MAX77505
MAX77505 is 4.6A Switching Current Low IQ Buck Converter manufactured by Analog Devices.
Description
The MAX77505 is a low-quiescent current (800n A typ), high-efficiency hysteretic buck converter operating from a 2.5V to 16V input voltage range. The device offers high efficiency over the entire load range. Hence, it is ideal for either a primary battery or four alkaline batterypowered applications, which require long standby/idling time with short working time, such as asset tracking and door-lock devices.
A resistor (RSEL) selects one of thirty preset output voltages between 0.8V and 5.5V. The device has input undervoltage lockout, cycle-by-cycle switch current limit, and thermal shutdown to protect the system and the device itself. The device is available in a 10-lead FC2QFN package (2.0mm x 2.0mm x 0.55mm).
Applications
- 2-3 Cell Li+ Battery Applications
- 4-Cell Alkaline Battery Applications
- Io T, Wearable Devices
- Smart Meter, Door Locks, Asset Trackers, etc.
Benefits and Features
- Input Voltage: 2.5V to 16V
- Output Voltage: 0.8V to 5.5V
- Long Battery Life
- 70n A Shutdown Current
- 800n A Ultra-Low Quiescent Current (IQ)
- 86% Efficiency at 100µA Load at 7.6VIN, 3.3VOUT
- 95% Peak Efficiency at 7.6VIN, 3.3VOUT
- POKB Output (Open-Drain)
- SEL Pin for Output Voltage Selection
- Protections Features
- Cycle-by-Cycle Inductor Peak Current Limit
- Short Circuit, Undervoltage Lockout (UVLO), and
Thermal Protection
- FC2QFN-10 Package (2.0mm x 2.0mm x 0.55mm)
Simplified Application Diagram
ENABLE 2.5V TO 16V DC SOURCE
RSE L 1%
IN CIN 10μF 25V X7R 080 5
VL CVL 2.2μF 6.3V X7R 04 02
LX OUTS
CBS T 0.2 2μF 25V X7R 040 2
L 1.5 μH
PGND
AGND
POKB
RPU 10 k
VOUT 0.8V TO...
