TPS798-Q1 50 mA, 3 V to 50 V, Micropower, Low-Dropout Linear Regulator | TI.com

TPS798-Q1 (ACTIVE)

50 mA, 3 V to 50 V, Micropower, Low-Dropout Linear Regulator

 

Description

The TPS798xx-Q1 is the first device in a line of 50-V high-voltage micropower low-dropout (LDO) linear regulators. This device is capable of supplying 50-mA output current with a dropout voltage of only 300 mV. Designed for low quiescent current high voltage (50 V) applications, 40 µA operating and 1 µA in shutdown makes the TPS798xx-Q1 an ideal choice for battery-powered or high-voltage systems. Quiescent current is also well-controlled in dropout.

Other features of the TPS798xx-Q1 include the ability to operate with low equivalent series resistance (ESR) ceramic output capacitors. This device is stable with only 1 µF on the output; most older devices require from 10-µF to 100-µF tantalum capacitors for stability. Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other regulators. Internal protection circuitry includes reverse input-battery protection, reverse output current protection, current limiting, and thermal limiting to protect the device in various fault conditions.

This device is available in a fixed output voltage of 5 V (TPS79850) and with an adjustable output voltage with a 1.275-V reference voltage (TPS79801). The TPS798xx-Q1 regulator is available in a 8-pin MSOP-PowerPAD (DGN) package with an exposed pad for enhanced thermal management capability.

Features

  • Qualified for Automotive Applications
  • Wide Input Voltage Range: 3 V to 50 V
  • Low Quiescent Current: 40 µA (Typical)
  • Low Dropout Voltage: 300 mV (Typical)
  • Output Current: 50 mA
  • No Input Protection Diodes Needed
  • Adjustable Output From 1.275 V to 28 V
  • 1-µA Quiescent Current in Shutdown
  • Stable With 1-µF Output Capacitor
  • Stable With Aluminum, Tantalum, or Ceramic
    Capacitors
  • Reverse Input-Battery Protection
  • Reverse Output Current Flow Protection
  • Thermal Limiting
  • Available in an 8-Pin MSOP-PowerPAD IC
    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)
Fixed output options (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)
TPS798-Q1 LM2936Q-Q1 TPS7A16-Q1
Adjustable Output
Fixed Output    
Fixed Output     Adjustable Output
Fixed Output    
0.05     0.05     0.1    
50     60     60    
3     5.5     3    
28     5     18.5    
1.275     3     1.2    
5     3
3.3
5    
3.3
5    
MSOP-PowerPAD | 8     SOIC | 8
SOT-223 | 4
TO-252 | 3
VSSOP | 8    
MSOP-PowerPAD | 8    
Enable
Reverse Current Protection
Reverse Voltage Protection    
Reverse Voltage Protection     Enable
Power Good    
1     1     1    
-40 to 125     -40 to 125     -40 to 125    
57     51     66    
100     500     215    
0.81 | 1ku     0.73 | 1ku     1.65 | 1ku    
Automotive     Automotive     Automotive    
Ceramic     Non-Ceramic     Ceramic    
36     35     26    
3     4     2    
300     200     60    
0.04     0.015     0.005    
8MSOP-PowerPAD: 15 mm2: 4.9 x 3 (MSOP-PowerPAD | 8)     8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
4SOT-223: 46 mm2: 7 x 6.5 (SOT-223 | 4)
3TO-252: 40 mm2: 6.1 x 6.58 (TO-252 | 3)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
8MSOP-PowerPAD: 15 mm2: 4.9 x 3 (MSOP-PowerPAD | 8)