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LINEAR TECHNOLOGY  LTC1877EMS8#PBF  DC-DC Switching Buck (Step Down) Regulator, Adjustable, 2.65V-10Vin, 800mV-10Vout, 600mAout, MSOP-8

LINEAR TECHNOLOGY LTC1877EMS8#PBF
Manufacturer Part No:
LTC1877EMS8#PBF
Order Code:
1273536
Technical Datasheet:
See all Technical Docs

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Product Overview

The LTC1877EMS8#PBF is a high efficiency monolithic synchronous Step-down Regulator uses a constant-frequency, current mode architecture. Supply current during operation is only 10µA and drops to <1µA in shutdown. The 2.65 to 10V input voltage range makes it ideally suited for both single and dual Li-ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. Switching frequency is internally set at 550kHz, allowing the use of small surface mount inductors and capacitors. For noise sensitive applications the LTC1877 can be externally synchronized from 400 to 700kHz. Burst Mode® operation is inhibited during synchronization or when the SYNC/MODE pin is pulled low, preventing low frequency ripple from interfering with audio circuitry. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with 0.8V feedback reference voltage.
  • High efficiency up to 95%
  • Very low quiescent current (only 10µA during operation)
  • 550kHz Constant-frequency operation
  • No Schottky diode required
  • Low dropout operation (100% duty cycle)
  • Synchronizable from 400 to 700kHz
  • Selectable Burst Mode® operation or pulse-skipping mode
  • 0.8V Reference allows low output voltages
  • Shutdown mode draws <1µA supply current
  • ±2% Output voltage accuracy
  • Current mode control for excellent line and load transient response
  • Over-current and over-temperature protected

Product Information

Topology:
Buck (Step Down)
Input Voltage Min:
2.65V
Input Voltage Max:
10V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
MSOP
No. of Pins:
8Pins
Output Current:
600mA
Output Voltage Min:
800mV
Output Voltage Max:
10V
Switching Frequency:
605kHz
Operating Temperature Max:
85°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Communications & Networking
  • Consumer Electronics
  • Wireless
  • Computers & Computer Peripherals
  • Portable Devices
  • Power Management
  • Audio

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000091

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