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標題: ZCC5160 Synchronous Step-Down 60V 3A V2.0 [打印本頁]

作者: 四維電子    時間: 2022-8-22 18:00
標題: ZCC5160 Synchronous Step-Down 60V 3A V2.0

Features

20-μA Quiescent current in regulation

Input voltage range: 4V-60V

Output voltage range: 1V-VIN

Integrated upper and lower power MOSFET
maximum current: 5A

Adjustable frequency range: 200KHz~2MHz

Automatic switching of CCM/DCM/PFM mode

Adjustable soft-start time and Output voltage
tracking capability

Automatically switched bypass linear power
supply

Provides ultra-low input and output dropout
voltage close to 100% duty cycle

Internal Compensation

Power-good flag

Dynamic Frequency Stretch Technology

Support large capacitive load start-up

Protection function: UVLO/OCP/SCP/OTP/OVP

Operating junction temperature range: -40℃ to
+125℃

All pins have ±2000V (HBM) ESD protection

ETSSOP 16-Pin Exposed Pad Package
Applications

Industrial power supply

Wide voltage input range power supply

Low ripple low noise power supply

Automotive electronic power supply
Figure. 1 Typical Application Circuit
Description
ZCC5160 is a step-down DC/DC regulator with an
internal switch, featuring SKIP control mode, which
combines low quiescent current with high switching
frequency to achieve high-efficiency regulation over a
wide range of load currents. SKIP mode uses a short
"burst" cycle to switch the inductor current through
the internal power MOSFET, followed by a sleep
cycle in which the power switch is turned off and the
load current is provided by the output capacitor. At
light loads, burst cycles are a small fraction of the
total cycle time, minimizing average supply current
and greatly improving efficiency at light loads.
ZCC5160 has a wide input voltage range of 4V-60V,
thus minimizing the need for external surge
suppression components. Making it the best choice
for wide input power range industrial and high cell
count battery pack applications. ZCC5160 is ideal for
use in the 48V automotive power bus range.
ZCC5160 features low-value 100mΩ high-side and
80mΩ low-side MOSFET that provide at least 3A
output current capability with excellent load and line
transient response.
Additional features include: soft-start, thermal
shutdown, UVLO undervoltage lockout, gate driver
undervoltage lockout, maximum duty cycle limit timer,
and current limit shutdown timer. It also integrates
output short-circuit protection, providing HICCUP
mode when the FB voltage is low to avoid
overheating during short-circuit.






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