1ch 150mA CMOS LDO Regulators - BH28PB1WHFVROHM's LDO regulators for portable devices have original CMOS processes are utilized for low consumption and high precision.ROHM's CMOS LDO regulators with auto power save function feature automatic switching in response to output current fluctuations in order to provide the optimal output. Power consumption is minimized by curtailing the current to only 2µA during standby. High-speed switching to the optimal current is automatically performed during operation. In addition, a soft start function is built in that mitigates inrush current to the output capacitor during startup. The ICs are available in a compact HVSOF5 package featuring a built-in heat sink.
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| * This product is a STANDARD grade product and not recommend for on-vehicle devices. | ||||
| Grade | Standard |
| Breakdown Voltage(Max.)[V] | 6.5 |
| ch | 1 |
| Vin(Min.)[V] | 1.7 |
| Vin(Max.)[V] | 5.5 |
| Vout (Typ.) [V] | 2.8 |
| Vout Precision | ±1.0%(High speed), -3.0% to +3.8%(Low Icc) |
| Iout(Max.)[A] | 0.15 |
| Circuit Current[mA] | 0.02 |
| Output Short Current[mA] | 50 |
| Shutdown Function | Yes |
| Thermal Shut-down | Yes |
| Over Current Protection | Yes |
| Over Voltage Protection | No |
| Discharge Function | Yes |
| Soft Start | No |
| I/O Voltage Difference (Typ.)[V] | 0.21(Io=0.1A) |
| Ripple Rejection [dB] | 60.0 |
| Load Regulation[mV] | 10(Io=10 to 100mA) |
| Input Capacitor[µF] | 0.47 |
| Output Capacitor[µF] | 0.47 |
| Operating Temperature (Min.)[°C] | -40 |
| Operating Temperature (Max.)[°C] | 85 |
- ・Automatic switching between low-consumption and high-speed modes
・Built-in rush current prevention circuit
・Low voltage 1.7V operation
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| PART NUMBER | Product Name | Package | Datasheet | Distribution Inventory |
|---|---|---|---|---|
| BH33PB1WHFV | 1ch 150mA CMOS LDO Regulators | HVSOF5 | Buy Sample | |
| BH15PB1WHFV | 1ch 150mA CMOS LDO Regulators | HVSOF5 | Buy Sample | |
| BH18PB1WHFV | 1ch 150mA CMOS LDO Regulators | HVSOF5 | Buy Sample | |
| BH30PB1WHFV | 1ch 150mA CMOS LDO Regulators | HVSOF5 | Buy Sample | |
| BH31PB1WHFV | 1ch 150mA CMOS LDO Regulators | HVSOF5 | Buy Sample | |
| BH12PB1WHFV | 1ch 150mA CMOS LDO Regulators | HVSOF5 | Buy Sample |
This application notes provide tables for each series so that it is easy to set the resistance value for the output voltage setting from various internal reference voltages VREF.
The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.
The basic terminal configuration of a linear regulator IC consists of four parts: input, output, GND, and feedback…
A linear regulator, also referred to as a "three-terminal regulator" or "dropper," is a power supply long known to many designers owning to its simple circuitry and ease of use...
Very important information such as maximum ratings, operating conditions and characteristic graphs are described in the table.
A linear regulator integrated circuit (IC) is a DC-to-DC buck converter system that reduces a DC supply from higher voltage level to a lower voltage level...
Low drop-out (LDO) regulators developed back in the age when large-capacitance multi-layer ceramic capacitors (hereinafter, MLCCs) were uncommon cause a phase delay, leading to oscillation when connected to a low-ESR capacitor like an MLCC...
The loss in linear regulators increases as the difference between the input and output voltages increases. Since most of the loss is converted to heat, a very large amount of heat may be generated in some conditions...
When a linear regulator IC is turned ON, the electric charge is stored in the output capacitor and the output voltage increases up to the specified value.
This application note proposes a circuit using an output ceramic capacitor that allows a stable phase compensation.
This application note introduces a method for easily measuring the phase margin with a Frequency Response Analyzer (FRA) made by NF Corporation.
Provides some hints on how to connect LDOs in parallel.
For ICs