ROHM Semiconductor Low Quiescent Current Solutions
ROHM Low Quiescent Current Solutions increase the demand for smaller components that provide greater design flexibility and the necessary space for integrating features. These regulators achieve lower power consumption to prolong battery life. The low-quiescent-current regulators offer a maximum rated voltage of 50V, an output current ranging from 200mA to 500mA, and a Quiescent current as low as 6μA. These low-current-consuming products are ideal for compact battery-driven devices in applications like smartphones, IoT, wearables, and portable equipment.
The low quiescent-current regulators include various product types like switching voltage regulators, LDO voltage regulators, supervisory circuits, Power Management ICs (PMICs), and board mount temperature sensors. Most of these regulators are automotive graded and come in cut tape, MouseReel, and Reel package styles.
Features
- Low current consumption
- 180nA current consumption made utilizing proprietary Nano-Energy technology
- The built-in output current control circuit prevents damage to the IC by output short-circuiting
- The built-in thermal shutdown circuit prevents thermal damage to the IC if overloaded
- Quiescent current as low as 6μA
Applications
- IoT
- Portable equipment
- Wearables
- Smartphones
Associated Products
ROHM Semiconductor BD1020HFV Temperature Sensor IC
High-accuracy, 4µA low-quiescent current temperature sensor with analog output.
ROHM Semiconductor Automotive LDO Regulators & Voltage Trackers
AEC-Q100-qualified devices are ideal for automotive, consumer, and industrial applications.
ROHM Semiconductor Ultra-Low Iq Buck Converter
Features 180nA quiescent current and supports output current up to 500mA.
ROHM Semiconductor BD9901x DC/DC Converters
Ultra-low quiescent current step-down DC/DC converters deliver 3.3V and 5V voltage output.
Application Circuit
Quiescent Current vs Load Current
50V Rated LDO Type Linear Regulators System Diagram
BD42xx Regulators
The BD4269FJ-C, BD4269EFJ-C, and BD42754FP2-C regulators offer a rated voltage of 45V and an output current of 200mA to 500mA range. These power supply ICs integrate a reset circuit for monitoring power supply voltage on a single chip.
Application Circuit
Timing Chart
45V rated LDO type Linear Regulators System Diagram
Nano-Energy™ Technology
The Nano-Energy™ technology helps deliver low-current consumption of just 180nA, making it possible to increase battery drive time by 1.4x over conventional products. This contributes to longer battery life in electronic devices powered by coin-type batteries. The BD70522GUL ultra-low-current consumption buck power supply IC meets the growing demand in the IoT market to support 10-year battery life on a single coin-type battery.
BD70522GUL Specifications
PMIC Integrating Nano Energy™ Ultra-Low Current Consumption Technology
Efficiency vs Current
Videos
Additional Resource
| Part Number | Datasheet | Description | Output Voltage | Output Current | Quiescent Current | Output Type | Dropout Voltage - Max | PSRR / Ripple Rejection - Typ | Ib - Input Bias Current | Pd - Power Dissipation |
|---|---|---|---|---|---|---|---|---|---|---|
| BD4271HFP-CTR |  |
LDO Voltage Regulators 5.5-45V HRP7 12A LDO Regulator | 5 V | 550 mA | 75 uA | Fixed | 500 mV | 60 dB | ||
| BD42530FPJ-CE2 | |
Power Management Specialised - PMIC PMIC 250mA Output LDO Voltage Tracker, 3V~42V, 40A, 10mV Accuracy | 250 mA | |||||||
| BD99011EFV-ME2 | |
Switching Voltage Regulators 2A Low Iq Synch Buck DC/DC Conv | 5 V | 2 A | 22 uA | |||||
| BD42540FJ-CE2 | |
Supervisory Circuits 3-42V SOP-J8 12A LDO Regulator | 40 uA | |||||||
| BD99010EFV-ME2 | |
Switching Voltage Regulators 3.3Voutput 2A Low Iq DC/DC Buck Converter | 3.3 V | 2 A | 22 uA | |||||
| BD450M2WEFJ-CE2 | |
LDO Voltage Regulators 200mA 3.3V or 5.0V out LDO Reg | 5 V | 200 mA | 40 uA | Fixed | 350 mV | 65 dB | 30 uA | 750 mW |
| BD750L2EFJ-CE2 | |
LDO Voltage Regulators IC Pwr Linear Reg Single Output LDO | 5 V | 200 mA | 6 uA | Fixed | 700 mV | 60 dB | 15 uA | |
| BD433M2EFJ-CE2 | |
LDO Voltage Regulators 200mA 3.3V or 5.0V out LDO Reg | 3.3 V | 200 mA | 40 uA | Fixed | 450 mV | 65 dB | 30 uA | 750 mW |
| BD42530EFJ-CE2 | |
Power Management Specialised - PMIC 5.6-42V HTSOP-J8 16A LDO Regulator | 250 mA | |||||||
| BD450S5WFP-CE2 | |
LDO Voltage Regulators Automotive 500mA 5.0V, Fixed Output LDO Regulators Includes Enable Input | 5 V | 500 mA | 38 uA | Fixed | 500 mV | 60 dB |