ELM6M003SA5V input 1.5A synchronous step-down DC/DC converter module

ELM6M003SA is a complete 1.5A, synchronous step-down DC/DC convertor module with built-in switching regulator, output capacitor and Inductor for small dimension application. ELM6M003SA uses constant-on-time (COT) control architecture which simplifies loop compensation and offers excellent load transient response. ELM6M003SA consumes extremely low 15µA quiescent current hence achieves superior light load efficiency. The high gain error amplifier in the control loop provides excellent load and line regulation. Proprietary adaptive on-time helps ELM6M003SA to achieve nearly constant switching frequency across load range. ELM6M003SA can operate with input voltage from 2.5V to 6V and provide output range from 0.6V to input level, thanks to 100% duty cycle operation. ELM6M003SA has cycle-by-cycle current limit and hiccup mode to protect over-load or short circuit fault conditions.
ELM6M003SA is available in compact and low profile 7 leads LGA 3mm × 3mm packages.

Internal 1msec soft-start
Cycle-by-cycle current limit protection
Over-load and short circuit hiccup mode
Open drain power good indication
Output discharging function
Thermal shutdown protection
Built-in inductor and
output capacitors
1.5A continuous, 2A peak
Input range2.5V to 6.0V
Minimum output voltage0.6V±2%
Built-in power switches100mΩ/80mΩ
Switching Frequency2.5MHz
Low quiescent current 15µA
Accurate enable threshold1.21V
Efficiency More than 90%
Maximum duty cycle100%
Solid-state and hard disk drives
USB-TypeC earphone
Smartphone and tablets
WiFi RF modules
DC/DC micro modules

Recommended Operating Conditions

Input voltageVin+2.5 to +6.0V
Output voltageVout+0.6 to VinV
Operating temperature rangeTop-40 to +85°C

Absolute Maximum Ratings

Input voltageVin-0.3 to +6.5V
The other pinsVother-0.3 to +6.5V
Power dissipationPd1.0W
Storage temperature rangeTstg-65 to +150°C
Junction temperature rangeTj-40 to +150°C
Thermal resistanceθja125°C/W
Thermal resistanceθjc65°C/W

Block diagram