Dual Low-Drop Voltage Regulator
Description
Dual Low Drop Voltage Regulator
TLE 4476
Features
• Output 1: 350 mA; 3.
3 V ± 4% • Output 2: 430 mA; 5.
0 V ± 4% • Enable input for output 2 • Low quiescent current in OFF state • Wide operation range: up to 42 V • Reverse battery protection: up to 42 V • Output protected against short circuit • Wide temperature range: -40 °C to 170 °C • Overvoltage protection up to 65 V (< 400 ms) • Overtemperature protection • Overload protection • Green Product (RoHS compliant) • AEC Qualified
P-TO252-5-11
Functional Description
The TLE 4476 is a monolithic integrated voltage regulator providing two output voltages, Q1 is a 3.
3 V output for loads up to 350 mA and Q2 is a 5 V output providing 430 mA.
The device is available in the PG-TO252-5-11 (D-Pak) package.
Output 2 can be switched ON/OFF via the Enable input EN.
The TLE 4476 is designed to supply microprocessor systems under the severe conditions of automotive applications and is therefore equipped with additional protection functions against overload, short circuit and overtemperature.
Type TLE 4476 D
Data Sheet
Package PG-TO252-5-11
1
Rev.
2.
5, 2007-03-20
TLE 4476
PG-TO252-5 GND
15
Ι EN Q1 Q2
AEP02562
Figure 1
Table 1 Pin No.
1
2
3 4
5
Pin Configuration (top view)
Pin Definitions and Functions
Symbol Function
I Input voltage; block to GND directly at the IC with a ceramic capacitor
Q1 3.
3 V output; block to GND with a capacitor CQ1 ≥ 10 μF,
ESR < 2 Ω at 10 kHz
GND
Ground
Q2 5.
0 V output; block to GND with a capacitor CQ2 ≥ 10 μF,
ESR < 3 Ω at 10 kHz
EN Enable input; to switch ON and OFF Q2, ON with high signal
Data Sheet
2 Rev.
2.
5, 2007-03-20
TLE 4476
Ι1
Bandgap Reference
EN 5
Figure 2 Block Diagram
3 GND
2 Q1 4 Q2
AEB02563
Data Sheet
3 Rev.
2.
5, 2007-03-20
TLE 4476
Table 2
Absolute Maximum Ratings
-40 °C < Tj < 170 °C
Parameter
Input I Voltage
Current 3.
3 V Output Q1 Voltage Current 5.
5 V Output Q2 Voltage Current Inhibit EN Voltage
Current Temperatures Junction temperature Storage temperat...
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