Description

The PC1997-16Q420CMX is a low-voltage input DC-DC converter control IC, designed to configure a three-output (step-up × 2, inverted output × 1) DC-DC converter at an input voltage of 3, 3.3, or 5 V. The IC can be used to control DC-DC converters using an AC adapter for input.

Specifications and features

Specifications:

• Product Category: IC Chips
• Model: PC1997-16Q420CMX
• Low Supply Voltage: 2.5 V (MIN.)
• Operating Voltage Range: 2.5 to 20 V (breakdown voltage: 30 V)

• Can control three output channels
• Timer latch circuit for short-circuit protection
• Ceramic capacitor with low capacitance (0.1 µF) can be used for short-circuit protection
• Dead times of channels 2 (step-up) and 3 (inverted output) can be set from external resistors
• Dead time of channel 1 (step-up) is internally fixed to 85 %
• Soft start of each channel can be set independently
• Each channel can be turned ON/OFF independently

Application Scenarios

The PC1997-16Q420CMX is ideal for use in low voltage input DC-DC converter applications, where a three-output DC-DC converter configuration is required. It is commonly used in electronic devices such as laptops and portable electronic devices as a power management solution.

Comparison

• Wide operating voltage range
• Timer-latch circuit for short-circuit protection
• Dead times of channels 2 and 3 can be set from external resistors
• Soft start of each channel can be set independently
• Each channel can be turned ON/OFF independently

• None reported