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NCP1596AONN/a47avai1.5A Buck Regulator


NCP1596A ,1.5A Buck RegulatorELECTRICAL CHARACTERISTICS(V = 5.0 V, V = 1.2 V, T = 25°C for typical value, −40°C ≤ T ≤ 85°C for m ..
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NCP1596A
1.5A Buck Regulator
NCP1596A
1.5 A, 1.5 MHz Current
Mode PWM Buck Down
Converter

The NCP1596A is a current mode PWM buck converter with
integrated power switch. It can provide up to 1.5 A output current with
high conversion efficiency. High frequency PWM control scheme can
provide a low output ripple noise. Thus, it allows the usage of small
size passive components to reduce the board space. In a low load
condition, the controller will automatically change to PFM mode
which provides a higher efficiency at low load. Additionally, the
device includes soft−start, thermal shutdown with hysteresis,
cycle−by−cycle current limit, and short circuit protection. This device
is available in a compact 3x3 DFN package.
Features
High Efficiency up to 90%, 1 A @ 3.3 V, 75% @ 1.2 V Fully Internal Compensation Low Output Voltage Ripple, 20 mV Typical ±1.5% Reference Voltage High PWM Switching Frequency, 1.5 MHz Automatic PWM / PFM Switchover at Light Load Built−in 1 ms Digital Soft Start Cycle−by−cycle Current Limit Thermal Shutdown with Hysteresis Internal UVLO Protection Ext. Adjustable Output Voltage Low Profile and Minimum External Components Designed for use with Ceramic Capacitor Compact 3x3 DFN Package These are Pb−Free Devices
Typical Applications
Hard Disk Drives USB Power Device Wireless and DSL Modems
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