Datasheet

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Automotive Power

Data Sheet

Rev. 1.0, 2012-06-15

TLF80511

Low Dropout Linear Fixed Voltage Regulator

TLF80511TC

Summary of content (15 pages)

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TLF80511 Low Dropout Linear Fixed Voltage Regulator TLF80511TC Data Sheet Rev. 1.
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Low Dropout Linear Fixed Voltage Regulator 1 TLF80511 Overview Features • • • • • • • • • • • • • Output Voltage 5 V Output Voltage Precision ± 2 % Output Current up to 400 mA Ultra Low Current Consumption 38 µA Very Low Dropout Voltage: 100 mV at 100 mA Output Current Extended Operating Range Starting at 3.
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TLF80511 Block Diagram 2 Block Diagram I Q Current Limitation Bandgap Reference Temperature Shutdown GND BlockDiagram_VoltageRegulator_ne w.vsd Figure 1 Data Sheet Block Diagram 1 Rev. 1.
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TLF80511 Pin Configuration 3 Pin Configuration 3.1 Pin Assignment PG-TO263-3 GND 1 2 3 I GND Q PinConfig_PG-TO263-3-1.vsd Figure 2 Pin Configuration 3.
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TLF80511 General Product Characteristics 4 General Product Characteristics 4.1 Absolute Maximum Ratings Absolute Maximum Ratings 1) -40 °C ≤ Tj ≤ 150 °C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter Symbol Limit Values Min. Max. Unit Conditions Input I 4.1.1 Voltage VI -0.3 45 V – Voltage VQ -0.3 7 V – Tj Tstg -40 150 °C – -50 150 °C – VESD,HBM -4 4 kV Human Body Model (HBM)2) VESD,CDM -1.5 1.
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TLF80511 General Product Characteristics 4.2 Pos. 4.2.1 Functional Range Parameter Symbol Input Voltage Range for Normal Operation Limit Values VI Min. Max. VQ,nom + Vdr 40 VI,ext 3.3 40 4.2.3 Output Capacitor’s Requirements CQ 1 – for Stability ESR(CQ) – 5 4.2.4 Junction Temperature Tj -40 150 1) Between min. value and VQ,nom + Vdr: VQ = VI - Vdr. Below min. value: VQ = 0 V 4.2.
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TLF80511 Block Description and Electrical Characteristics 5 Block Description and Electrical Characteristics 5.1 Voltage Regulation The output voltage VQ is divided by a resistor network. This fractional voltage is compared to an internal voltage reference and drives the pass transistor accordingly. The control loop stability depends on the output capacitor CQ, the load current, the chip temperature and the internal circuit design.
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TLF80511 Block Description and Electrical Characteristics Electrical Characteristics Voltage Regulator 5 V version VI = 13.5 V, -40 °C ≤ Tj ≤ 150 °C, all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter Symbol Limit Values Unit Conditions Min. Typ. Max. 5.1.1 Output Voltage Precision VQ 4.9 5.0 5.1 V 0.05 mA < IQ < 400 mA 6 V < VI < 28 V 5.1.2 Output Voltage Precision VQ 4.9 5.0 5.1 V 0.05 mA < IQ < 200 mA 5.
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TLF80511 Block Description and Electrical Characteristics 5.2 Current Consumption Electrical Characteristics Current Consumption VI = 13.5 V, -40 °C ≤ Tj ≤ 150 °C, positive current flowing into pin (unless otherwise specified) Pos. Parameter Symbol 5.2.1 Current Consumption Iq = II - IQ Iq Limit Values Unit Conditions IQ = 0.05 mA Tj < 25 °C IQ = 0.05 mA Tj < 125 °C IQ = 400 mA Tj < 125 °C1) Min. Typ. Max. – 38 46 µA 5.2.2 – – 75 µA 5.2.
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TLF80511 Block Description and Electrical Characteristics 5.3 Typical Performance Characteristics Voltage Regulator Current Consumption Iq versus Output Current IQ Dropout Voltage Vdr versus Junction Temperature Tj 400 VI = 13.
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TLF80511 Block Description and Electrical Characteristics Output Voltage ΔVQ versus Input Voltage ΔVI Output Voltage ΔVQ versus Output Current ΔIQ 2 8 IQ = 5 mA VI = 13.5 V Tj = 25 °C 6 0 Tj = -40 °C Tj = 150 °C 4 -2 Tj = 25 °C 2 Δ VQ [mV] Δ VQ [mV] -4 Tj = -40 °C -6 0 -2 -8 -4 -10 -6 -12 -8 0 100 200 300 400 0 10 20 ΔIQ [mA] 30 40 Δ VI [V] Maximum Output Current IQ versus Input Voltage VI Current Consumption Iq versus Input Voltage VI 100 700 VQ= 4.
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TLF80511 Block Description and Electrical Characteristics Stability Region: Equivalent Serial Resistor ESR versus Output Current IQ Power Supply Ripple Rejection versus Frequency 100 70 CQ = 1 µF V I = 6..28 V IQ = 10 mA CQ = 1 µF VI = 13.5 V Vripple = 0.
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TLF80511 Package Outlines 6 Package Outlines 4.4 10 ±0.2 1.27 ±0.1 B 0.1 A 8.5 1) 0.05 2.4 2.7 ±0.3 4.7 ±0.5 7.55 1) 9.25 ±0.2 (15) 1 ±0.3 0...0.3 0...0.15 0.75 ±0.1 0.5 ±0.1 1.05 8˚ MAX. 2.54 5.08 0.25 A B M 1) Typical All metal surfaces: tin plated, except area of cut. Metal surface min. x=7.25, y=6.9 Figure 4 Data Sheet 0.1 B GPT09362 PG-TO263-3 1 Rev. 1.
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TLF80511 Revision History 7 Revision History Revision Date Changes 1.0 2012-06-15 Data Sheet - Initial Version Data Sheet 1 Rev. 1.
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Edition 2012-06-15 Published by Infineon Technologies AG 81726 Munich, Germany © 2012 Infineon Technologies AG All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics.