LDS3985:Very low drop and low noise BiCMOS 300 mA voltage regulator

The LDS3985 provides up to 300 mA, from 2.5 V to 6 V input voltage. It is stable with ceramic and high quality tantalum capacitor. The ultra low drop voltage, low quiescent current and low noise make it suitable for low power applications and battery-powered systems. 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. Typical applications are mobile phones and similar battery-powered wireless systems, portable information appliances.

Key Features

  • Input voltage from 2.5 V to 6 V
  • Stable with low ESR ceramic capacitors
  • Very low dropout voltage (150 mV typ. at 300 mA load, 0.4 mV typ. at 1 mA load)
  • Very low quiescent current (85 μA typ. at no load, 200 μA typ. at 300 mA load; max.1.5 μA in OFF mode)
  • Guaranteed output current up to 300 mA
  • Wide range of output voltages available on request: fixed from 1.25 V to 5 V with 100 mV step
  • Fast turn-on time: typ. 240 μs
    • [CO = 2.2 μF, CBYP = 33 nF and IO = 1 mA]
  • Logic-controlled electronic shutdown
  • Internal current and thermal limit
  • Low output voltage noise: 30 μ VRMS over 10 Hz to 100 kHz
  • SVR of 55 dB at 1 kHz, 50 dB at 10 kHz
  • Temperature range: - 40 °C to 125 °C
  • Automotive grade product available in DFN6 package, temperature range: - 40 °C to 85 °C
Product Specifications
DescriptionVersionSize
DS4148: Very low drop and low noise BiCMOS 300 mA voltage regulator9.0732 KB
Brochures
DescriptionVersionSize
Brochure Power management guide05.20164 MB
Sample & Buy
Part NumberPackagePacking TypeOutput Voltage (V) (nom)Output Tolerance (typ)Output Current (A) (nom)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
LDS3985M30RSOT23-5LTape And Reel330.30.241000NECEAR99MALAYSIA
LDS3985M25RSOT23-5LTape And Reel2.530.30.241000NECEAR99MALAYSIA
LDS3985PU33RYVFDFPN 6 3x3Tape And Reel3.330.30.61000NECEAR99MALAYSIA
LDS3985M28RSOT23-5LTape And Reel2.830.30.241000NECEAR99MALAYSIA
LDS3985PU30RYVFDFPN 6 3x3Tape And Reel330.30.61000NECEAR99-
LDS3985M18RSOT23-5LTape And Reel1.830.30.241000NECEAR99MALAYSIA
LDS3985PU33RVFDFPN 6 3x3Tape And Reel3.330.30.4011000NECEAR99MALAYSIA
LDS3985PU15RYVFDFPN 6 3x3Tape And Reel1.530.30.61000NECEAR99-
LDS3985M33RSOT23-5LTape And Reel3.330.30.241000NECEAR99MALAYSIA
LDS3985M50RSOT23-5LTape And Reel530.30.241000NECEAR99MALAYSIA
LDS3985PU28RYVFDFPN 6 3x3Tape And Reel2.830.30.61000NECEAR99-
LDS3985PU15RVFDFPN 6 3x3Tape And Reel1.530.30.241000NECEAR99MALAYSIA
LDS3985PU28RVFDFPN 6 3x3Tape And Reel2.830.30.4011000NECEAR99MALAYSIA
LDS3985M15RSOT23-5LTape And Reel1.530.30.241000NECEAR99MALAYSIA
LDS3985PU18RYVFDFPN 6 3x3Tape And Reel1.830.30.61000NECEAR99-
LDS3985PU25RYVFDFPN 6 3x3Tape And Reel2.530.30.61000NECEAR99-
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
LDS3985M30RSOT23-5LIndustrialEcopack2md_wv-wspc-sot-wspc-23-wspc-5l_rvwvun71aa6-wspc-(lds3985m30r)_a_ver2_signed.pdf
md_wv-wspc-sot-wspc-23-wspc-5l_rvwvun71aa6-wspc-(lds3985m30r)_a_ver2.xml
LDS3985M25RSOT23-5LIndustrialEcopack2
LDS3985PU33RYVFDFPN 6 3x3AutomotiveEcopack2
LDS3985M28RSOT23-5LIndustrialEcopack2
LDS3985PU30RYVFDFPN 6 3x3IndustrialEcopack2
LDS3985M18RSOT23-5LIndustrialEcopack2md_wv-wspc-sot-wspc-23-wspc-5l_v1wv-wspc-ut92aa6-wspc-lock.pdf
md_wv-wspc-sot-wspc-23-wspc-5l_v1wv-wspc-ut92aa6.xml
LDS3985PU33RVFDFPN 6 3x3IndustrialEcopack2
LDS3985PU15RYVFDFPN 6 3x3AutomotiveEcopack2
LDS3985M33RSOT23-5LIndustrialEcopack2md_wv-wspc-sot-wspc-23-wspc-5l_v1wv-wspc-ut96aa6_vers2_signed.pdf
md_wv-wspc-sot-wspc-23-wspc-5l_v1wv-wspc-ut96aa6_vers2_sdm.xml
LDS3985M50RSOT23-5LIndustrialEcopack2
LDS3985PU28RYVFDFPN 6 3x3AutomotiveEcopack2
LDS3985PU15RVFDFPN 6 3x3IndustrialEcopack2
LDS3985PU28RVFDFPN 6 3x3IndustrialEcopack2
LDS3985M15RSOT23-5LIndustrialEcopack2
LDS3985PU18RYVFDFPN 6 3x3AutomotiveEcopack2
LDS3985PU25RYVFDFPN 6 3x3IndustrialEcopack2
Very low drop and low noise BiCMOS 300 mA voltage regulator LDS3985
Very low drop voltage regulators with inhibit KFXX
md_wv-wspc-sot-wspc-23-wspc-5l_rvwvun71aa6-wspc-(lds3985m30r)_a_ver2_signed.pdf LDS3985
md_wv-wspc-sot-wspc-23-wspc-5l_rvwvun71aa6-wspc-(lds3985m30r)_a_ver2.xml LDS3985
md_wv-wspc-sot-wspc-23-wspc-5l_v1wv-wspc-ut92aa6-wspc-lock.pdf LDS3985
md_wv-wspc-sot-wspc-23-wspc-5l_v1wv-wspc-ut92aa6.xml LDS3985
md_wv-wspc-sot-wspc-23-wspc-5l_v1wv-wspc-ut96aa6_vers2_signed.pdf LDS3985
md_wv-wspc-sot-wspc-23-wspc-5l_v1wv-wspc-ut96aa6_vers2_sdm.xml LDS3985