MCP1702T-3302E/MB

A low dropout (LDO) regulator capable of delivering up to 250 mA with a quiescent current of only 2.0 μA (typical). Its input voltage range of 2.7V to 13.2V makes it ideal for applications powered by two or six AA/AAA cells, 9V alkaline batteries, and single or dual-cell lithium-ion batteries. With an input-to-output voltage differential of just 625 mV (typical), it can deliver 250 mA (VOUT = 2.8V). Output voltage tolerance is typically ±0.4% at +25°C, with a maximum of ±3% over the junction temperature operating range (−40°C to +125°C). Line regulation is typically ±0.1% at +25°C. Output voltage is adjustable from 1.2V to 5.0V. The LDO regulates stably with as little as a 1 μF output capacitor. Ceramic, tantalum, or aluminum electrolytic capacitors are all suitable for use as input and output capacitors. Current limiting and thermal shutdown circuits ensure a safe and reliable solution in any application. Available package options: SOT-23A, SOT-89-3, and TO-92.

Applications

• Battery-powered devices
• Battery-powered alarm circuits
• Smoke detectors
• CO₂ detectors
• Pagers and mobile phones
• Smart battery packs
• Low quiescent current reference voltage
• PDAs
• Digital cameras
• MCU power supply
• Solar-powered instruments
• Consumer products
• Battery-powered data acquisition instruments

Key features

• 2.0 μA quiescent current (typical)
• Input operating voltage range: 2.7V to 13.2V
• Output current 250 mA when output voltage ≥2.5V
• Output current 200 mA when output voltage <2.5V
• LDO dropout voltage: 625 mV (typical) at 250 mA (VOUT = 2.8V)
• Typical output voltage accuracy: 0.4%
• Standard output voltage options: 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.0V, and 5.0V
• Output voltage range: 1.2V to 5.5V in 0.1V increments (50 mV increments available on request)
• Stable operation with 1.0 μF to 22 μF external output capacitor
• Short-circuit protection
• Over-temperature protection