4.3-5.5V 2.5A 1ch LDO - BD3506FThe BD3506F is an ultra-low dropout linear regulator for chipset that can achieve ultra-low voltage input to ultra-low voltage output. By using N-MOS FET for built-in power transistor, the regulator can be used at ultra-low I / O voltage difference up to voltage difference generated by ON resistor (RON = 120 m?). Because by reducing the I / O voltage difference, large current (Iomax = 2.5A) output is achieved and conversion loss can be reduced, switching power supply can be replaced. BD3506F does not need any choke coil, diode for rectification and power transistor which are required for switching power supply, total cost of the set can be reduced and compact size can be achieved for the set. Using external resistors, optional output from 0.65V to 2.5V can be set. In addition, since voltage output start-up time can be adjusted by using the NRCS terminal, it is possible to meet the power supply sequence of the set.
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| * This product is a STANDARD grade product and not recommend for on-vehicle devices. | ||||
| Grade | Standard |
| Breakdown Voltage(Max.)[V] | 7.0 |
| ch | 1 |
| Vin(Min.)[V] | 4.3 |
| Vin(Max.)[V] | 5.5 |
| Vin 2ch[V] | 1.2 to Vcc-1 |
| Vout (Typ.) [V] | 0.65 to 2.5 |
| Vout Precision | ±1.0 |
| Iout(Max.)[A] | 2.5 |
| Thermal Shut-down | Recover |
| Over Current Protection | Yes |
| Under Voltage Lock Out | Yes |
| Soft Start | Variable |
| Operating Temperature (Min.)[°C] | -10 |
| Operating Temperature (Max.)[°C] | 100 |
- ・Built-in high-accuracy reference voltage circuit (0.65V±1%)
・Built-in VCC low input maloperation prevention circuit (Vcc = 4.15V)
・Reduced rush current by NRCS
・Built-in ultra-low on-resistor (120 mΩ typ) Nch Power MOSFET
・Built-in current limiting circuit (2.5A min)
・Built-in thermal shutdown circuit
・Output variable type (0.65-2.5V)
・Adoption of SOP8 package (BD3506F) : 5.0 x 6.2 x 1.5 (mm)
| PART NUMBER | Product Name | Package | Datasheet | Distribution Inventory |
|---|---|---|---|---|
| BD80C0AFPS-C | For Automotive 1A, 8.0V Output LDO Regulator | TO252S-3 | inquiry | |
| BD00FD0WHFP | 35V Voltage Resistance 2A LDO Regulators | HRP5 | inquiry | |
| BD15FD0WHFP | 35V Voltage Resistance 2A LDO Regulators | HRP5 | inquiry | |
| BD18FD0WHFP | 35V Voltage Resistance 2A LDO Regulators | HRP5 | inquiry | |
| BD25FD0WHFP | 35V Voltage Resistance 2A LDO Regulators | HRP5 | inquiry | |
| BD30FD0WHFP | 35V Voltage Resistance 2A LDO Regulators | HRP5 | inquiry |
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.
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Very important information such as maximum ratings, operating conditions and characteristic graphs are described in the table.
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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