LP2985IM5X-3.8 National Semiconductor, LP2985IM5X-3.8 Datasheet
![no-image](/images/manufacturer_photos/0/4/469/national_semiconductor_sml.jpg)
LP2985IM5X-3.8
Available stocks
Related parts for LP2985IM5X-3.8
LP2985IM5X-3.8 Summary of contents
Page 1
... Multiple voltage options, from 2.5V to 5.0V, are available as standard products. Consult factory for custom voltages. Block Diagram VIP ™ trademark of National Semiconductor Corporation. © 2004 National Semiconductor Corporation Features n Ultra low dropout voltage n Guaranteed 150 mA output current n Smallest possible size (SOT-23, micro SMD package) ...
Page 2
Basic Application Circuit *ON/OFF input must be actively terminated. Tie to V **Minimum capacitance is shown to ensure stability (may be increased without limit). Ceramic capacitor required for output (see Application Hints). ***Reduces output noise (may be omitted if application ...
Page 3
... LP2985AIM5X-3.0 L0OA LP2985AIM5-3.0 L0OA LP2985IM5X-3.0 L0OB LP2985IM5-3.0 L0OB LP2985AIM5X-3.1 L0PA LP2985AIM5-3.1 L0PA LP2985IM5X-3.1 L0PB LP2985IM5-3.1 L0PB LP2985AIM5X-3.2 L0QA LP2985AIM5-3.2 L0QA LP2985IM5X-3.2 L0QB LP2985IM5-3.2 L0QB LP2985AIM5X-3.3 L0RA LP2985AIM5-3.3 L0RA LP2985IM5X-3.3 L0RB LP2985IM5-3.3 L0RB LP2985AIM5X-3.5 LAIA LP2985AIM5-3.5 LAIA LP2985IM5X-3.5 LAIB LP2985IM5-3.5 LAIB LP2985AIM5X-3.6 L0SA LP2985AIM5-3 ...
Page 4
... SMD, 5 Bump Package (BPA05 - 170 µm ball) 2.4 A 2.4 A 2.4 STD 2.4 STD 2.5 A 2.5 A 2.5 STD 2.5 STD www.national.com (Continued) Package Order Information Marking LP2985AIM5-3.8 L0YA LP2985IM5X-3.8 L0YB LP2985IM5-3.8 L0YB LP2985AIM5X-4.0 L0TA LP2985AIM5-4.0 L0TA LP2985IM5X-4.0 L0TB LP2985IM5-4.0 L0TB LP2985AIM5X-4.5 LA7A LP2985AIM5-4.5 LA7A LP2985IM5X-4.5 LA7B LP2985IM5-4.5 LA7B LP2985AIM5X-4.7 LAJA LP2985AIM5-4.7 LAJA LP2985IM5X-4 ...
Page 5
Ordering Information TABLE 1. Package Marking and Ordering Information (Continued) Output Voltage (V) Grade 2.6 A 2.6 A 2.6 STD 2.6 STD 2.8 A 2.8 A 2.8 STD 2.8 STD 2.9 A 2.9 A 2.9 STD 2.9 STD 3.0 A ...
Page 6
Ordering Information TABLE 1. Package Marking and Ordering Information (Continued) Output Voltage (V) Grade 5.0 STD 5.0 STD micro SMD, 5 Bump Package (BLA05 - 300 µm ball) 2.85 A 2.85 A 2.85 STD 2.85 STD 3.0 A 3.0 A ...
Page 7
... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Storage Temperature Range Operating Junction Temperature Range Lead Temp. (Soldering, 5 sec.) ESD Rating (Note 2) Power Dissipation (Note 3) Electrical Characteristics Limits in standard typeface are for T ...
Page 8
Electrical Characteristics Limits in standard typeface are for T less otherwise specified (NOM Symbol Parameter e Output Noise n Voltage (RMS) Ripple Rejection I (SC) Short Circuit Current O I (PK) Peak ...
Page 9
Typical Performance Characteristics V (NOM) + 25˚C, ON/OFF pin is tied to V OUT Temperature OUT Short-Circuit Current Ripple Rejection Unless otherwise specified 10014008 Short Circuit Current vs Output Voltage 10014010 10014013 ...
Page 10
Typical Performance Characteristics V (NOM) + 25˚C, ON/OFF pin is tied to V OUT A Ripple Rejection Ripple Rejection Ripple Rejection www.national.com Unless otherwise specified (Continued) IN 10014015 10014017 10014019 10 = 1µ 4.7µF, ...
Page 11
Typical Performance Characteristics V (NOM) + 25˚C, ON/OFF pin is tied to V OUT A Ripple Rejection Output Impedance vs Frequency Output Noise Density Unless otherwise specified (Continued) IN Output Impedance vs Frequency 10014022 10014021 Ground ...
Page 12
Typical Performance Characteristics V (NOM) + 25˚C, ON/OFF pin is tied to V OUT A Dropout Voltage vs Temperature GND Pin Current vs Temperature Load Transient Response www.national.com Unless otherwise specified (Continued) IN 10014027 Instantaneous Short ...
Page 13
Typical Performance Characteristics V (NOM) + 25˚C, ON/OFF pin is tied to V OUT A Load Transient Response Line Transient Response Line Transient Response Unless otherwise specified (Continued) IN Line Transient Response 10014034 Line Transient Response ...
Page 14
Typical Performance Characteristics V (NOM) + 25˚C, ON/OFF pin is tied to V OUT A Turn-On Time Turn-On Time www.national.com Unless otherwise specified (Continued) IN 10014040 10014042 14 = 1µ 4.7µ ...
Page 15
Application Hints EXTERNAL CAPACITORS Like any low-dropout regulator, the LP2985 requires external capacitors for regulator stability. These capacitors must be correctly selected for good performance. Input Capacitor An input capacitor whose capacitance is ≥ 1 µF is required between the ...
Page 16
... MICRO SMD MOUNTING IN The micro SMD package requires specific mounting tech- niques which are detailed in National Semiconductor Appli- cation Note # 1112. Referring to the section Surface Mount Technology (SMT) Assembly Considerations, it should prevent noted that the pad style which must be used with the 5-pin ON/OFF package is the NSMD (non-solder mask defined) type ...
Page 17
Physical Dimensions inches (millimeters) unless otherwise noted For Order Numbers, refer to Table 1 in the “Ordering Information” section of this document. 5-Lead Small Outline Package (M5) NS Package Number MF05A 17 www.national.com ...
Page 18
Physical Dimensions NOTES: UNLESS OTHERWISE SPECIFIED 1. EPOXY COATING 2. 63Sn/37Pb EUTECTIC BUMP 3. RECOMMEND NON-SOLDER MASK DEFINED LANDING PAD. 4. PIN 1 IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION. REMAINING PINS ARE NUMBERED COUNTER CLOCKWISE. ...
Page 19
Physical Dimensions inches (millimeters) unless otherwise noted (Continued) NOTES: UNLESS OTHERWISE SPECIFIED 1. EPOXY COATING 2. 63Sn/37Pb EUTECTIC BUMP 3. RECOMMEND NON-SOLDER MASK DEFINED LANDING PAD. 4. PIN 1 IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION. ...
Page 20
Physical Dimensions NOTES: UNLESS OTHERWISE SPECIFIED 1. EPOXY COATING 2. 63Sn/37Pb EUTECTIC BUMP 3. RECOMMEND NON-SOLDER MASK DEFINED LANDING PAD. 4. PIN 1 IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION. REMAINING PINS ARE NUMBERED COUNTER CLOCKWISE. ...
Page 21
... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...