DDR TOTAL POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER WITH 1.5A LDO CXSD62120 integrates a synchronous buck PWM controller to generate VDDQ, a sourcing and sinking LDO linear regulator to generate VTT

发布时间：2020-04-06 09:43:38 浏览次数：702 作者：嘉泰姆

摘要：DDR TOTAL POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER WITH 1.5A LDO CXSD62120 integrates a synchronous buck PWM controller to generate VDDQ, a sourcing and sinking LDO linear regulator to generate VTT

The CXSD62120 integrates a synchronous buck PWM controller to generate VDDQ, a sourcing and sinking LDO linear regulator to generate VTT. It provides a complete power supply for DDR2, DDR3, DDR3L and DDR4 memory system. It offers the lowest total solution cost in system where space is at a premium. The CXSD62120 provides excellent transient response and accurate DC voltage output in PFM Mode. In Pulse Frequency Mode (PFM), the CXSD62120 provides very high efficiency over light to heavy loads with loading-modulated switching frequencies. The CXSD62120 is equipped with accurate current-limit, output under-voltage, and output over-voltage protections. A Power-On- Reset function monitors the voltage on VCC prevents wrong operation during power on. The LDO is designed to provide a regulated voltage with bi-directional output current for DDR-SDRAM termination. The device integrates two power transistors to source or sink current up to 1.5A. It also incorporates current-limit and thermal shutdown protection. An internal resistor divider is used to provide a half voltage of VDDQSNS for VTTREF and VTT Voltage. The VTT output voltage is only requiring 20mF of ceramic output capacitance for stability and fast transient response. The S3 and S5 pins provide the sleep state for VTT (S3 state) and suspend state (S4/S5 state) for device, when S5 and S3 are both pulled low the device provides the soft-off for VTT and VTTREF.The CXSD62120 is available in 3mmx3mm 20-pin QFN and 3mmx3mm 16-pin TQFN packages.

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Buck Controller (VDDQ) pIk嘉泰姆

· High Input Voltages Range from 3V to 28V Input Power pIk嘉泰姆

· Provide 1.8V (DDR2), 1.5V (DDR3), 1.35V (DDR3L), 1.2V(DDR4) or Adjustable Output Voltage from 0. 5V to 2V. pIk嘉泰姆

- ±1% Accuracy Over-Temperature pIk嘉泰姆

· Build in VREF Voltage 1.8V ±1% Accuracy over Temperature pIk嘉泰姆

· Integrated MOSFET Drivers pIk嘉泰姆

· Integrated Bootstrap Forward P-CH MOSFET pIk嘉泰姆

· Excellent Line and Load Transient Responses pIk嘉泰姆

· PFM Mode for Increased Light Load Efficiency pIk嘉泰姆

· Selectable 500kHz / 670kHz Switching Frequencies pIk嘉泰姆

· Integrated MOSFET Drivers and Bootstrap Diode pIk嘉泰姆

· S3 and S5 Pins Control The Device in S0, S3, or S4/S5 State pIk嘉泰姆

· Power Good Monitoring pIk嘉泰姆

· 50% Under-Voltage Protection (UVP) pIk嘉泰姆

· 125% Over-Voltage Protection (OVP) pIk嘉泰姆

· Adjustable Current-Limit Protection pIk嘉泰姆

- Using Sense Low-Side MOSFET RDS(ON) pIk嘉泰姆

· QFN-20 3mmx3mm Package (QFN-20) and QFN-16 3mmx3mm Thin Package (TQFN-16) pIk嘉泰姆

