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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
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Is there a low-current LDO with an input voltage greater than 5 V?
We have released the low-current TCR1HF Series. This series is compatible with high-input-voltage (~ 36 V).
Main product specifications are as follows.
| Part number | TCR1HF18B | TCR1HF33B | TCR1HF50B | ||
|---|---|---|---|---|---|
| Package | Name | SOT-25 (SMV) | |||
| Size typ. (mm) | 2.8 × 2.9, t=1.1 | ||||
| Operating ranges | Input voltage VIN (V) | 4 to 36 | |||
| Operation temperature Topr (°C) | -40 to 125 | ||||
| Electrical characteristics (Unless otherwise specified, Tj=25°C) |
Output voltage VOUT typ. (V) | 1.8 | 3.3 | 5.0 | |
| Output voltage accuracy VOUT (%) |
IOUT=10mA | ±1 | |||
| Quiescent current IBON typ. (μA) |
IOUT=0mA | 1 | |||
| Stand-by current IB(OFF1) typ. (μA) |
VIN=4V | 0.24 | |||
| Load transient response ⊿VOUT typ. (mV) |
IOUT=0mA→10mA | -60 | |||
| IOUT=10mA→0mA | 50 | ||||
| Thermal shutdown threshold TSDH (°C) | Tj rising | 155 | |||
| Sample Check & Availability |  |
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An example application is shown below. 12 V or 24 V power supplies provide direct power to low-voltage appliances below 5 V.
Application Examples
Ultra-low current consumption solution in standby mode
Power can be supplied directly to the controller IC from a high-voltage source with low current dissipation.
Related Links
The following documents also contain related information.
Product Lists
Application Notes
- Basics of Low-Dropout (LDO) Regulator ICs (PDF:1.45MB)
- LDO Regulator Application to Power Supply Circuits for MCUs (PDF:2.62MB)
- Thermal Design to Maximize the Performance of LDO Regulators (PDF:768KB)
- Simple Guide to Improving Ripple Rejection Ratio of LDO Regulators (PDF:1.30MB)
- Mechanism of LDO Oscillation and Reducing the Susceptibility to Oscillation (PDF:1.43MB)
- LDO Regulators Glossary (PDF:388KB)
- Power Efficiency Optimization and Application Circuits Using Dual-power-supply LDO Regulators (PDF:824KB)
- Improving the Load Transient Response of LDOs (PDF1.24MB)
- LDO Regulator Application to Power Supply Circuits for Digital Cores of CMOS Image Sensors (PDF:2.50MB)
- LDO Regulator Application to Power Supplies for High-Frequency Circuits (PDF:3.55MB)
