LP2988AIM-2.8/NOPB National Semiconductor, LP2988AIM-2.8/NOPB Datasheet

IC REG LDO 200MA 2.8V 8SOIC

LP2988AIM-2.8/NOPB

Manufacturer Part Number
LP2988AIM-2.8/NOPB
Description
IC REG LDO 200MA 2.8V 8SOIC
Manufacturer
National Semiconductor
Datasheet

Specifications of LP2988AIM-2.8/NOPB

Regulator Topology
Positive Fixed
Voltage - Output
2.8V
Voltage - Input
Up to 16V
Voltage - Dropout (typical)
0.18V @ 200mA
Number Of Regulators
1
Current - Output
200mA
Current - Limit (min)
250mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*LP2988AIM-2.8
*LP2988AIM-2.8/NOPB
LP2988AIM-2.8
© 2005 National Semiconductor Corporation
LP2987/LP2988
Micropower, 200 mA Ultra Low-Dropout Voltage
Regulator with Programmable Power-On Reset Delay;
Low Noise Version Available (LP2988)
General Description
The LP2987/8 are fixed-output 200 mA precision LDO volt-
age regulators with power-ON reset delay which can be
implemented using a single external capacitor.
The LP2988 is specifically designed for noise-critical appli-
cations. A single external capacitor connected to the Bypass
pin reduces regulator output noise.
Using an optimized VIP
cess, these regulators deliver superior performance:
Dropout Voltage: 180 mV
load (typical).
Ground Pin Current: 1 mA
10 mA load (typical).
Sleep Mode: The LP2987/8 draws less than 2 µA quiescent
current when shutdown pin is held low.
Error Flag/Reset: The error flag goes low when the output
drops approximately 5% below nominal. This pin also pro-
vides a power-ON reset signal if a capacitor is connected to
the DELAY pin.
Precision Output: Standard product versions of the LP2987
and LP2988 are available with output voltages of 5.0V, 3.8V,
3.3V, 3.2V, 3.0V, or 2.8V, with guaranteed accuracy of 0.5%
(“A” grade) and 1% (standard grade) at room temperature.
Block Diagrams
VIP
is a trademark of National Semiconductor Corporation.
@
(Vertically Integrated PNP) pro-
200 mA load, and 1 mV
@
200 mA load, and 200 µA
DS100017
10001701
@
1 mA
@
Features
n Ultra low dropout voltage
n Power-ON reset delay requires only one component
n Bypass pin for reduced output noise (LP2988)
n Guaranteed continuous output current 200 mA
n Guaranteed peak output current
n SO-8 and mini SO-8 surface mount packages
n
n Low ground pin current at all loads
n 0.5% output voltage accuracy (“A” grade)
n Wide supply voltage range (16V max)
n Overtemperature/overcurrent protection
n −40˚C to +125˚C junction temperature range
Applications
n Cellular Phone
n Palmtop/Laptop Computer
n Camcorder, Personal Stereo, Camera
<
2 µA quiescent current when shutdown
>
250 mA
www.national.com
March 2005
10001702

Related parts for LP2988AIM-2.8/NOPB

LP2988AIM-2.8/NOPB Summary of contents

Page 1

... Block Diagrams VIP ™ trademark of National Semiconductor Corporation. © 2005 National Semiconductor Corporation Features n Ultra low dropout voltage n Power-ON reset delay requires only one component ...

Page 2

Connection Diagram (LP2987) Surface Mount Packages: Top View SO-8/Mini SO-8 Package See NS Package Drawing Number M08A/MUA08A For ordering information, refer to Table 1in this document. Ordering Information (LP2987) TABLE 1. Package Marking and Ordering Information Output Voltage Grade 5 ...

Page 3

Ordering Information (LP2987) TABLE 1. Package Marking and Ordering Information (Continued) Output Voltage Grade 3.0 A 3.0 STD 3.0 STD 2.8 A 2.8 A 2.8 STD 2.8 STD STD 5 STD 3.8 A 3.8 A ...

Page 4

Ordering Information (LP2987) TABLE 1. Package Marking and Ordering Information (Continued) Output Voltage Grade 3.0 STD 3.0 STD 2.8 A 2.8 A 2.8 STD 2.8 STD 8-Lead LLP STD 5 STD 3.3 A 3.3 A ...

Page 5

... See NS Package Drawing Number LDC08A Order Information Package Marking LP2988AIMMX-5.7 LP2988AIMM-5.7 LP2988IMMX-5.7 LP2988IMM-5.7 LP2988AIMMX-5.0 LP2988AIMM-5.0 LP2988IMMX-5.0 LP2988IMM-5.0 LP2988AIMMX-3.8 LP2988AIMM-3.8 LP2988IMMX-3.8 LP2988IMM-3.8 LP2988AIMMX-3.3 LP2988AIMM-3.3 LP2988IMMX-3.3 LP2988IMM-3.3 LP2988AIMMX-3.2 LP2988AIMM-3.2 5 10001758 Top View Supplied as: LF2A 3500 Units on Tape and Reel LF2A 1000 Units on Tape and ...

