TPS7B70-Q1 Automotive 300mA 40V low-Iq LDO linear regulator with power good | TI.com

TPS7B70-Q1 (ACTIVE)

Automotive 300mA 40V low-Iq LDO linear regulator with power good

 

Description

The TPS7B70-Q1 is a 300-mA, low-dropout linear regulator (LDO) that operates from an automotive battery. The device has only 19 µA of quiescent current at light loads. Thus, the TPS7B70-Q1 is an excellent selection to supply power to always-on components, such as microcontrollers (MCUs) and controller area network (CAN) transceivers.

The input voltage range of the TPS7B70-Q1 extends thru 40 V. This voltage helps the device withstand transient conditions, such as load-dump. The device also has a power good (PG) pin to tell the system when the output voltage is in regulation. To achieve the necessary operation, you can adjust the PG threshold voltage and delay. The threshold voltage of the PG signal is adjusted through external resistors. Adjust the delay with an external capacitor.

This device operates in ambient temperatures from –40°C to +125°C, and with junction temperatures from –40°C to +150°C. This device also has a thermally conductive package that enables sustained operation despite significant dissipation across the device, a typical property of off-battery operation. These features, along with included current limit and thermal shutdown protection, make the TPS7B70-Q1 an excellent selection to supply power to automotive system components.

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Device Junction Temperature Range:
    –40°C to +150°C
  • Maximum Output Current: 300 mA
  • 4-V to 40-V Wide VIN Input-Voltage Range With up to 45-V Transients
  • Fixed 3.3-V and 5-V Outputs
  • Maximum Dropout Voltage: 400 mV at 300 mA
  • Stable With Output Capacitor in Wide Range of Capacitance (4.7 µF to 500 µF) and ESR (0.001 Ω to 20 Ω)
  • Low Quiescent Current (I(Q))
    • < 4 µA When EN is Low (Shutdown Mode)
    • 19 µA Typical at Light Loads With VINT High
  • Fully Adjustable Power-Good Threshold and Power-Good Delay Timing
  • Low Input-Voltage Tracking to UVLO
  • Integrated Fault Protection
    • Overload Current-Limit Protection
    • Thermal Shutdown
  • 16-Pin HTSSOP PowerPAD™ Package
    • Thermal Resistance (RθJA): 39.7°C/W

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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)
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)
TPS7B70-Q1
Fixed Output    
0.3    
40    
4    
5    
3.3    
5
3.3    
HTSSOP | 16    
Enable
Power Good    
1    
-40 to 125    
39.7    
0.70 | 1ku    
Automotive    
Ceramic
Non-Ceramic    
40    
2    
300    
0.019    
16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)