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LDO Regulators

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Toshiba compact package LDO regulators have characteristics of low-noise, high-output stability, etc. They match to the demand which are needed especially for analog circuits. Toshiba prepare LDO regulators lineup from the general-purpose type to an ultra-small package type. Moreover, we have also improved the drop-out characteristic sharply according to the new generation process.

Features

WCSP4E package

1. Ultra-small packages
Saves board space due to the use of WCSP and SDF4 packages

2. Low dropout voltage
Approximately 50% reduction from the previous process

3. Low noise
Ideal for radio-frequency (RF) and analog power supply applications

SDFN4 package

4. Fast load transient response
LDO regulators in all generations incorporate a circuit for fast load transient response.
Toshiba’s LDO regulators provide a regulated supply voltage even in the event of an abrupt change in output current.

5. Added functions
Provides overcurrent protection, automatic output discharge, thermal shutdown and inrush current limiting, making the new LDO regulators suitable for various applications

The New Generation Process Lineup

Improvement in electrical characteristics due to the use of a new process

Figure 1 Comparison of Voltage Dropout Performance Between 1.2-V LDO Regulators

The illustration of Comparison of Voltage Dropout Performance Between 1.2-V LDO Regulators

 

Figure 2 Load Transient Response Performance

The illustration of Load Transient Response Performance: TCR13AGADJ VOUT=0.9V

 

Series Output
current
Output
voltage
Features Overcurrent
Protection
Thermal
shutdown
Output
discharge
Package
TCR15AG 1.5 A 0.6 to 3.6 V
(variable voltage type)
0.65 to 3.6 V
(Fixing voltage type)
Low dropout
Low voltage output
High R.R
WCSP6F
WCSP6F
TCR13AGADJ 1.3 A 0.6 to 3.6 V
(variable voltage  type)
Low dropout
Low voltage output
High R.R
WCSP6F
WCSP6F
TCR5AM 500 mA 0.55 to 3.6 V Low dropout
Low voltage output
DFN5B
DFN5B
TCR2DG 200 mA 1.2 to 3.6 V Low noise
High R.R
WCSP4
WCSP4
TCR2EN 200 mA 1.0 to 3.6 V Standard SDFN4
SDFN4
TCR2EE 1.0 to 5.0 V ESV
ESV
(SOT-553)
TCR2EF 1.0 to 5.0 V SMV
SMV
(SOT-25)
TCR2LN 200 mA 0.8 to 3.6 V Low quiescent
Current
SDFN4
SDFN4
TCR2LE ESV
ESV
(SOT-553)
TCR2LF SMV
SMV
(SOT-25)
TCR3UG 300 mA 0.8 ~ 5.0 V

Low quiescent
Current

Fast load
transient response


(You can
select)
WCSP4F
WCSP4F
TCR3DM 300 mA 1.0 to 4.5 V Low dropout
Low inrush current
DFN4
DFN4
TCR3DG WCSP4E
WCSP4E
TCR3DF SMV
SMV
(SOT-25)
TCR4DG 420 mA 1.0 to 4.5 V Low dropout
Low inrush current
WCSP4E
WCSP4E

Uses

  • Mobile phones, tablet PCs, Note PCs, portable audio players, DSC, DVC, and other small mobile devices.

Ultra-small Package 1.3A LDO Regulator for Mobile Devices: TCR13AGADJ

WCSP6F package

Nowadays, wearable devices and part of IoT devices are also battery-operated. This is spurring the demand for small LDO regulators and load switch ICs with low power consumption to improve battery life.

1.3-A LDO regulator in industry’s smallest-class package for mobile applications: TCR13AGADJ

The TCR13AGADJ LDO regulator is suitable for a power supply regulation for a Wi-Fi® chipset for smartphones and tablets as well as for cameras, wireless modules, storage devices, set-top boxes and other mobile devices.

Due to the use of an external bias voltage pin (VBAT), the TCR13AGADJ exhibits industry’s lowest-class*1 voltage dropout*2 and therefore helps improve system power efficiency.

Features

  • Low dropout voltage
    VIN - VOUT = 92 mV (typical) @ 0.9 V output、VBIAS = 3.3 V, IOUT = 1.0 A
    VIN - VOUT = 9.2 mV (typical) @ 0.9 V output、VBIAS = 3.3 V, IOUT = 0.1 A
  • High ripple rejection
    R.R.(VIN) = 90 dB (typical) @ VBIAS = 5.5 V, VIN = VOUT + 1 V, IOUT = 10 mA, f = 1 kHz, VIN Ripple = 200 mVp-p
  • Fast load transient response
    ΔVOUT = -100 / +115 mV(typical) @ 0.01 A ⇔ 1 A
  • Variable output: Adjustable between 0.55 V and 3.6 V via an external resistor
  • Available in industry’s smallest-class*1 WCSP6F package measuring 0.8 mm x 1.2 mm (typical), with a thickness of 0.33 mm (maximum)

Circuit Example

The illustration of Circuit Example: TCR13AGADJ

Typical Characteristics

The illustration of Typical Characteristics of Ultra-small Package and Low-noise 200mA LDO Regulator for Mobile Devices: TCR2DG Series.

