MCHPMCP1703AT-3302E/MBVAO
Overview
The MCP1703AT-3302E/MBVAO is a high-voltage, low quiescent current (Iq) linear regulator designed for automotive and battery-powered applications. It delivers a fixed 3.3V output at up to 250mA from an input voltage as high as 16V, making it suitable for systems directly connected to multi-cell battery packs or automotive power rails. The AEC-Q100 qualification ensures reliability in harsh environments, while the 2uA typical quiescent current helps extend battery life in standby modes.
Why Choose This Part
This regulator offers an exceptionally low 2uA quiescent current, significantly reducing power consumption during inactive periods. It features built-in overtemperature and short-circuit protection, and is stable with small ceramic capacitors (1uF to 22uF), which saves PCB space and reduces BOM cost.
Applications
Key Specifications
Getting Started
When designing with this LDO, place a 1.0uF ceramic capacitor as close as possible to the input and output pins for stability. Ensure the SOT-89 package (TO-243AA) has adequate copper pour for thermal dissipation, especially when operating near the 16V maximum input voltage at high load currents.
MCP1703 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Package | Temp Range | Voltage Dropout (Max) | Output V | Stock |
|---|---|---|---|---|---|
| MCP1703AT-3302E/MBVAO (this part) | TO-243AA | -40degC ~ 125degC .. | 0.525V | 3.3V | 555 |
| MCP1703A-5002E/DBVAO | 4-261 | -40degC ~ 125degC | 0.65V | 5V | 1,858 |
| MCP1703AT-3302E/CBVAO | 3-236 | -40degC ~ 125degC .. | 0.725V | 3.3V | 2,447 |
Also Consider
