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Features: • Output Switch Current in Excess of 3.0 A• 3.4 A Peak Switch Current• Frequency is Adjustable from 50 kHz to 300 kHz• Operation from 2.5 V to 40 V Input• Externally Adjustable Operating Frequency• Precision 2% Reference for Accurate Output Voltage Con...

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SeekIC No. : 004433001 Detail

NCP3163: Features: • Output Switch Current in Excess of 3.0 A• 3.4 A Peak Switch Current• Frequency is Adjustable from 50 kHz to 300 kHz• Operation from 2.5 V to 40 V Input• Ext...

NCP3163 Data Sheet

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Part Number:: NCP3163
Supply Ability:: 5000

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Product Details

Description

Features:

• Output Switch Current in Excess of 3.0 A
• 3.4 A Peak Switch Current
• Frequency is Adjustable from 50 kHz to 300 kHz
• Operation from 2.5 V to 40 V Input
• Externally Adjustable Operating Frequency
• Precision 2% Reference for Accurate Output Voltage Control
• Driver with Bootstrap Capability for Increased Efficiency
• Cycle−by−Cycle Current Limiting
• Internal Thermal Shutdown Protection
• Low Voltage Indicator Output for Direct Microprocessor Interface
• Exposed Pad Power Package
• Low Standby Current
• This is a Pb−Free Device

Application

Figures 23 through 30 show the simplicity and flexibility of the NCP3163. Three main converter topologies are demonstrated with actual test data shown below each of the circuit diagrams. Figure 22 gives the relevant design equations for the key parameters. Additionally, a complete application design aid for the NCP3163 can be found at www.onsemi.com.

Pinout

Connection Diagram

Specifications

Rating	Symbol	Value	Unit
Power Supply Voltage	V_CC	0 to +40	V
Switch Collector Voltage Range	V_CSW	−1.0 to +40	V
Switch Emitter Voltage Range	V_ESW	−2.0 to +40	V
Switch Collector to Emitter Voltage	V_CESW	+40	V
Switch Current	I_SW	3.4
Driver Collector Voltage (Pin 8)	V_CC	−1.0 to +40	V
Driver Collector Current (Pin 8)	I_CC	150
Bootstrap Input Current Range	I_BST	−100 to +100
Current Sense Input Voltage Range	V_IPKSNS	(V_CC − 7.0) to (V_CC + 1.0)	V
Feedback and Timing Capacitor Input Voltage Range	V_in	−1.0 to +7.0	V
Low Voltage Indicator Output Voltage Range	V_CLVI	−1.0 to +40	V
Low Voltage Indicator Output Sink Current	I_CLVI	10	mA
Power Dissipation and Thermal Characteristics
Thermal Characteristics Thermal Resistance, Junction−to−Case Thermal Resistance, Junction−to−Air	R_JC R_JA	15 56	°C/W
Storage Temperature Range	T_stg	−65 to +150	°C
Maximum Junction Temperature	T_Jmax	+150	°C
Operating Ambient Temperature (Note 3) NCP3163PW NCP3163BPW	T_A	0 to +70 −40 to +85	°C

Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected.
1. This device series contains ESD protection and exceeds the following tests:
Human Body Model 1500 V per MIL−STD−883, Method 3015.
Machine Model Method 150 V.
2. This device contains latch−up protection and exceeds 100 mA per JEDEC Standard JESD78.
3. Maximum package power dissipation limits must be observed. Maximum Junction Temperature must not be exceeded.
4. The pins which are not defined may not be loaded by external signals.

Description

The NCP3163 Series is a performance enhancement to the popular MC33163 and MC34163 monolithic DC−DC converters. These devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. This controller was specifically designed to be incorporated in step−down, step−up, or voltage−inverting applications with a minimum number of external components. The NCP3163 comes in an exposed pad package which can greatly increase the power dissipation of the built in power switch.

NCP3163

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