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LD2985BM32R

Description
5 V FIXED POSITIVE LDO REGULATOR, 0.575 V DROPOUT, PDSO5
CategoryPower/power management    The power supply circuit   
File Size818KB,18 Pages
ManufacturerSTMicroelectronics
Websitehttp://www.st.com/
Environmental Compliance
Download Datasheet Parametric View All

LD2985BM32R Overview

5 V FIXED POSITIVE LDO REGULATOR, 0.575 V DROPOUT, PDSO5

LD2985BM32R Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerSTMicroelectronics
Parts packaging codeSOT-23
package instructionLSSOP, TSOP5/6,.11,37
Contacts5
Reach Compliance Codecompli
ECCN codeEAR99
AdjustabilityFIXED
Maximum drop-back voltage 10.575 V
Nominal dropback voltage 10.28 V
Maximum absolute input voltage16 V
Maximum input voltage16 V
Minimum input voltage2.5 V
JESD-30 codeR-PDSO-G5
JESD-609 codee3
length2.9 mm
Maximum grid adjustment rate0.0121%
Humidity sensitivity level1
Number of functions1
Output times1
Number of terminals5
Working temperatureTJ-Max125 °C
Operating temperatureTJ-Mi-40 °C
Maximum output current 10.15 A
Maximum output voltage 13.328 V
Minimum output voltage 13.072 V
Nominal output voltage 13.2 V
Package body materialPLASTIC/EPOXY
encapsulated codeLSSOP
Encapsulate equivalent codeTSOP5/6,.11,37
Package shapeRECTANGULAR
Package formSMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Regulator typeFIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height1.45 mm
surface mountYES
technologyBIPOLAR
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
Maximum voltage tolerance3.5%
width1.625 mm
LD2985
Very low drop and low noise voltage regulator with inhibit function
Datasheet
-
production data
to 30 µVrms. Typical application are in cellular
phone, palmtop laptop computer, personal digital
assistant (PDA), personal stereo, camcorder and
camera.
Table 1. Device summary
SOT23-5L
Order codes
LD2985BM18R
LD2985BM25R
Output voltages
1.8 V
2.5 V
2.8 V
3.0 V
3.1 V
3.3 V
5.0 V
Features
Very low dropout voltage (280 mV at 150 mA
and 7 mV at 1 mA load)
Very low quiescent current (2 mA typ. at 150
mA load and 80 µA at no load)
Output current up to 150 mA
Logic controlled electronic shutdown
Output voltage of 1.8, 2.5, 2.8, 3, 3.1, 3.3, 5 V
Internal current and thermal limit
Low output noise voltage 30 mVrms
Small package SOT23-5L
Temperature range: - 40°C to 125 °C
LD2985BM28R
LD2985BM30R
LD2985BM31R
LD2985BM33R
LD2985BM50R
Description
The LD2985 is a 150 mA fixed output voltage
regulator. The ultra low drop voltage and the low
quiescent current make them particularly suitable
for low noise, low power applications, and in
battery powered systems. In sleep mode
quiescent current is less than 1 µA when INHIBIT
pin is pulled low. Shutdown logic control function
is available on pin 3 (TTL compatible). This
means that when the device is used as local
regulator, it is possible to put a part of the board in
standby, decreasing the total power consumption.
An external capacitor, C
BYP
= 10 nF, connected
between bypass pin and GND reduces the noise
November 2013
This is information on a product in full production.
DocID8189 Rev 13
1/18
www.st.com
18
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