AZ494C Series

Catalog

IC REG BUCK 5V 200MA DL 16SO

Part	Number of Outputs	Topology	Package / Case	Package / Case [x]	Package / Case [y]	Synchronous Rectifier	Frequency - Switching	Current - Output	Mounting Type	Function	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Voltage - Input (Min) [Min]	Output Configuration	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Output Type
Diodes Inc AZ494CMTR-G1	2	Buck	16-SOIC	0.154 in	3.9 mm		40 kHz	200 mA	Surface Mount	Step-Down	36 V	5 V	7 V	Positive	16-SO	85 °C	-40 °C	1.81 mOhm

Catalog

Key Features

• Stable 4.95V/5V Reference Voltage Trimmed to ±1.0% Accuracy

• Uncommitted Output TR for 200mA Sink or Source Current

• Single-End or Push-Pull Operation Selected by Output Control

• Internal Circuitry Prohibits Double Pulse at Either Output

• Complete PWM Control Circuit with Variable Duty Cycle

• On-Chip Oscillator with Master or Slave Operation

Description

The AZ494A/C is a voltage mode pulse width modulation switching regulator control circuit designed primarily for power supply control. The AZ494A/C consists of a reference voltage circuit, two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, and an output control circuit. The precision of voltage reference (VREF) is improved up to ± 1% through trimming and this provides a better output voltage regulation. The AZ494A/C provides for pushpull or single-ended output operation, which can be selected through the output control. The difference between AZ494A and AZ494C is that they have 4.95V and 5V reference voltage respectively.