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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Thermal Resistance
BHxxPB1Series PCB Layout
Basics of Linear Regulators
Linear Regulator Specifications
Reverse Voltage Protection
Simple Test Method for Estimating the Stability of Linear Regulators
Thermal Calculation for Linear Regulator
Power Source ON/OFF Characteristics for Linear Regulator
BAxxCC0 Series Circuit Using a Ceramic Output Capacitor
Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)
For ICs
Table of resistance for output voltage setting on linear regulator Ics