LP2982IM5-3.3/NOPB National Semiconductor, LP2982IM5-3.3/NOPB Datasheet

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LP2982IM5-3.3/NOPB

Manufacturer Part Number
LP2982IM5-3.3/NOPB
Description
IC REG LDO MICROPOWER SOT23-5
Manufacturer
National Semiconductor
Datasheet

Specifications of LP2982IM5-3.3/NOPB

Regulator Topology
Positive Fixed
Voltage - Output
3.3V
Voltage - Input
Up to 16V
Voltage - Dropout (typical)
0.12V @ 50mA
Number Of Regulators
1
Current - Output
50mA
Current - Limit (min)
100mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Number Of Outputs
1
Polarity
Positive
Input Voltage Max
16 V
Output Voltage
3.3 V
Output Type
Fixed
Dropout Voltage (max)
0.003 V At 0 A
Output Current
0.05 A
Line Regulation
0.014 %/V
Voltage Regulation Accuracy
+/- 2 %
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LP2982IM5-3.3
LP2982IM5-3.3TR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LP2982IM5-3.3/NOPB
Manufacturer:
TI/德州仪器
Quantity:
20 000
Part Number:
LP2982IM5-3.3/NOPB
Manufacturer:
TI
Quantity:
1 633
© 2009 National Semiconductor Corporation
LP2982
Micropower 50 mA Ultra Low-Dropout Regulator in SOT-23
Package
General Description
The LP2982 is a 50 mA, fixed-output voltage regulator de-
signed to provide ultra low dropout and lower noise in battery
powered applications.
Using an optimized VIP
the LP2982 delivers unequaled performance in all specifica-
tions critical to battery-powered designs:
Dropout Voltage: Typically 120 mV @ 50 mA load, and 7 mV
@ 1 mA load.
Ground Pin Current: Typically 375 μA @ 50 mA load, and
80 μA @ 1 mA load.
Sleep Mode: Less than 1 μA quiescent current when on/off
pin is pulled low.
Precision Output: 1.0% tolerance output voltages available
(A grade).
Low Noise: By adding an external bypass capacitor, output
noise can be reduced to 30 μV (typical).
Four output voltage versions, from 3.0V to 5.0V, are available
as standard products.
Block Diagram
VIP
®
is a registered trademark of National Semiconductor Corporation.
®
(Vertically Integrated PNP) process,
12679
Features
Applications
Ultra low dropout voltage
Guaranteed 50 mA output current
Typical dropout voltage 180 mV @ 80 mA
Requires minimum external components
< 1 μA quiescent current when shutdown
Low ground pin current at all loads
Output voltage accuracy 1.0% (A Grade)
High peak current capability (150 mA typical)
Wide supply voltage range (16V max)
Low Z
Over-Temperature/Over-Current protection
−40°C to +125°C junction temperature range
Cellular Phone
Palmtop/Laptop Computer
Personal Digital Assistant (PDA)
Camcorder, Personal Stereo, Camera
OUT
0.3Ω typical (10 Hz to 1 MHz)
1267901
January 14, 2009
www.national.com

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LP2982IM5-3.3/NOPB Summary of contents

Page 1

... Four output voltage versions, from 3.0V to 5.0V, are available as standard products. Block Diagram VIP ® registered trademark of National Semiconductor Corporation. © 2009 National Semiconductor Corporation Features ■ Ultra low dropout voltage ■ Guaranteed 50 mA output current ■ ...

Page 2

... LP2982AIM5X-3.8 L76A LP2982AIM5-3.8 L76A LP2982IM5-3.8 L76B LP2982AIM5X-5.0 L18A LP2982AIM5-5.0 L18A LP2982IM5X-5.0 L18B LP2982IM5-5.0 L18B 2 3000 Units on Tape and Reel 1000 Units on Tape and Reel 3000 Units on Tape and Reel 1000 Units on Tape and Reel 3000 Units on Tape and Reel 1000 Units on Tape and Reel ...

Page 3

... 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 Temperature (Soldering, 5 sec.) ESD Rating (Note 2) Electrical Characteristics Limits in standard typeface are for T ...

Page 4

Symbol Parameter Ripple Rejection I Short Circuit Current O(MAX) Note 1: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the device outside of its rated operating conditions. Note ...

Page 5

Typical Performance Characteristics = 4.7 μ μF, all voltage options, ON/OFF pin tied OUT IN Output Voltage vs Temperature Output Voltage vs Temparature Dropout Characteristics   Unless otherwise specified Output Voltage ...

Page 6

Dropout Voltage vs Temperature Ground Pin Current vs Temperature Input Current vs V   www.national.com 1267910 1267912 IN 1267914 6 Dropout Voltage vs Load Current 1267911 Ground Pin Current vs Load Current 1267913 Input Current   1267915 ...

Page 7

Line Transient Response   1267916 Load Transient Response   1267918 Load Transient Response   1267920 Line Transient Response   Load Transient Response   Load Transient Response   7 1267917 1267919 1267921 www.national.com ...

Page 8

Short Circuit Current   Short Circuit Current   Output Impedance vs Frequency www.national.com Instantaneous Short Circuit Current vs Temperature 1267922 Instantaneous Short Circuit Current vs Output Voltage 1267924 Output Impedance vs 1267926 8 1267923 1267925 Frequency 1267929 ...

Page 9

ON/OFF Pin Current vs V ON/OFF 1267934 Input to Output Leakage vs Temperature 1267930 Output Noise Density   1267942 ON/OFF Threshold vs Temperature Output Reverse Leakage vs Temperature Output Noise Density   9 1267935 1267931 1267948 www.national.com ...

Page 10

Output Noise Density   Turn-ON Waveform   Turn-ON Waveform   www.national.com 1267949 Turn-ON Waveform 1267950 1267952 10 Ripple Rejection   1267941   1267951 ...

Page 11

Application Hints EXTERNAL CAPACITORS Like any low-dropout regulator, the external capacitors used with the LP2982 must be carefully selected to assure regula- tor loop stability. Input Capacitor: An input capacitor whose value is required with the LP2982 (amount of capacitance ...

Page 12

REVERSE CURRENT PATH The internal PNP power transistor used as the pass element in the LP2982 has an inherent diode connected between the regulator output and input. During normal operation (where the input voltage is higher than the output) this ...

Page 13

Physical Dimensions inches (millimeters) unless otherwise noted For Order Numbers, refer to Table 1in the “Ordering Information” section of this document. 5-Lead Small Outline Package (SOT-23) NS Package Number MF05A 13 www.national.com ...

Page 14

... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...

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