Datasheet

ManualsBrandsINFINEON TECHNOLOGIES ManualsVoltage RegulatorsIFX1117ME V

Type Package Marking

IFX1117ME V33 PG-SOT223 111733

IFX1117ME V PG-SOT223 1117V

Voltage Regulator

Data Sheet

IFX1117

Data Sheet 1 Rev. 1.0, 2011-02-24

Features

• Output voltage 3.3 V or adjustable

• 1.0 A output current

• Low drop voltage < 1.2 V @ 800 mA

• Short circuit protected

• Overtemperature protected

• Operating range up to 15 V

• Industrial type

• Green Product (RoHS compliant)

For automotive and transportation applications, please refer

to the Infineon TLE and TLF voltage regulator series.

Functional Description

The IFX1117 is a monolithic integrated fixed NPN type voltage regulator that can supply

loads up to 1.0 A. The device is housed in the small surface mounted SOT223 package.

The IC is equipped with additional protection against overload, short circuit and over-

temperature.

The IFX1117ME V33 supplies a regulated output voltage of 3.3 V (±2%). The

IFX1117ME V supplies an output voltage with ±2% precision adjustable via an external

voltage divider. The input voltage for the IFX1117ME

V33 ranges from 4.5 V (= V

)

to 15 V for a load current of 800 mA, for the maximum load current of 1.0 A a minimum

input voltage of 4.7 V is required. The drop voltage V

ranges from 1.1 V to 1.4 V

depending on the load current level.

The device operates in the temperature range of T

= 0 to 125 °C.

Summary of content (15 pages)

