LP3984IMF-1.8/NOPB National Semiconductor, LP3984IMF-1.8/NOPB Datasheet

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LP3984IMF-1.8/NOPB

Manufacturer Part Number
LP3984IMF-1.8/NOPB
Description
IC REG LDO 150MA 1.8V SOT23-5
Manufacturer
National Semiconductor
Datasheet

Specifications of LP3984IMF-1.8/NOPB

Regulator Topology
Positive Fixed
Voltage - Output
1.8V
Voltage - Input
2.5 ~ 6 V
Number Of Regulators
1
Current - Output
150mA
Current - Limit (min)
300mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Dropout (typical)
-
Other names
LP3984IMF-1.8
LP3984IMF-1.8TR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LP3984IMF-1.8/NOPB
Manufacturer:
NS/国半
Quantity:
20 000
© 2004 National Semiconductor Corporation
LP3984
Micropower, 150mA Ultra Low-Dropout CMOS Voltage
Regulator in Subminiature 4-I/O micro SMD Package
General Description
The LP3984 is designed for portable and wireless applica-
tions with demanding performance and space requirements.
The LP3984’s performance is optimized for battery powered
systems to deliver extremely low dropout voltage and low
quiescent current. Regulator ground current increases only
slightly in dropout, further prolonging the battery life.
Power supply rejection is better than 60 dB at low frequen-
cies and starts to roll off at 10 kHz. High power supply
rejection is maintained down to low input voltage levels
common to battery operated circuits.
The device is ideal for mobile phone and similar battery
powered wireless applications. It provides up to 150 mA from
a 2.5V to 6V input. The LP3984 consumes less than 1.2µA in
disable mode and has fast turn-on time less than 20µs.
The LP3984 is available in a 4 bump micro SMD and 5 pin
SOT-23 package. Performance is specified for −40˚C to
+125˚C temperature range and is available in 1.5V, 1.8V,
2.0V, 2.9V and 3.1V output voltages. For other output volt-
age options from 1.5V to 3.5V, please contact National Semi-
conductor sales office.
Key Specifications
n 2.5 to 6.0V input range
n 150mA guaranteed output
Typical Application Circuit
Note: Pin Numbers in parenthesis indicate micro SMD package.
DS200204
n 60dB PSRR at 1kHz, 40dB at 10kHz
n ≤1.2µA quiescent current when shut down
n Fast Turn-On time: 20 µs (typ.)
n 75mV typ dropout with 150mA load
n −40 to +125˚C junction temperature range for operation
n 1.5V, 1.8V, 2.0V, 2.9V and 3.1V
Features
n Miniature 4-I/O micro SMD and SOT-23-5 package
n Logic controlled enable
n Stable with tantalum capacitors
n 1 µF Tantalum output capacitor
n Fast turn-on
n Thermal shutdown and short-circuit current limit
Applications
n CDMA cellular handsets
n Wideband CDMA cellular handsets
n GSM cellular handsets
n Portable information appliances
20020402
@
3.1V
www.national.com
IN
May 2004

Related parts for LP3984IMF-1.8/NOPB

LP3984IMF-1.8/NOPB Summary of contents

Page 1

... Typical Application Circuit Note: Pin Numbers in parenthesis indicate micro SMD package. © 2004 National Semiconductor Corporation n 60dB PSRR at 1kHz, 40dB at 10kHz n ≤1.2µA quiescent current when shut down n Fast Turn-On time: 20 µs (typ.) n 75mV typ dropout with 150mA load n − ...

Page 2

Block Diagram Pin Descriptions Name V EN GND V OUT V IN N.C. * Note: The pin numbering scheme for the micro SMD package was revised in April, 2002 to conform to JEDEC standard. Only the pin numbers were revised. ...

Page 3

... For SOT Package LP3984 Supplied as 1000 LP3984 Supplied as 3000 Units, Tape and Reel Units, Tape and Reel LP3984IMF-1.5 LP3984IMFX-1.5 LP3984IMF-1.8 LP3984IMFX-1.8 LP3984IMF-2.0 LP3984IMFX-2.0 LP3984IMF-3.1 LP3984IMFX-3.1 3 LP3984 Supplied as 3000 Units, Tape and Reel LP3984ITPX-1.8 LP3984ITPX-2.9 LP3984 Supplied as 3000 Units, Tape and Reel LP3984IBPX-1 ...

Page 4

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications OUT Junction Temperature Storage Temperature Lead Temp. Pad Temp. (Note 3) Maximum Power Dissipation(Note 4) SOT23-5 Micro SMD ESD Rating(Note 5) Human Body Model ...

Page 5

... Characteristics tables. Note 2: All voltages are with respect to the potential at the GND pin. Note 3: Additional information on pad temperature can be found in National Semiconductor Application Note (AN-1112). Note 4: The Absolute Maximum power dissipation depends on the ambient temperature and can be calculated using the formula the ambient temperature, and θ ...

Page 6

Typical Performance Characteristics = 2.5 for 1.5, 1.8, and 2.0V options Power Supply Rejection Ratio (V Power Supply Rejection Ratio (V www.national.com FIGURE 2. PSRR Input Test Signal Unless otherwise specified 0.2V ...

Page 7

Typical Performance Characteristics = 2.5 for 1.5, 1.8, and 2.0V options (Continued) IN Line Transient Response (LP3984-3.1) Line Transient Response (LP3984-3.1) Line Transient Response (LP3984-3.1) Unless otherwise specified 0.2V for output options ...

Page 8

Typical Performance Characteristics = 2.5 for 1.5, 1.8, and 2.0V options (Continued) IN Start Up Response Enable Response Load Transient Response (LP3984-3.1) www.national.com Unless otherwise specified 0.2V for output options higher than 2.5V, ...

Page 9

... MICRO SMD MOUNTING The micro SMD package requires specific mounting tech- niques which are detailed in National Semiconductor Appli- cation Note (AN-1112). Referring to the section Surface Mount Technology (SMT) Assembly Considerations, it should be noted that the pad style which must be used with the 5 pin package is NSMD (non-solder mask defined) type ...

Page 10

Physical Dimensions unless otherwise noted www.national.com inches (millimeters) Micro SMD, 4 Bump Package (TPA04) NS Package Number TPA04EJA ± 0.879 0.03mm ± 0.980 0.03mm ± 0.500 0.075mm 10 ...

Page 11

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Micro SMD, 4 Bump Package (BPA04) NS Package Number BPA04EJC ± 0.879 0.03mm ± 0.980 0.03mm ± 0.900 0.1mm 5-Lead Small Outline Package (MF) NS Package ...

Page 12

... 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. ...

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