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ST LD3985M28RRoHS

Manufacturer
ST
MPN
LD3985M28R
LCSC Part #
C5267951
Packaging
SOT-23-5L
Customer #
Key Attributes
Ultra-Low Dropout Low Noise Bipolar CMOS Regulator Compatible with Low ESR Capacitors
Datasheetpdf iconST LD3985M28R
In-Stock: 100
100 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 0.6487$ 0.65
10+$ 0.6324$ 6.32
30+$ 0.6227$ 18.68
100+$ 0.6129$ 61.29
Standard Packaging3000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
ManufacturerST
PackagingSOT-23-5L
Output Voltage2.8V
Number of Outputs1
Operating Temperature-40℃~+125℃@(Tj)
Supply Current (Iq)250uA
Output ConfigurationPositive
Operating Voltage6V
Output Current150mA
Output TypeFixed
FeaturesEnable control;Noise bypass terminal;Thermal shutdown;Short Circuit Protection;Over Current Protection
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging3000
Sales UnitPiece

Introduction

AI Translation

The LD3985 provides up to 150 mA, from 2.5 V to 6 V input voltage. The ultra low drop voltage, low quiescent current and low noise make it suitable for low power applications and in battery-powered systems. Regulator ground current increases slightly in dropout only, prolonging the battery life. Power supply rejection is better than 60 dB at low frequencies and rolls off at 10 kHz. High power supply rejection is maintained down to low voltage levels common to battery operated circuits. Shutdown logic control function is available, 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. The LD3985 is designed to work with low ESR ceramic capacitors.

Features

AI Translation
  • Input voltage range: 2.5 V - 6 V
  • Ultra low-dropout voltage: 6 mV typ. at 150 mA load
  • Very low quiescent current: 170 µA typ. at 150 mA load
  • Wide range of output voltages: 1.8 V, 2.5 V, 2.7 V, 2.8 V, 2.9 V, 3 V, 3.3 V, 4.7 V
  • Fast turn-on time: typ. 200 µs [C₀ = 1 µF, C₍ₐₚₚ₎ = 10 nF, 2.8 V, I₀ = 1 mA]
  • Logic-controlled enable
  • Output low noise voltage: 30 µV₍ᵣₘₛ₎ in 100 kHz
  • Operating temperature range: -40°C to 125°C