Texas Instruments TPS7B81 Product Info

Parameters

Rating	Catalog
Vin (max) (V)	40
Vin (min) (V)	3
Iout (max) (A)	0.15
Output options	Fixed Output
Vout (max) (V)	5
Vout (min) (V)	3.3
Fixed output options (V)	3.3, 5
Noise (µVrms)	450
PSRR at 100 KHz (dB)	60
Iq (typ) (mA)	0.0027
Features	Enable
Thermal resistance θJA (°C/W)	63.9, 72.8
Load capacitance (min) (µF)	1
Regulated outputs (#)	1
Accuracy (%)	1.5
Dropout voltage (Vdo) (typ) (mV)	270
Operating temperature range (°C)	-40 to 125

Package

HVSSOP (DGN)-8-14.7 mm² 3 x 4.9

Features

Wide input voltage range: 3 V to 40 V
Output current: 150 mA
Ultra-low quiescent current (I_Q):
- 2.7 µA typical at light loads
- 4.5 µA maximum at light loads
Accuracy: 1.5% over line, load, and temperature
Typical dropout voltage: 180 mV at 100 mA
Wide enable voltage range: 2 V to V_IN (40 V max)
Input voltage transient tolerance: 45 V
Fixed 5-V and 3.3-V output options
Current limit and thermal shutdown protection
Stable with a wide range of capacitors (1 µF to 200 µF)⁽¹⁾
Junction temperature range: –40°C to +150°C
High thermal performance packages:
- DGN (8-pin HVSSOP), R_θJA = 63.9°C/W
- DRV (6-pin WSON), R_θJA = 72.8°C/W
⁽¹⁾

⁽¹⁾See the output capacitor requirements in the Recomended Operation Conditions table

Wide input voltage range: 3 V to 40 V
Output current: 150 mA
Ultra-low quiescent current (I_Q):
- 2.7 µA typical at light loads
- 4.5 µA maximum at light loads
Accuracy: 1.5% over line, load, and temperature
Typical dropout voltage: 180 mV at 100 mA
Wide enable voltage range: 2 V to V_IN (40 V max)
Input voltage transient tolerance: 45 V
Fixed 5-V and 3.3-V output options
Current limit and thermal shutdown protection
Stable with a wide range of capacitors (1 µF to 200 µF)⁽¹⁾
Junction temperature range: –40°C to +150°C
High thermal performance packages:
- DGN (8-pin HVSSOP), R_θJA = 63.9°C/W
- DRV (6-pin WSON), R_θJA = 72.8°C/W
⁽¹⁾

⁽¹⁾See the output capacitor requirements in the Recomended Operation Conditions table

Description

The TPS7B81 is a low-dropout (LDO) linear regulator that operates from input voltages up to 40 V and can supply up to 150 mA in current. With only 2.7 µA of quiescent current at light loads, the device is an excellent choice for wide input supply designs and high cell count battery applications that need very low standby power consumption. The 45-V transient tolerance provides additional headroom for applications where inductive kickback may be present, thereby reducing external circuitry for voltage suppression.

With integrated short-circuit and overcurrent limiting, the TPS7B81 protects the system during fault conditions. In addition to the low standby power consumption, the very low dropout voltage in light load conditions helps maintain regulation even when powered by depleted batteries.

The TPS7B81 is available in thermally enhanced, 8-pin HVSSOP and 6-pin WSON packages. Both packages offer high thermal conductivity, and their small size supports compact design, making them well suited for space-limited applications such as power tools or motor drive modules and battery packs.

The TPS7B81 is a low-dropout (LDO) linear regulator that operates from input voltages up to 40 V and can supply up to 150 mA in current. With only 2.7 µA of quiescent current at light loads, the device is an excellent choice for wide input supply designs and high cell count battery applications that need very low standby power consumption. The 45-V transient tolerance provides additional headroom for applications where inductive kickback may be present, thereby reducing external circuitry for voltage suppression.

With integrated short-circuit and overcurrent limiting, the TPS7B81 protects the system during fault conditions. In addition to the low standby power consumption, the very low dropout voltage in light load conditions helps maintain regulation even when powered by depleted batteries.

The TPS7B81 is available in thermally enhanced, 8-pin HVSSOP and 6-pin WSON packages. Both packages offer high thermal conductivity, and their small size supports compact design, making them well suited for space-limited applications such as power tools or motor drive modules and battery packs.

ELECTRONIC COMPONENTS
All In One Distributor

TPS7B81

150-mA, off-battery (40-V), ultra-low-IQ, low-dropout (LDO) voltage regulator with enable

Texas Instruments TPS7B81 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS All In One Distributor

TPS7B81

150-mA, off-battery (40-V), ultra-low-IQ, low-dropout (LDO) voltage regulator with enable

Texas Instruments TPS7B81 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS
All In One Distributor