Toshiba’s New Small Surface Mount LDO Regulators Lower Power Consumption and Bring Longer Operating Times to Battery-driven Devices

IRVINE, Calif. — (BUSINESS WIRE) — March 20, 2019Toshiba America Electronic Components, Inc. (“Toshiba”) today announced two new series of small surface mount LDO regulators for application in the power supply of mobile devices, imaging and audio-visual products. The 40 regulators in the TCR5BM series support a dropout voltage as low as 100mV and a maximum output current of 500mA, and 40 more in the TCR8BM series extend support to 170mV and 800mA. The TCR5BM and TCR8BM series are both available with VOUT as low as 0.8V, or as high as 3.6V.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20190320005126/en/

(Graphic: Business Wire)

(Graphic: Business Wire)

Both series are suited to applications that include power supply for MCU, RF devices, and camera CMOS sensors in mobile devices or imaging and audio-visual equipment, which increasingly use lower voltages around 1V.

Mass production started progressively from January 2019 and shipments begin today.

By using a low on-resistance N-channel MOSFET fabricated with the latest generation process and external bias voltage, both series have cut dropout voltage, a cause of power loss, to about 67% that of Toshiba’s current products[1], the lowest in the industry[2].

In addition, with a 98 dB (typ.) ripple rejection ratio, the new products deliver stable operation resistant to high frequency noise from the external environment and DC-DC converters, both causes of malfunction. They also deliver a fast load transient response that prevents malfunctioning due to swift switching of IC operation modes.

Quiescent current is about 50% lower than other high current LDO regulators in the market[2], realizing lower power consumption by devices and longer operating times for battery-driven devices.

Both series are housed in the small surface mount 1.2x1.2mm DFN5B[3] package, which is excellent for space constrained designs. The TCR5BM series supports up to 500mA and the TCR8BM series supports up to 800mA, allowing users to design products more easily.

Applications
Mobile devices, image & audio visual equipment

  • CMOS sensor power supply
  • MCU power supply
  • RF power supply

Features

  • Low dropout voltage:
    VDO = 100 mV (typ.) (TCR5BM series)
    VDO = 170 mV (typ.) (TCR8BM series)
  • High ripple rejection ratio: R.R. = 98 dB (typ.)
  • Fast load response characteristics ensure stable operation when the operation mode changes
 

Main Specifications

 
Part number   Package  

Output

 

voltage

 

lineup

  Electrical characteristics (@T j =25 ℃)
Name  

Size

 

typ.

 

(mm)

Quiescent

 

current

 

I BIAS(ON)

 

typ.

 

(μA)

 

Dropout voltage

 

V DO typ.

 

Ripple

 

rejection

 

ratio

 

R.R.

 

typ.

 

(dB)

          (mV)  

@I OUT

 

(mA)

 

TCR5BM

 

series

DFN5B 1.2x1.2

0.8 to 3.6 V

 

and 36 voltage

  19   100   500   98

TCR8BM

 

series

     

0.8 to 3.6 V

 

and 36 voltage

  20   170   800   98
Stock Check & Purchase  

TCR5BM series Buy Online

 

TCR8BM series Buy Online

 

 

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