The MAX710/MAX711 is a single-chip integrated step-up DC-DC converter with a linear regulator that provides step-up/down voltage conversion. They are optimized for battery applications where the input varies above and below the regulated output voltage. They have an input range from +1.8V to +11V. Typical efficiency when boosting battery inputs is 85%. The MAX710/MAX711 can be configured for minimum noise or optimum efficiency. Shutdown control turns off the part completely, disconnecting the input from the output (ISHDN = 0.2µA). Standby control turns off only the step-up converter and leaves the low-power linear regulator active (IQ = 7µA). The MAX710 has a preset 3.3V or 5V output voltage. The MAX711 has an adjustable output that can be set from +2.7V to +5.5V with two resistors. Both devices come in 16-pin narrow SO packages.
The MAX710 and MAX711 integrate a step‑up DC‑DC converter with a linear regulator to provide step‑up/down voltage conversion for battery‑powered devices. They accept an input voltage from +1.8 V to +11 V and can deliver either a fixed 3.3 V/5 V output (MAX710) or an adjustable 2.7 V‑5.5 V output (MAX711). Typical efficiency when boosting a battery is about 85 %.
Both devices offer configurable modes for low‑noise or high‑efficiency operation via the N/E pin, and include shutdown and standby controls that reduce quiescent current to 0.2 µA and 7 µA respectively. The 16‑pin narrow SO package contains pins for power MOSFET drain, limit selection, feedback, and comparator functions, enabling flexible design integration.
| Input Voltage Range | +1.8 V to +11 V |
|---|---|
| MAX710 Output Voltage | Fixed 3.3 V or 5 V |
| MAX711 Output Voltage | Adjustable 2.7 V to 5.5 V |
| Typical Efficiency (boost mode) | 85 % |
| Shutdown Quiescent Current | 0.2 µA |
| Standby Quiescent Current | 7 µA |
| Maximum Output Current (5 V) | 250 mA at VIN = 1.8 V, 500 mA at VIN = 3.6 V |
Both devices operate from +1.8 V up to +11 V.
MAX710 provides a fixed 3.3 V or 5 V output, while MAX711 offers an adjustable output from 2.7 V to 5.5 V using two resistors.
The typical efficiency is about 85 %.