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NXP Achieves Ultra-Low Output Voltage Ripple with 6-MHz DC/DC Converter


DC6M family offers high efficiency up to 95 percent in tiny WLCSP6 package

Eindhoven, Netherlands and Hamburg, Germany, - NXP Semiconductors N.V. (NASDAQ: NXPI) today announced its state-of-the-art DC6M DC/DC switching regulator family featuring a very high 6-MHz frequency, an ultra-low output voltage ripple performance of 7 mV, and high efficiency up to 95 percent. The DC6M family supports up to 650 mA supply current in a very small wafer-level chip-scale package (WLCSP6), measuring only 1.36 x 0.96 x 0.47 mm. With an input voltage range from 2.3 to 5.5 V, the new DC/DC converters are ideally suited for battery-driven portable devices such as smartphones, as well as other consumer devices where reliable, efficient power management is essential and space is limited.

With a typical output voltage ripple of only 7 mV, the DC6M family (including the DC6M4, DC6M5 and DC6M6) minimizes disturbances to the output voltage signal caused by the switching mechanism, thus enabling a stable signal, enhancing energy efficiency, and overcoming a common limitation of most other DC/DC converters today. In addition, the high switching frequency of 6 MHz allows the usage of SMD inductors as small as 470 nH in a flat 0805 package size (available with heights as small as 0.8 mm), further reducing the space required in the design. To illustrate, a typical smartphone application area occupied by a step-down converter and its surrounding components can be reduced by 40 percent when using a 6-MHz DC/DC converter, instead of a 3-MHz alternative. Further, the DC6M buck converter supports the ability to disable the device, which reduces the quiescent current down to 0.2 A.

DC/DC switching regulators offer built-in efficiency advantages over other voltage regulators. Providing best-in-class performance in a very flat package, our DC6M step-down regulators open exciting new possibilities for engineers in designing sub-systems with higher efficiency, cleaner signals and much smaller footprint whether they use the DC6M as a standalone or in combination with LDOs, said Frank Hildebrandt, international product marketing manager, standard linear product line, NXP Semiconductors.

The DC6M DC/DC switching regulators are the latest additions to NXPs high-quality DC power management products, including DC/DC converters, low-dropout (LDO) voltage regulators, and voltage references.

Key Features

The NXP DC6M4, DC6M5 and DC6M6 DC/DC step-down switching regulators provide the following features:

-High 6 MHz switching frequency, which allows the usage of very small inductors (470 nH)
-Availability in output currents of 425, 500 and 650 mA
-Output signal with very low disturbances; output ripple typically at 7 mV
-Very high efficiency of up to 95%; optimized for loads from 40 to 650 mA
-Ability to disable the device, which reduces the quiescent current down to 0.2 A
-Input voltage range from 2.3 to 5.5 V, and an output voltage range from 1.2 to 2.85 V, supporting requirements of battery-driven portable devices
-Very small WLCSP6 package (1.36 x 0.96 x 0.47 mm)
-High power dissipation of 800 mW
-Many additional options, including voltage switch; a forced PWM mode for Pulse Width Modulation (instead of automatic Pulse Frequency Modulation/PWM switch); or the SMIA standard (XSHUTDOWN/powergood) option


Qualification samples of the DC6M6 series (supporting 650 mA) are available immediately. Indicative pricing for 1,000 pieces is $0.65 USD.

-Leaflet on the NXP DC6M4/5/6 6-MHz DC/DC step-down converter:
-Product information on the DC6M6 series:
-NXPs standard linear portfolio:

About NXP Semiconductors

NXP Semiconductors N.V. (NASDAQ: NXPI) provides High Performance Mixed Signal and Standard Product solutions that leverage its leading RF, Analog, Power Management, Interface, Security and Digital Processing expertise. These innovations are used in a wide range of automotive, identification, wireless infrastructure, lighting, industrial, mobile, consumer and computing applications. A global semiconductor company with operations in more than 25 countries, NXP posted revenue of $4.2 billion in 2011. Additional information can be found by visiting

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