Micrel Ripple Blocker

Realize unmatched PSRR performance for noise-sensitive applications

Micrel's Ripple Blocker™ technology provides a simple, space saving and low cost solution for reducing power supply noise. The technology offers substantial noise reduction due to about a 60dB PSRR performance up to 10MHz. The Ripple Blocker™ family of devices is easy to use and improves the signal-to-noise ratio in a number of leading edge noise sensitive applications.

Ideal for use in:


Smart Phone Cameras, RF Power

Tablet PC/Notebook Computers

Automotive and Industrial

MIC94300 - 200mA Switch with Ripple Blocker™ Technology

  • 1.8V to 3.6V input voltage range
  • Active noise rejection over a wide frequency band: >60dB from 40kHz to 5MHz
  • Rated to 200mA output current
  • Current-limit and thermal-limit protected
  • Ultra-small 0.88mm x 0.88mm 4-ball CSP
  • 1.2mm x 1.6mm, 4-pin Thin MLF®
  • Logic-controlled enable pin
  • −40°C to +125°C junction temperature range
Typical Application:
Digi-Key P/N Micrel P/N Description Datasheet
576-4011-1-ND MIC94300YMT TR IC LOAD SWITCH 200MA 4MLF View
576-4128-1-ND MIC94300YCS TR IC LOAD SWITCH 200MA 4WLCSP View
MIC94300YMT EV-ND MIC94300YMT EV BOARD EVAL FOR MIC94300MT View
MIC94300YCS EV-ND MIC94300YCS EV BOARD EVAL FOR MIC94300CS View

MIC94305 - 500mA Switch with Ripple Blocker™ Technology

  • 1.8V to 3.6V input voltage range
  • Active noise rejection over a wide frequency band: >60dB from 40kHz to 5MHz
  • Rated to 500mA output current
  • Current-limit and thermal-limit protected
  • Ultra-small 0.84mm x 1.32mm 6-ball CSP
  • 1.6mm x 1.6mm, 6-pin Thin DFN
  • Logic-controlled enable pin
  • −40°C to +125°C junction temperature range
Typical Application:
Digi-Key P/N Micrel P/N Description Datasheet
576-4160-1-ND MIC94305YCS TR IC LOAD SWITCH 500MA 6WLSP View
576-4161-1-ND MIC94305YMT T5 IC LOAD SWITCH 500MA 6TDFN View
576-4162-1-ND MIC94305YMT TR IC LOAD SWITCH 500MA 6TDFN View

MIC94310 - 200mA LDO with Ripple Blocker™ Technology

  • 1.8V to 3.6V input voltage range
  • Active noise rejection over a wide frequency band: >50dB from 10Hz to 10MHz at 200mA load
  • Rated to 200mA output current
  • Fixed output voltages
  • Current-limit and thermal-limit protected
  • Ultra-small 0.88mm x 0.88mm 4-ball CSP
  • 1.2mm x 1.6mm, 4-pin Thin MLF®
  • Logic-controlled enable pin
  • −40°C to +125°C junction temperature range
Typical Application:
Digi-Key P/N Micrel P/N Description Datasheet
576-4012-1-ND MIC94310-GYMT TR IC REG LDO 1.8V .2A 4MLF View
576-4122-1-ND MIC94310-DYMT T5 IC REG LDO 1.85V .2A 4TMLF View
576-4123-1-ND MIC94310-DYMT TR IC REG LDO 1.85V .2A 4TMLF View
576-4124-1-ND MIC94310-JYMT TR IC REG LDO 2.5V .2A 4TMLF View
576-4125-1-ND MIC94310-MYMT TR IC REG LDO 2.8V .2A 4TMLF View
576-4126-1-ND MIC94310-NYMT TR IC REG LDO 2.85V .2A 4TMLF View
576-4199-1-ND MIC94310-DYCS TR IC REG LDO 1.85V .2A 4CSP View
576-4200-1-ND MIC94310-GYCS TR IC REG LDO 1.85V .2A 4CSP View
576-4201-1-ND MIC94310-JYCS TR IC REG LDO 2.5V .2A 4CSP View
576-4202-1-ND MIC94310-MYCS TR IC REG LDO 2.8V .2A 4CSP View
576-4203-1-ND MIC94310-NYCS TR IC REG LDO 2.85V .2A 4CSP View
MIC94310-PYCS CT-ND MIC94310-PYCS TR IC REG LDO 3V .2A 4CSP View
MIC94310-SYCS CT-ND MIC94310-SYCS TR IC REG LDO 3.3V .2A 4CSP View
MIC94310-GYCS EV-ND MIC94310-GYCS EV BOARD EVAL FOR MIC94310-GYCS View
MIC94310-GYMT EV-ND MIC94310-GYMT EV BOARD EVAL FOR MIC94310-GYMT View

MIC94325/45/55 - 500mA LDO with Ripple Blocker™ Technology

  • 1.8V to 3.6V input voltage range
  • Active noise rejection over a wide frequency band: >50dB from 10Hz to 5MHz at 500mA load
  • Rated to 500mA output current
  • Fixed and adjustable output voltages
  • Optional output auto-discharge when disabled
  • Current-limit and thermal-limit protected
  • Ultra-small 0.84mm x 1.32mm 6-ball CSP
  • 1.6mm x 1.6mm, 6-pin Thin DFN
  • Logic-controlled enable pin
  • −40°C to +125°C junction temperature range
Typical Application:
Digi-Key P/N Micrel P/N Description Datasheet
576-4163-1-ND MIC94325YMT T5 IC REG LDO ADJ .5A 6TDFN View
576-4164-1-ND MIC94325YMT TR IC REG LDO ADJ .5A 6TDFN View
576-4238-1-ND MIC94345-4YMT T5 IC REG LDO 1.2V .5A 6TDFN View
576-4239-1-ND MIC94345-4YMT TR IC REG LDO 1.2V .5A 6TDFN View
576-4240-1-ND MIC94345-GYMT T5 IC REG LDO 1.8V .5A 6TDFN View
576-4241-1-ND MIC94345-GYMT TR IC REG LDO 1.8V .5A 6TDFN View
576-4242-1-ND MIC94345-MYMT T5 IC REG LDO 2.8V .5A 6TDFN View
576-4243-1-ND MIC94345-MYMT TR IC REG LDO 2.8V .5A 6TDFN View
576-4244-1-ND MIC94345-SYMT T5 IC REG LDO 3.3V .5A 6TDFN View
576-4245-1-ND MIC94345-SYMT TR IC REG LDO 3.3V .5A 6TDFN View
576-4165-1-ND MIC94355-GYCS TR IC REG LDO 1.8V .5A 6WLCSP View
576-4166-1-ND MIC94355-GYMT T5 IC REG LDO 1.8V .5A 6TDFN View
576-4167-1-ND MIC94355-GYMT TR IC REG LDO 1.8V .5A 6TDFN View

Videos:

Micrel's Ripple Blocker Technology - Dr. Chris Gator explains Micrel's Ripple Blocker technology, and provides a demonstration of how this noise-attenuating software works

Understanding Ripple Blocker - Micrel's Carlos Huerta explains Ripple Blocker, a power supply noise attenuator from Micrel. This product reduces or eliminates power supply noise that can interfere with all kinds of electronic devices from cellphones to GPS units, from medical scanning devices to cameras.

Micrel TechZones:

Lighting Solutions Power Solutions Wireless Solutions

Related Materials:

Ripple Blocker Product Brief Ripple Blocker™ for Power Supply Output Noise Attenuation "Silence is Golden" Ripple Blocker Technical Article