LP2980AIM5-5.0 National Semiconductor, LP2980AIM5-5.0 Datasheet

IC, LDO VOLT REG, 5V, 50mA, 5-SOT-23


Manufacturer Part Number
IC, LDO VOLT REG, 5V, 50mA, 5-SOT-23
National Semiconductor

Specifications of LP2980AIM5-5.0

Primary Input Voltage
Output Voltage Fixed
Dropout Voltage Vdo
No. Of Pins
Output Current
Operating Temperature Range
-40°C To +125°C
Termination Type
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Part Number
Part Number:
10 000
Part Number:
Texas Instruments
34 318
Part Number:
Texas Instruments
46 382
© 2009 National Semiconductor Corporation
Micropower 50 mA Ultra Low-Dropout Regulator In SOT-23
General Description
The LP2980 is a 50 mA, fixed-output voltage regulator de-
signed specifically to meet the requirements of battery-pow-
ered applications.
Using an optimized VIP
the LP2980 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.
Minimum Part Count. Requires only 1 μF of external capac-
itance on the regulator output.
Precision Output. 0.5% tolerance output voltages available
(A grade).
5.0V, 4.7V, 3.3V, 3.0V and 2.5V versions available as stan-
dard products.
Block Diagram
is a registered trademark of National Semiconductor Corporation.
(Vertically Integrated PNP) process,
Ultra low dropout voltage
Output voltage accuracy 0.5% (A Grade)
Guaranteed 50 mA output current
Requires only 1 μF external capacitance
< 1 μA quiescent current when shutdown
Low ground pin current at all load currents
High peak current capability (150 mA typical)
Wide supply voltage range (16V max)
Fast dynamic response to line and load
Low Z
Over-Temperature and Over-Current protection
−40°C to +125°C junction temperature range
Cellular Phone
Palmtop/Laptop Computer
Personal Digital Assistant (PDA)
Camcorder, Personal Stereo, Camera
over wide frequency range
January 8, 2009

Related parts for LP2980AIM5-5.0

LP2980AIM5-5.0 Summary of contents

Page 1

... Precision Output. 0.5% tolerance output voltages available (A grade). 5.0V, 4.7V, 3.3V, 3.0V and 2.5V versions available as stan- dard products. Block Diagram VIP ® registered trademark of National Semiconductor Corporation. © 2009 National Semiconductor Corporation Features ■ Ultra low dropout voltage ■ Output voltage accuracy 0.5% (A Grade) ■ ...

Page 2

Connection Diagram Pin Descriptions Pin Name Number GND 2 ON/OFF 3 N OUT www.national.com 5-Lead Small Outline Package (SOT-23) 1207803 Top View See NS Package Number MF05A Function Input Voltage Common Ground (device substrate) ...

Page 3

... LP2980IM5-3.8 L21B LP2980AIM5X-4.7 L37A LP2980AIM5-4.7 L37A LP2980IM5X-4.7 L37B LP2980IM5-4.7 L37B LP2980AIM5X-5.0 L01A LP2980AIM5-5.0 L01A LP2980IM5X-5.0 L01B LP2980IM5-5.0 L01B 3 Supplied as 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 ...

Page 4

... 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.) Electrical Characteristics Limits in standard typeface are for T otherwise specified 1V O(NOM) ...

Page 5

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 2: The ESD rating of pins 3 and 4 ...

Page 6

Typical Performance Characteristics = 2.2 μF, all voltage options, ON/OFF pin tied OUT Output Voltage vs Temperature Output Voltage vs Temperature Dropout Characteristics   www.national.com Unless otherwise specified Output Voltage vs 1207809 Dropout Characteristics ...

Page 7

Dropout Voltage vs Temperature 1207811 Ground Pin Current vs Temperature 1207810 Input Current   1207817 Dropout Voltage vs Load Current Ground Pin Current vs Load Current Input Current vs V   7 1207820 1207819 IN 1207818 www.national.com ...

Page 8

Line Transient Response   Load Transient Response   Load Transient Response   www.national.com Line Transient Response 1207821 Load Transient Response 1207841 Load Transient Response 1207823 8   1207822   1207842   1207824 ...

Page 9

Short Circuit Current   1207832 Short Circuit Current   1207833 Output Impedance vs Frequency 1207826 Instantaneous Short Circuit Current vs Temperature Output Impedance vs Frequency Output Noise Density   9 1207812 1207844 1207827 www.national.com ...

Page 10

Ripple Rejection   Output Reverse Leakage vs Temperature Turn-Off Waveform   www.national.com Input to Output Leakage vs Temperature 1207825 Turn-On Waveform 1207829 ON/OFF Pin Current vs V 1207831 10 1207828   1207830 ON/OFF   1207845 ...

Page 11

Application Hints OUTPUT CAPACITOR Like any low-dropout regulator, the LP2980 requires an out- put capacitor to maintain regulator loop stability. This capac- itor must be selected to meet the requirements of minimum capacitance and equivalent series resistance (ESR) range. It ...

Page 12

FIGURE 3. 10 μF ESR Range REVERSE CURRENT PATH The internal PNP power transistor used as the pass element in the LP2980 has an inherent diode connected between the regulator output and input. During normal operation (where the input voltage ...

Page 13

Increasing Output Current The LP2980 can be used to control higher-current regulators, by adding an external PNP pass device. With the PNP tran- sistors shown in Figure 6, the output current can be as high as 400 mA, as long ...

Page 14

With limited input voltage range, the LP2980 can control a 3.3V, 3A regulator with the use of a high current-gain external PNP pass transistor as shown in Figure 8. If the regulator loaded with the full 3A, ...

Page 15

Physical Dimensions inches (millimeters) unless otherwise noted For Order Numbers, refer to Table 1 in the “Order Information” section of this document. 5-Lead Small Outline Package (SOT-23) NS Package Number MF05A 15 www.national.com ...

Page 16

... 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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