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Low-Ripple 1.8V/1.6V Spread-Spectrum Switched Capacitor Step-Down Regulator


Package | PIN: YZR | 9
Temp: S (-30 to 85)
Carrier: Cut Tape
Qty Price
1-9 $1.09
10-24 $0.97
25-99 $0.90
100-249 $0.77
250-499 $0.71
500-749 $0.58
750-999 $0.46
1000+ $0.41


  • Low-Noise Spread Spectrum Operation
  • 1.8V/1.6V Selectable Output Voltage
  • 2% Output Voltage Regulation
  • > 75% Efficiency in 1.8V Mode
  • Very Low Output Ripple: 10mV @ 300mA
  • Output Currents up to 300mA
  • 2.5V to 5.5V Input Voltage Range
  • Shutdown Disconnects Load from VIN
  • 1.15MHz Switching Frequency
  • No Inductors…Small Solution Size
  • Short Circuit and Thermal Protection
  • 0.5mm pitch, DSBGA-9 (1.511 × 1.511mm × 0.6mm)

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Texas Instruments  LM2773TL/NOPB

The LM2773 is a switched capacitor step-down regulator that produces a selectable 1.8V or 1.6V output. It is capable of supplying loads up to 300mA. The LM2773 operates with an input voltage from 2.5V to 5.5V, accommodating 1-cell Li-Ion batteries and chargers.

The LM2773 utilizes a regulated charge pump with gains of 2/3x and 1x. It has very low ripple and noise on both the input and output due to its pre-regulated 1.15MHz (typ.) switching frequency and spread spectrum operation. When output currents are low, the LM2773 automatically switches to a low-ripple PFM regulation mode to maintain high efficiency over the entire load range.

The LM2773 is available in TI's 0.5mm pitch 9-bump DSBGA.