PAGE 1
Voltage Regulator IFX1117 Data Sheet Features • • • • • • • • Output voltage 3.3 V or adjustable 1.0 A output current Low drop voltage < 1.2 V @ 800 mA Short circuit protected Overtemperature protected Operating range up to 15 V Industrial type Green Product (RoHS compliant) For automotive and transportation applications, please refer to the Infineon TLE and TLF voltage regulator series.
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IFX 1117 I Q Control with Overtemperature Protection; Overcurrent Protection Internal Reference GND AES02840 Figure 1 Data Sheet Block Diagram for Fixed Output Voltage IFX1117ME V33 2 Rev. 1.
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IFX 1117 SOT223 Q 4 1 2 GND Q 3 I AEP02868_1117_01 Figure 2 Pin Configuration IFX1117ME V33 (top view) Table 1 Pin Definitions and Functions IFX1117ME V33 Pin No. Symbol Function 1 GND Ground 2 Q Output; Connect output pin to GND via a capacitor CQ ≥ 10 μF with ESR ≤ 20 Ω (see also graph “Region of Stability”) 3 I Input 4 (TAB) Q Output; Connect to pin 2 and heatsink area on PCB Data Sheet 3 Rev. 1.
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IFX 1117 SOT223 Q 4 1 2 ADJ Q 3 I AEP02868_1117_02 Figure 3 Pin Configuration IFX1117ME V (top view) Table 2 Pin Definitions and Functions IFX1117ME V Pin No. Symbol Function 1 ADJ Adjust; defines output voltage level by external voltage divider between Q, ADJ and GND. 2 Q Output; Connect output pin to GND via a capacitor CQ ≥ 10 μF with ESR ≤ 20 Ω (see also graph “Region of Stability”). 3 I Input 4 (TAB) Q Output; Connect to pin 2 and heatsink area on PCB Data Sheet 4 Rev. 1.
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IFX 1117 Table 3 Absolute Maximum Ratings Parameter Symbol Limit Values Min. Unit Test Condition Max. Input - Output Voltage Difference (variable device only) VI - VQ Voltage -0.3 20 V – Input Voltage (fixed voltage version only) Voltage VI -0.3 20 V – VQ IQ -0.
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IFX 1117 Characteristics 3.3 V Fixed Output Voltage Device IFX1117ME V33 0 °C < Tj < 125 °C; VI = 5 V, IQ = 10 mA; unless otherwise specified. Parameter Symbol Limit Values min. typ. Unit Measuring Conditions max. Output voltage VQ 3.23 5 3.300 3.36 5 V 0 mA ≤ IQ ≤ 800 mA 4.7 V ≤ VI ≤ 10 V Output voltage VQ – 3.300 – V 0 mA ≤ IQ ≤ 1000 mA; 4.7 V ≤ VI ≤ 15V Line regulation ΔVQ – 1 6 mV 4.
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IFX 1117 Characteristics Adjustable Output Voltage Device IFX1117ME V 0 °C < Tj < 125 °C; VI = 5 V, IQ = 10 mA; unless otherwise specified. Parameter Symbol Limit Values min. typ. Unit Measuring Conditions max. Reference voltage VQ 1.22 5 1.250 1.27 0 V 10 mA ≤ IQ ≤ 800 mA; 1.4 V ≤ (VI-VQ) ≤ 10 V Output voltage VQ – 1.250 – V 10 mA ≤ IQ ≤ 1000 mA; 2.65 V ≤ VI ≤ 15 V Line regulation ΔVQ – 0.035 0.2 %1) 1.5 V ≤(VI-VQ)≤ 13.75 V Load regulation ΔVQ – 0.2 0.
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IFX 1117 IFX1117ME V33 II VI CI I 3 2 IQ Q CQ 100 nF VQ 1 GND IGND AES02937_1117 Figure 4 Measuring Circuit Application Information IFX1117ME V33 I VI CI1 3 2 Q CI2 VQ CQ2 1 GND AES02816_1117 Figure 5 Data Sheet Typical Application Circuit IFX1117ME V33 8 Rev. 1.
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IFX 1117 Output The IFX1117 requires a 10 μF output capacitor with ESR ≤ 20 Ω for the stability of the regulation loop. The use of a tantalum output capacitor is recommended. For the adjustable device IFX1117ME V the output voltage level can be defined by a voltage divider between Q, ADJ and GND. The output voltage calculates: R V Q = V REF × ⎛⎝ 1 + -----2-⎞⎠ + I ADJ × R 2 R1 (1) At the input of the regulator a capacitor is recommended to compensate line influences.
PAGE 10
IFX 1117 Typical Performance Characteristics Output Voltage VQ versus Junction Temperature T j Dropout Voltage Vdr versus Output Current IQ VQ-TJ.VSD VDR-IQ.VSD 1300 ΔV Q [%] Vdr [mV] 1.0 1100 I Q = 10 mA T j = 25 °C 0.0 1000 Tj = 125 °C -1.0 900 -2.0 800 0 25 50 75 100 125 150 0 200 400 600 Tj [°C] 800 I Q [mA] Dropout Voltage Vdr versus Junction Temperature Tj Maximum Output Current IQ versus Junction Temperature Tj VDR-TJ.VSD 1300 IQMAX-TJ.VSD 2.
PAGE 11
IFX 1117 Typical Performance Characteristics Adjust Pin Current IADJ versus Junction Temperature Tj Power Supply Ripple Rejection PSRR versus Frequency f IADJ.VSD PSRR.VSD 80 IFX1117 ME V VI = 5 V I A DJ [µA] PSRR 88 60 84 50 80 40 76 30 [dB] 0 25 50 75 100 IFX1117 ME V33 VI = 8 V VRIPPLE = 1 V I Q = 10 mA CQ = 10 µF Tantalum 10 125 T j [°C] IFX1117 ME V33 VI = 5 V 100 10k 1k 100k f [Hz] Region of Stability Version ME V33 Region of Stability Version ME V V33_ESR-IQ.
PAGE 12
IFX 1117 Typical Performance Characteristics Load Transient Response Version ME V33 Line Transient Response Version ME V33 V33_dVQ-dIQ.vsd V33_dVQ-dVI.vsd ΔVQ Δ VQ 50 50 [mV] [mV] 0 0 -50 -50 VI = 5 V CQ = 10 µF Tantalum -100 IQ = 100 mA CQ = 10 µF Tantalum Ι Q [A] VI [V] 0.6 5.75 0.1 4.75 0 20 40 60 80 0 20 40 60 t [µs] 80 t [µs] Load Transient Response Version ME V Line Transient Response Version ME V V_dVQ-dIQ.vsd V_dVQ-dVI.
PAGE 13
IFX 1117 Package Outline 1.6±0.1 6.5 ±0.2 3 ±0.1 A 0.1 MAX. B 1 0.25 M A 2 3 3.5 ±0.2 0.5 MIN. 7 ±0.3 4 2.3 0.7 ±0.1 4.6 0.28 ±0.04 0.25 M B 0...10˚ SOT223-PO V04 4 1.4 1.7 4.8 4.8 1.4 1.7 3.5 1.2 1.1 1.4 0.
PAGE 14
IFX 1117 Revision History Version Date Rev. 1.
PAGE 15
Edition 2011-02-24 Published by Infineon Technologies AG 81726 Munich, Germany © 2011 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.