MAX660CSA+

Voltage - Output (Min/Fixed):	-Vin, 2Vin
Base Part Number:	MAX660
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	10kHz, 80kHz
Current - Output:	100mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	1.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Charge Pump
Output Configuration:	Positive or Negative
Function:	Ratiometric
Part Status:	Active
Packaging:	Tube

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MAX660CSA+ Application Field and Working Principle

The MAX660CSA+ is a DC DC switching regulator IC from Maxim Integrated that fits in the PMIC (Power Management IC) category and Voltage Regulators – DC DC Switching Regulator subcategory. It is specifically intended for use in telecommunication, computer peripherals, automotive, and industrial applications.The MAX660CSA+ offers a wide variety of useful features, such as input voltage range from 4.9V to 37V, fixed frequency at 150 or 250 kilohertz, and output current capability up to 2.5A. It also includes short circuit protection (SCP) and a wide operating temperature range of -40°C to +85°C.In addition, the MAX660CSA+ offers a unique external synchronization feature which enables synchronization to an external clock even when switching at the same frequency. This circuit element can be a very useful part of frequency-dependent designs.The main features of the MAX660CSA+ are its simple design, low-noise operation, as well as its flexibility and range of uses. The design and operation of the MAX660CSA+ are based on a synchronous buck-converter structure with an external MOSFET.The power switch of the MAX660CSA+ is controlled by the internal PAM logic. The internal PAM logic controls the MOSFET\'s switching cycles and on/off duty cycle for high conversion efficiency.The MAX660CSA+ requires two external components for operation—an inductor and output capacitor. The inductor should be designed to meet the desired output voltage and current parameters. The accepted value range of inductors for the MAX660CSA+ is 1.5-5.5 mH. The output capacitor should have a low ESR and high capacitance value and should conform to the voltage and current requirements of the system.The MAX660CSA+ IC can be programmed via the disable (DIS) pin. This pin acts like an Enable pin for the regulator, and it is driven to the high (1) state after all rail voltages reach their regulation voltage level. Also, the MAX660CSA+ offers programmable soft-start.The MAX660CSA+ also supports the use of a low-side sampling current monitor (CMS). This function allows the designer to monitor and optimize the current limit threshold based on specific application requirements. This current limit monitoring feature is especially useful when used in combination with the programmable Soft-start as it helps to prevent secondary circuit malfunctions due to high inrush and voltage spikes.Overall, the MAX660CSA+ is a powerful, versatile and efficient integrated circuit that can be used in a wide range of applications. Its PAM logic control, external synchronization, and programmable features make it an ideal regulator solution, while its robustness and operability in extreme temperatures ensure reliable operation.

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