Page 6

... LP2988IMM-2.8 L0IB LP2988AIMMX-2.7 LCVA LP2988AIMM-2.7 LCVA LP2988IMMX-2.7 LCVB LP2988IMM-2.7 LCVB LP2988AIMMX-2.5 L99A LP2988AIMM-2.5 L99A LP2988IMMX-2.5 L99B LP2988IMM-2.5 L99B LP2988AIMX-5.0 2988AIM5.0 LP2988AIM-5.0 2988AIM5.0 LP2988IMX-5.0 2988IM5.0 LP2988IM-5.0 2988IM5.0 LP2988AIMX-3.8 2988AIM3.8 LP2988AIM-3.8 2988AIM3.8 LP2988IMX-3.8 2988IM3.8 6 Supplied as: 3500 Units on Tape and Reel 1000 Units on Tape and ...

Page 7

... LP2988IMX-3.2 2988IM3.2 LP2988IM-3.2 2988IM3.2 LP2988AIMX-3.0 2988AIM3.0 LP2988AIM-3.0 2988AIM3.0 LP2988IMX-3.0 2988IM3.0 LP2988IM-3.0 2988IM3.0 LP2988AIMX-2.8 2988AIM2.8 LP2988AIM-2.8 2988AIM2.8 LP2988IMX-2.8 2988IM2.8 LP2988IM-2.8 2988IM2.8 LP2988AIMX-2.7 2988AIM2.7 LP2988AIM-2.7 2988AIM2.7 LP2988IMX-2.7 2988IM2.7 LP2988IM-2.7 2988IM2.7 LP2988AIMX-2.5 2988AIM2.5 LP2988AIM-2.5 2988AIM2.5 LP2988IMX-2.5 2988IM2.5 LP2988IM-2.5 2988IM2.5 7 Supplied as: Shipped in Anti-Static Rails 2500 Units on Tape and ...

Page 8

Ordering Information (LP2988) TABLE 2. Package Marking and Ordering Information (Continued) Output Voltage Grade 8-Lead LLP STD 5 STD 3.3 A 3.3 A 3.3 STD 3.3 STD 3.0 A 3.0 A 3.0 STD 3.0 STD ...

Page 9

... 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 seconds) ESD Rating (Note 2) Power Dissipation (Note 3) Electrical Characteristics Limits in standard typeface are for T ...

Page 10

Electrical Characteristics Limits in standard typeface are for T less otherwise specified (NOM Symbol Parameter I Delay Pin Current DELAY Source SHUTDOWN INPUT V S/D Input Voltage S/D (Note 8) I S/D ...

Page 11

Typical Performance Characteristics C = 2.2 µF, S/D is tied Temperature OUT Dropout Voltage vs Load Current Ground Pin Current vs Temperature and Load Unless otherwise specified: T (NOM) ...

Page 12

Typical Performance Characteristics C = 2.2 µF, S/D is tied Input Current vs V Load Transient Response Line Transient Response www.national.com Unless otherwise specified (NOM ...

Page 13

Typical Performance Characteristics C = 2.2 µF, S/D is tied Turn-On Waveform Short Circuit Current Short Circuit Current vs Output Voltage Unless otherwise specified: T (NOM ...

Page 14

Typical Performance Characteristics C = 2.2 µF, S/D is tied Load Regulation Shutdown Voltage vs Temperature Delay Pin Current vs V www.national.com Unless otherwise specified (NOM) + 1V, I ...

Page 15

Typical Performance Characteristics C = 2.2 µF, S/D is tied Delay Sink Current vs Temperature Output Impedance vs Frequency Ripple Rejection (LP2987) Unless otherwise specified: T (NOM ...

Page 16

Typical Performance Characteristics C = 2.2 µF, S/D is tied Output Noise Density (LP2987) Output Noise Density (LP2988) Turn-On Time (LP2988) www.national.com Unless otherwise specified (NOM ...

Page 17

Typical Performance Characteristics C = 2.2 µF, S/D is tied Turn-On Time (LP2988) Basic Application Circuits Unless otherwise specified: T (NOM mA. (Continued 10001756 ...

Page 18

Basic Application Circuits *Capacitance value shown is minimum required to assure stability, but may be increased without limit. Larger output capacitor provides improved dynamic response. **Shutdown must be actively terminated (see Application Hints). Tie to INPUT (pin 4) if not ...

Page 19

Application Hints (Continued) IMPORTANT: The output capacitor must maintain its ESR in the stable region over the full operating temperature range of the application to assure stability. The minimum required amount of output capacitance is 4.7 µF. Output capacitor size ...

Page 20

Application Hints (Continued) DETAILS OF ERR/RESET CIRCUIT OPERATION: (Refer to LP2987/8 Equivalent Circuit). LP2987/8 Equivalent Circuit The output of comparator U2 is the ERR/RESET flag. Since open-collector output, it requires the use of a pull-up resistor (R ...

Page 21

Application Hints (Continued) 10001749 21 10001750 www.national.com ...

Page 22

Physical Dimensions unless otherwise noted www.national.com inches (millimeters) Mini SO-8 Package Type MM NS Package Number MUA08A SO-8 Package Type M NS Package Number M08A 22 ...

Page 23

... BANNED SUBSTANCE COMPLIANCE National Semiconductor manufactures products and uses packing materials that 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. ...

Related keywords