LM2775 Switched Capacitor 5V Boost Converter | TI.com

LM2775 (ACTIVE)

Switched Capacitor 5V Boost Converter

Switched Capacitor 5V Boost Converter - LM2775
Datasheet
 

Description

The LM2775 is a regulated switched-capacitor doubler that produces a low-noise output voltage. The LM2775 can supply up to 200 mA of output current over a 3.1-V to 5.5-V input range, as well as up to 125 mA of output current when the input voltage is as low as 2.7 V. At low output currents, the LM2775 can reduce its quiescent current by operating in a pulse frequency modulation (PFM) mode. PFM mode can be enabled or disabled by driving the PFM pin to high or low. Additionally, when the LM2775 is in shutdown, the user can chose to have the output voltage pulled to GND or left in a high impedance state by setting the OUTDIS pin high or low.

The LM2775 has been placed in TI’s 8-pin WSON, a package with excellent thermal properties that keeps the part from overheating under almost all rated operating conditions.

Features

  • 2.7-V to 5.5-V Input Range
  • Fixed 5-V Output
  • 200-mA Output Current
  • Inductorless Solution: Only Requires 3 Small
    Ceramic Capacitors
  • Shutdown Disconnects Load from VIN
  • Current Limit and Thermal Protection
  • 2-MHz Switching Frequency
  • PFM Operation During Light Load Currents (PFM
    pin tied high)

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WEBENCH® Designer LM2775

  Min   Max Range
Vin  V 2.7 to 5.5V
Vout  V 5 to 5V
Iout  A ≤ 0.2A
Ambient Temp  °C -40 to 125°C

Parametrics

Compare all products in Charge pumps (inductorless) Email Download to Excel
Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Operating temperature range (C) Type Rating Package Group
LM2775 Order now 2.7     5.5     4.8     5.2     0.2     1     1700     2300     0.075     Load Disconnect     -40 to 85     Charge Pump     Catalog     WSON | 8