Low Drop-out Voltage and Low-noise 200mA LDO Regulators: TCR2EN / EE / EF Series

Single output 200 mA CMOS LDO regulators with a control terminal, that uses a newly developed micro CMOS process.
The voltage difference between the input and output features low drop-out characteristics of 160 mV (2.5 V output, IOUT = 150 mA). At the same time, these products achieve 35 µVrms (2.5 V output) low output noise voltage characteristics and high-speed load transient response characteristics of ΔVOUT= ± 55 mV (IOUT = 1 mA ⇔ 150 mA, COUT = 1.0 µF). In addition to overcurrent protection, output auto-discharge and other basic functions, these regulators can be recommended for a wide range of applications.
These products are available in an ultra-small (0.8 × 0.8 × 0.38 mm) SDFN4 package and the general-purpose SMV (2.9 × 2.8 × 1.1 mm) and ESV (1.6 × 1.6 × 0.55 mm) packages.

SDFN4 package

 

SMV ESV package

Features

  • Low drop-out voltage:
    VIN - VOUT = 160 mV (typ.) @ 2.5 V output, IOUT = 150 mA
    VIN - VOUT = 210 mV (typ.) @ 1.8 V output, IOUT = 150 mA
    VIN - VOUT = 490 mV (typ.) @ 1.0 V output, IOUT = 150 mA
  • Low output noise voltage:
    VNO = 35 µVrms (typ.) @ 2.5 V output, IOUT = 10mA, 10 Hz < f < 100kHz
  • Load transient response characteristics:
    ΔVOUT = ± 55 mV (typ.) @ IOUT = 1 mA ⇔ 150mA, COUT = 1.0 µF
  • Low bias current:
    IB = 35 µA (typ.) @ IOUT = 0 mA
  • High ripple removal rate:
    RR = 73 dB (typ.) @ 2.5 V output, IOUT = 10 mA, f = 1 kHz
  • Output voltage lineup:
    1.0 to 3.6 V (Fixed output type)
  • High output voltage accuracy: ± 1.0 % ( VOUT ≥ 1.8 V )
  • Built-in auto discharge function and pull-down control terminal connection
  • Ceramic capacitors (CIN = 0.1 µF, COUT = 1.0 µF) can be used

Circuit Example

The illustration of Circuit Example: TCR2EN / EE / EF Series

Use capacitors for input and output to ensure stable operation. (Ceramic capacitors can be used.)

Typical Characteristics

Drop-out voltage charasteristics ( Ta = 25 ℃ )

The illustration of Typical Drop-out voltage characteristics of LDO Regulators: TCR2EN/EE/EF Series.

Load transient response characteristics ( VIN = VOUT + 1 V、COUT = 1.0 µF、Ta = 25 ℃ )

The illustration of Typical load transient response characteristics of LDO Regulators: TCR2EN/EE/EF Series.

Low current consumption and low dropout voltage 200-mA LDO regulator: TCR2LN/LE/LF series

The illustration of Package: TCR2LN/LE/LF series

The TCR2LN/LE/LF series consists of single-output 200-mA LDO regulator ICs fabricated using the latest small-geometry analog CMOS IC process that features ultra-low current consumption and low dropout voltage.

The new series consumes 2 μA maximum, or 1/30th of the current consumed by the preceding TCR2E series.

The TCR2LN/LE/LF series provides a fixed output voltage of 0.8 V to 3.6 V and is available in the ultra-small SDFN4 package (measuring 0.8 mm × 0.8 mm) or general-purpose SOT-553 and S0T-25 packages. It is ideal for various mobile applications requiring long battery life such as wearable devices, smartphones, tablet PCs and portable game consoles.

Features

  • Ultra-low bias current: 2 μA maximum @ IOUT = 0 mA and Tj = -40°C to 85°C
  • Dropout voltage: 250 mV typical (@2.5-V output, IOUT = 150 mA) 
  • Available with an output voltage ranging from 0.8 V to 3.6 V (fixed output voltage)
  • Output voltage regulation: ±1.0 % (VOUT ≥ 1.8 V)
  • Automatic output discharge (The control pin is connected to a pull-down resistor.)
  • Allows use of small ceramic capacitors on the input and output lines (CIN = 0.1 µF, COUT = 1.0 µF)

Circuit Example

The illustration of Circuit Example: TCR2LN/LE/LF series

Typical Characteristics

The illustration of Typical Characteristics: TCR2LN/LE/LF series

Application Note for LDO regulator ICs.

Web Simulator (you can simulate the behaviors of LDO regulators.) More

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