FAN1539_05 FAIRCHILD [Fairchild Semiconductor], FAN1539_05 Datasheet
FAN1539_05
Related parts for FAN1539_05
FAN1539_05 Summary of contents
Page 1
FAN1539/FAN1540 1A/1.3A, LDO with Low Quiescent Current Features ■ Very Low Ground Current (I GND ■ Excellent Line Regulation ■ Excellent Load Regulation ■ Very Low Transient Overshoot Stable with low ESR Output Capacitor (ESR = 0m Ω ) ■ ...
Page 2
Block Diagram V IN BANDGAP REFERENCE START-UP CIRCUIT Notes connection for FAN1540MMPX available for FAN1540MMPX. SEN Pin Assignments GND 1 V OUT 2 FAN1540 V SEN 5x6mm 8-Lead MLP Pin Description ...
Page 3
Absolute Maximum Ratings Parameter Operating Input Voltage Power Dissipation Short Circuit Output Current Operating Junction Temperature Range Thermal Resistance–Junction to Tab, TO-252 Thermal Resistance–Junction to Tab, 3mmx3mm 6-lead MLP (Note 3) Thermal Resistance–Junction to Tab, 5mmx6mm 8-lead MLP (Note 3) ...
Page 4
Electrical Characteristics—FAN1539MPX, FAN1540MPX, FAN1540MMPX, FAN1540DX Unless otherwise specified 4.50V to 7V Boldface limits apply over operating junction temperature range of 0°C ≤ T Parameter Symbol Output Voltage V OUT FAN1540 Line Regulation REG (LINE) Load Regulation ...
Page 5
Electrical Characteristics—FAN1539MPX, FAN1540MPX, FAN1540MMPX, FAN1540DX (Continued) Unless otherwise specified 4.50V to 7V Boldface limits apply over operating junction temperature range of 0°C ≤ T Parameter Symbol Quiescent I GND Current Quiescent I GND Current Thermal T ...
Page 6
Electrical Characteristics—FAN1540D18X Unless otherwise specified 3.135V to 3.465V junction temperature range of 0°C ≤ T Parameter Symbol Output Voltage V OUT Line Regulation REG (LINE) Load Regulation REG (LOAD) Dropout Voltage V D (Note 6) Current ...
Page 7
Test Circuit FAN1539/FAN1540 Rev. 1.1.1 DUT IN OUT 22µF 10µF GND Notes: 1. Use low ESR capacitors should be placed as close OUT C OUT as possible. IN www.fairchildsemi.com ...
Page 8
Typical Performance Characteristics—FAN1539MPX, FAN1540MPX, FAN1540MMPX, FAN1540DX Output Voltage vs. Temperature 3.310 3.305 3.300 3.295 3.290 3.285 3.280 3.275 - Ambient Temperature (°C) Ground Pin Current vs. Input Voltage 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0. ...
Page 9
Typical Performance Characteristics—FAN1539MPX, FAN1540MPX, FAN1540MMPX, FAN1540DX Line Transient Response 3.300V (Ceramic Low ESR Capacitors) Time (20µs/div) Short Circuit Removal Response 3.300V (Ceramic Low ESR Capacitors) ~3. Time (40µs/div) Output Spectral Noise Density vs. Frequency 2.0 1.8 1.6 1.4 ...
Page 10
Typical Performance Characteristics—FAN1540D18X Output Voltage vs. Temperature 1.810 1.805 1.800 1.795 1.790 1.785 1.780 1.775 0 50 Ambient Temperature (°C) Ground Pin Current vs. Input Voltage 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0. Input Voltage ...
Page 11
Applications Information General Circuit Description The FAN1539/FAN1540 is an advanced low dropout volt- age regulator, specially designed for applications in por- table computers, where high performance and low quiescent current are required. The device has an inter- nal trimmed bandgap ...
Page 12
Mechanical Dimensions 5x6mm 8-Lead MLP 0. TOP VIEW 0. 0.10 C 1.0 MAX C 0.08 SIDE VIEW 0.05 0. PIN #1 IDENT. (OPTIONAL 1.27 BOTTOM VIEW FAN1539/FAN1540 Rev. 1.1.1 5 ...
Page 13
Mechanical Dimensions 3x3mm 6-Lead MLP 0. 0. 2.6 0. TOP VIEW 1.0 MAX 0.10 C 0.08 C 0.05 0.00 SIDE VIEW SEATING PLANE 1 0.45 0.20 0.2 MIN 6 BOTTOM VIEW NOTES: A. CONFORMS ...
Page 14
Mechanical Dimensions 3-Lead TO-252 6.73 6.35 5.46 5. (0.59) 0.89 0.64 4.57 0. SEE E1 NOTE GAGE PLANE 0.61 0.46 10° 0° 1.78 1.40 (2.90) DETAIL A (ROTATED –90°) ...
Page 15
TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended exhaustive list of all such trademarks. ® ACEx™ FAST ActiveArray™ FASTr™ Bottomless™ FPS™ Build it Now™ FRFET™ ...