Automotive Linear LDO High Precision Voltage Tracking Regulator TLE4250-2G: typical application circuit

Open online SPICE simulator circuit link: atv_LDO_TLE4250-2G_high_precision_tracker_application_circuit.TSC


Automotive Low Dropout Voltage Tracking Regulator TLE4250-2G

Application Circuit

Thermal model description:
THERMAL_MODEL = 1: JEDEC 1s0p 600mm2 cooling area
THERMAL_MODEL = 2: JEDEC 1s0p 300mm2 cooling area
THERMAL_MODEL = 3: JEDEC 1s0p, footprint
THERMAL_MODEL = 4: JEDEC 2s2p, with vias
THERMAL_MODEL = 10: No self-heating, only TEMP value used as a temperature

The TLE4250-2G is a monolithic integrated low dropout voltage tracker in a tiny SMD package
PG-SCT595-5 with excellent thermal resistance. It is designed to supply off-board loads
(e.g. sensors) in automotive environments. The IC protects itself in case of overload,
over temperature, reverse polarity as well as output short circuit to battery and ground.
Supply voltages up to V I = 45 V are regulated to a reference voltage applied at the adjust
input “ADJ” with high accuracy. The output “Q” is able to drive loads up to 50 mA. In order
to reduce the quiescent current to a minimum, the TLE4250-2 can be switched to stand-by
mode by setting the adjust/enable input “ADJ/EN” to “low”.

{ Please double click here to enter design criteria }

{ Load Resistance }
R_Load := 500;
{ Number of Thermal Model }
THERMAL_MODEL := 1;
{ Ambient Temperature }
T_AMB := 25;

Model performance :
- dynamic behavior not modeled (CQ/ESR stability, line/load transient response,
start-up, PSRR)
- static behavior is modelled by approximation to the real behavior of the device
over temperature
- the thermal simulations represent an approximation of the actual thermal
behavior of the device according to the JEDEC standards at power = 0.2 Watt
and Temperature = 25 °C

Technical Assistance

Product info: TLE4250-2G

Voltage Regulator
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