-current protection. The device is available as an adjustable device with a 1.21-V reference voltage. The TPS7A4501 regulator is available in the 10-pin GDFP (U) package.

Features

  • Optimized for Fast Transient Response
  • Output Current: 1.5 A
  • High Output Voltage Accuracy: 1% at 25°C
  • Dropout Voltage: 300 mV
  • Low Noise: 35 µVRMS (10 Hz to 100 kHz)
  • High Ripple Rejection: 68 dB at 1KHz
  • 1-mA Quiescent Current
  • No Protection Diodes Needed
  • Controlled Quiescent Current in Dropout
  • Adjustable Output from 1.21 V to 20 V
  • Less Than 1-µA Quiescent Current in Shutdown
  • Stable with 10-µF Ceramic Output Capacitor
  • Reverse-Battery Protection
  • Reverse Current Protection

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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
Additional Features
Operating Temperature Range (C)
Noise (uVrms)
Rating
Output Capacitor Type
PSRR @ 100KHz (dB)
Accuracy (%)
Vdo (Typ) (mV)
Iq (Typ) (mA)
Package Size: mm2:W x L (PKG)
TPS7A4501M
Adjustable Output   
0.75   
20   
2.3   
20   
1.21   
CFP   
Enable
Overcurrent Protection
Reverse Current Protection
Thermal Shutdown   
-55 to 125   
35   
Military   
Ceramic   
38   
3   
300   
1   
See datasheet (CFP)   

Other qualified versions of TPS7A4501M

Version Part Number Definition
Space TPS7A4501-SP Radiation tolerant, ceramic packaging and qualified for use in Space-based application