LM27761DSGR

• Factory Lead Time
  6 Weeks
• Lifecycle Status
  ACTIVE (Last Updated: 6 days ago)
• Mounting Type
  Surface Mount
• Package / Case
  8-WFDFN Exposed Pad
• Surface Mount
  YES
• Number of Pins
  8
• Operating Temperature
  -40°C~85°C TA
• Packaging
  Tape & Reel (TR)
• JESD-609 Code
  e4
• Pbfree Code
  yes
• Part Status
  Active
• Moisture Sensitivity Level (MSL)
  2 (1 Year)
• Number of Terminations
  8
• ECCN Code
  EAR99
• Terminal Finish
  Nickel/Palladium/Gold (Ni/Pd/Au)
• Terminal Position
  DUAL
• Terminal Pitch
  0.5mm
• Base Part Number
  LM2776
• Function
  Step-Up/Step-Down
• Number of Outputs
  1
• Output Type
  Adjustable
• Voltage - Input (Min)
  2.7V
• Input Voltage-Nom
  5V
• Max Supply Voltage
  5.5V
• Min Supply Voltage
  2.7V
• Analog IC - Other Type
  SWITCHED CAPACITOR CONVERTER
• Nominal Supply Current
  370μA
• Output Configuration
  Negative
• Current - Output
  250mA
• Quiescent Current
  370μA
• Voltage - Output (Min/Fixed)
  -1.5V
• Topology
  Charge Pump
• Frequency - Switching
  2MHz
• Control Technique
  PULSE FREQUENCY MODULATION
• Synchronous Rectifier
  No
• Switcher Configuration
  INVERTER
• Voltage - Output (Max)
  -5V
• Max Junction Temperature (Tj)
  125°C
• Ambient Temperature Range High
  85°C
• Height
  800μm
• Length
  2mm
• Width
  2mm
• Thickness
  750μm
• RoHS Status
  ROHS3 Compliant
• Lead Free
  Lead Free

LM27761DSGR Description
For an input voltage ranging from 2.7 V to 5.5 V, the LM27761DSGR low-noise regulated switched-capacitor voltage inverter provides an extremely low-noise adjustable output. The application solution uses four low-cost capacitors to deliver up to 250 mA of output current. The device's controlled output can be adjusted between 1.5 and 5 volts. To reduce output resistance and voltage ripple, the LM27761DSGR operates at a 2-MHz (typical) switching frequency. The LM27761DSGR provides optimal performance when driving power amplifiers, DAC bias rails, and other high-current, low-noise voltage applications, with an operating current of only 370 A (charge-pump power efficiency better than 80% with most loads) and a typical shutdown current of 7 A.

LM27761DSGR Features
? The Input Supply Voltage is inverted and regulated.
? Low Ripple Output
? Quiescent Current Drops to 7 A After Shutdown (Typical)
? Output Current of up to 250 mA
? VIN = 5 V, 2.5-inverter output impedance
? At peak load, there is a 4% regulation.
? Quiescent Current of 370 A

LM27761DSGR Applications
? Power of the Operational Amplifier
? Systems for Wireless Communication
? Biasing of cellular phone power amplifiers
? Power Supplies for Interfaces
? Instrumentation for use on the go
? Amplifiers for Hi-Fi Headphones
? Providing power to data converters