The MAX8526/MAX8527/MAX8528 low-dropout linear regulators operate from input voltages as low as 1.425V and are able to deliver up to 2A of continuous output current with a maximum dropout voltage of only 200mV. The output voltage can be set from 0.5V to (VIN - 0.2V) and is 1.4% accurate over load and line variations, from 0°C to +85°C
The MAX8526, MAX8527, and MAX8528 are low‑dropout (LDO) linear regulators that operate from input voltages as low as 1.425 V and can deliver up to 2 A of continuous output current. They feature a typical dropout voltage of 200 mV at full load, an internal P‑channel MOSFET pass transistor, soft‑start, and protection functions such as short‑circuit and thermal‑overload protection.
The devices are supplied in a 14‑pin TSSOP package with an exposed thermal pad. They include optional Power‑OK (POK) output on the MAX8527 and Power‑On‑Reset (POR) output on the MAX8528, and the output voltage is set via a voltage‑divider on the FB pin. Detailed electrical characteristics, pin descriptions, and typical application circuits are provided.
| Input voltage range | 1.425 V to 3.6 V |
|---|---|
| Maximum output current | 2 A |
| Dropout voltage (2 A) | 200 mV |
| Quiescent supply current (typical) | 440 µA |
| Shutdown supply current | <50 µA |
| Short‑circuit current limit | 4 A |
| Thermal‑shutdown threshold | 165 °C (turn‑off) |
| Package | 14‑pin TSSOP with exposed pad |
The regulators can deliver up to 2 A of continuous output current.
The typical dropout voltage is 200 mV when delivering 2 A.
The MAX8527 version provides a Power‑OK (POK) output that goes high when the output voltage is within ±10 % of its nominal value.
The output voltage is set by connecting two external resistors as a voltage divider to the FB pin; the equation Vout = VFB × (1 + R1/R2) is used, with VFB typically 0.5 V.