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ST LD3985M33RRoHS

Manufacturer
ST
MPN
LD3985M33R
LCSC Part #
C46243
Packaging
SOT-23-5L
Customer #
Key Attributes
Ultra-Low Dropout Low Noise Bipolar CMOS Regulator Compatible with Low ESR Capacitors
Datasheetpdf iconST LD3985M33R
In-Stock: 2,515
2,515 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
5+$ 0.3168$ 1.58
50+$ 0.2524$ 12.62
150+$ 0.2249$ 33.74
500+$ 0.1905$ 95.25
3,000+$ 0.1752$ 525.60
6,000+$ 0.166$ 996.00
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 Voltage3.3V
Number of Outputs1
Operating Temperature-40℃~+125℃@(Tj)
Supply Current (Iq)150uA
Output ConfigurationPositive
Output Current150mA
Operating Voltage6V
Output TypeFixed
FeaturesEnable control;Noise bypass terminal;Over Current Protection;Thermal shutdown
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Additional Information

TypeDetails
Minimum5
Multiple5
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 input 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. Typical applications are in mobile phones and similar battery-powered wireless systems.

Features

AI Translation
  • Input voltage from 2.5 V to 6 V
  • Stable with low ESR ceramic capacitors
  • Ultra low-dropout voltage (0.60 mV typ. at 150 mA load, 0.4 mV typ. at 1 mA load)
  • Very low quiescent current (85 μA typ. at no load, 170 μA typ. at 150 mA load; max. 1.5 μA in OFF mode)
  • Guaranteed output current up to 150 mA
  • Wide range of output voltage: 1.22 V; 1.8 V; 2.5 V; 2.6 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, CBYP = 10 nF and I₀ = 1 mA]
  • Logic-controlled electronic shutdown
  • Internal current and thermal limit
  • Output low noise voltage 30 μVRMS over 10 Hz to 100 kHz
  • SVR of 60 dB at 1 kHz, 50 dB at 10 kHz
  • Temperature range: -40 °C to 125 °C

Applications

AI Translation
  • Mobile phones
  • Similar battery-powered wireless systems