1 Setup and Configuration

The Building Block Solutions – Automotive LDOs Board is fully assembled and tested to evaluate and demonstrate the features of the MCP1722, MAQ5283, MCP1781, MCP1826S, MCP1825S, MAQ5300, MCP1726, MIC5233 and MCP1893 low dropout linear regulators. For proper evaluation, this board requires an external laboratory power supply, multimeter and load.

Table 1-1. Building Block Solutions – Automotive LDOs: Sub-Modules Main Parameters and Features
Module’s NameModule’s Input Voltage RangeModule’s Output VoltageModule’s Maximum Output CurrentSpecial Features
BBS1: MCP1722 Dual Output High Voltage LDO11V – 24V

OUT1: 10V (Fixed)

OUT2: 3.3V (Fixed)

OUT1: 50 mA

OUT2: 50 mA

•Power Good Pins

•Enable Pin

•Short-circuit Current Foldback Protection

•Undervoltage Lockout (UVLO)

BBS2: MAQ5283 High Input Voltage LDO6V – 100V3V (Adjustable)20 mA

•High PSRR

•Undervoltage Lockout (UVLO)

BBS3: MCP1781 High Voltage LDO6V – 48V5V (Adjustable)80 mA

•Short-circuit Current Foldback Protection

•Enable Pin

•Undervoltage Lockout (UVLO)

BBS4: MCP1826S High Current LDO 5.5V – 6V5V (Fixed)1A•Undervoltage Lockout (UVLO)
BBS5: MCP1825S Low Voltage LDO 2.1V – 5V1.8V (Fixed)500 mA•Undervoltage Lockout (UVLO)
BBS6: MAQ5300 Very Low Dropout Linear Regulator 3.5V – 5.5V3.3V (Fixed)300 mA

•Very Low Dropout Voltage

•Enable Pin

BBS7: MCP1726 High Current LDO 3.8V – 4.5V3.3V (Adjustable)1A

•Enable Pin

•Power Good Pin

BBS8: MIC5233 High Voltage LDO3.5V – 12V1.8V (Fixed)50 mA

•Enable Pin

•Reverse Battery Protection

•Reverse Leakage Protection

BBS9: MCP1793 High Voltage LDO6.2V – 24V5V (Fixed)100 mA

•Enable Pin

•Short-circuit Current Foldback Protection

•Undervoltage Lockout (UVLO)