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Toshiba's New Small Surface Mount LDO Regulators Lower Power Consumption and Bring Longer Operating Times to Battery-driven Devices
[March 20, 2019]

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

Toshiba America Electronic Components, Inc. ("Toshiba (News - Alert)") 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:

(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.

Mobile devices, image & audio visual equipment

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


  • 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  






  Electrical characteristics (@Tj=25 ?)










IBIAS(ON (News - Alert))






Dropout voltage


VDO typ.





















DFN5B 1.2x1.2

0.8 to 3.6 V


and 36 voltage

  19   100   500   98





0.8 to 3.6 V


and 36 voltage

  20   170   800   98
Stock Check & Purchase  

TCR5BM series Buy Online


TCR8BM series Buy Online




Product Lineup


No.   Output





  Part number   No.   Output





  Part number
    TCR5BM series   TCR8BM series       TCR5BM series   TCR8BM series
1   0.8   TCR5BM08A*   TCR8BM08A*   21   1.9   TCR5BM19A*   TCR8BM19A*
2   0.85   TCR5BM085A*   TCR8BM085A*   22   2.0   TCR5BM20A*   TCR8BM20A*
3   0.9   TCR5BM09A*   TCR8BM09A*   23   2.1   TCR5BM21A*   TCR8BM21A*
4   0.95   TCR5BM095A*   TCR8BM095A*   24   2.2   TCR5BM22A*   TCR8BM22A*
5   1.0   TCR5BM10   TCR8BM10   25   2.3   TCR5BM23A*   TCR8BM23A*
6   1.0   TCR5BM10A*   TCR8BM10A*   26   2.4   TCR5BM24A*   TCR8BM24A*
7   1.05   TCR5BM105   TCR8BM105   27   2.5   TCR5BM25A*   TCR8BM25A*
8   1.05   TCR5BM105A*   TCR8BM105A*   28   2.6   TCR5BM26A*   TCR8BM26A*
9   1.1   TCR5BM11   TCR8BM11   29   2.7   TCR5BM27A*   TCR8BM27A*
10   1.1   TCR5BM11A*   TCR8BM11A*   30   2.8   TCR5BM28A*   TCR8BM28A*
11   1.15   TCR5BM115A*   TCR8BM115A*   31   2.85   TCR5BM285A*   TCR8BM285A*
12   1.2   TCR5BM12   TCR8BM12   32   2.9   TCR5BM29A*   TCR8BM29A*
13   1.2   TCR5BM12A*   TCR8BM12A*   33   2.95   TCR5BM295A*   TCR8BM295A*
14   1.25   TCR5BM125A*   TCR8BM125A*   34   3.0   TCR5BM30A*   TCR8BM30A*
15   1.3   TCR5BM13A*   TCR8BM13A*   35   3.1   TCR5BM31A*   TCR8BM31A*
16   1.4   TCR5BM14A*   TCR8BM14A*   36   3.2   TCR5BM32A*   TCR8BM32A*
17   1.5   TCR5BM15A*   TCR8BM15A*   37   3.3   TCR5BM33A*   TCR8BM33A*
18   1.6   TCR5BM16A*   TCR8BM16A*   38   3.4   TCR5BM34A*   TCR8BM34A*
19   1.7   TCR5BM17A*   TCR8BM17A*   39   3.5   TCR5BM35A*   TCR8BM35A*
20   1.8   TCR5BM18A*   TCR8BM18A*   40   3.6   TCR5BM36A*   TCR8BM36A*

Part numbers marked with an asterisk have a built-in under-voltage lockout function.

[1] In comparison with Toshiba's current TCR5AM series.
[2] Toshiba survey conducted March 20, 2019
[3] DFN5B package: 1.2×1.2 mm (typ.)

Follow the link below for more on Toshiba's LDO Regulators line-up.

Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.

About Toshiba America Electronic Components, Inc.
Toshiba America Electronic Components, Inc. (TAEC) an independent operating company owned by Toshiba America, Inc., is the US based electronic components business of Toshiba Electronic Devices and Storage Corporation. TAEC offers consumers and businesses a wide variety of innovative hard disk drive (HDD) products plus semiconductor solutions for automotive, industrial, IoT, motion control, telecoms, networking, consumer and white goods applications. The company's broad portfolio encompasses integrated wireless ICs, power semiconductors, microcontrollers, optical semiconductors, ASICs, ASSPs and discrete devices ranging from diodes to logic ICs. For more company information visit TAEC's web site at

© 2019 Toshiba America Electronic Components, Inc. All rights reserved. Information in this press release, including product pricing and specifications, content of services and contact information, is current and believed to be accurate on the date of the announcement, but is subject to change without prior notice.

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