· Lead Free Available (RoHS Compliant) +1.5A LDO Section (VTT) pIk嘉泰姆

· Souring or Sinking Current up to 1.5A pIk嘉泰姆

· Fast Transient Response for Output Voltage pIk嘉泰姆

· Output Ceramic Capacitors Support at Least 10mF MLCC pIk嘉泰姆

· VTT and VTTREF Track at Half the VDDQSNS by Internal Divider pIk嘉泰姆

· ±20mV Accuracy for VTT and VTTREF pIk嘉泰姆

· Independent Over-Current-Limit (OCL) pIk嘉泰姆

· Thermal Shutdown ProtectionpIk嘉泰姆

应用范围 返回TOPpIk嘉泰姆

· DDR2,DDR3,DDR3LandDDR4MemoryPowerSup- plies pIk嘉泰姆

· SSTL-2 SSTL-18 and HSTL TerminationpIk嘉泰姆

技术规格书（产品PDF) 返回TOP pIk嘉泰姆

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CXSD62107pIk嘉泰姆	TQFN3x3-16pIk嘉泰姆	BuckpIk嘉泰姆	COTpIk嘉泰姆	1pIk嘉泰姆	1pIk嘉泰姆	20pIk嘉泰姆	1.8pIk嘉泰姆	28pIk嘉泰姆	0.75pIk嘉泰姆	5pIk嘉泰姆	400pIk嘉泰姆
CXSD62108pIk嘉泰姆	QFN3.5x3.5-14pIk嘉泰姆 \|TQFN3x3-16pIk嘉泰姆	BuckpIk嘉泰姆	COTpIk嘉泰姆	1pIk嘉泰姆	1pIk嘉泰姆	20pIk嘉泰姆	1.8pIk嘉泰姆	28pIk嘉泰姆	0.75pIk嘉泰姆	5pIk嘉泰姆	400pIk嘉泰姆
CXSD62109pIk嘉泰姆	TQFN3x3-16pIk嘉泰姆	BuckpIk嘉泰姆	COTpIk嘉泰姆	1pIk嘉泰姆	2pIk嘉泰姆	20pIk嘉泰姆	1.8pIk嘉泰姆	28pIk嘉泰姆	0.75pIk嘉泰姆	5pIk嘉泰姆	400pIk嘉泰姆
CXSD62110pIk嘉泰姆	QFN3x3-20pIk嘉泰姆 TQFN3x3-16pIk嘉泰姆	BuckpIk嘉泰姆	COTpIk嘉泰姆	1pIk嘉泰姆	2pIk嘉泰姆	20pIk嘉泰姆	3pIk嘉泰姆	28pIk嘉泰姆	1.8\|1.5\|0.5pIk嘉泰姆	5pIk嘉泰姆	740pIk嘉泰姆
CXSD62111pIk嘉泰姆	TQFN4x4-24pIk嘉泰姆 \|QFN3x3-20pIk嘉泰姆	BuckpIk嘉泰姆	CMpIk嘉泰姆	1pIk嘉泰姆	2pIk嘉泰姆	15pIk嘉泰姆	5pIk嘉泰姆	28pIk嘉泰姆	0.5pIk嘉泰姆	NpIk嘉泰姆	3000pIk嘉泰姆
CXSD62112pIk嘉泰姆	TDFN3x3-10pIk嘉泰姆	BuckpIk嘉泰姆	COTpIk嘉泰姆	1pIk嘉泰姆	1pIk嘉泰姆	20pIk嘉泰姆	1.8pIk嘉泰姆	28pIk嘉泰姆	0.5pIk嘉泰姆	5pIk嘉泰姆	250pIk嘉泰姆
CXSD62113\|CpIk嘉泰姆	TQFN3x3-20pIk嘉泰姆	BuckpIk嘉泰姆	COTpIk嘉泰姆	1pIk嘉泰姆	2pIk嘉泰姆	15pIk嘉泰姆	6pIk嘉泰姆	25pIk嘉泰姆	2pIk嘉泰姆	NpIk嘉泰姆	550pIk嘉泰姆
CXSD62113EpIk嘉泰姆	TQFN 3x3 20pIk嘉泰姆	BuckpIk嘉泰姆	COTpIk嘉泰姆	2pIk嘉泰姆	2pIk嘉泰姆	11pIk嘉泰姆	6pIk嘉泰姆	25pIk嘉泰姆	2pIk嘉泰姆	NpIk嘉泰姆	550pIk嘉泰姆
CXSD62114pIk嘉泰姆	TQFN3x3-20pIk嘉泰姆	BuckpIk嘉泰姆	COTpIk嘉泰姆	2pIk嘉泰姆	2pIk嘉泰姆	11pIk嘉泰姆	5.5pIk嘉泰姆	25pIk嘉泰姆	2pIk嘉泰姆	NpIk嘉泰姆	280pIk嘉泰姆
CXSD62115pIk嘉泰姆	QFN4x4-24pIk嘉泰姆	MultiphasepIk嘉泰姆	VMpIk嘉泰姆	2pIk嘉泰姆	1pIk嘉泰姆	60pIk嘉泰姆	3.1pIk嘉泰姆	13.2pIk嘉泰姆	0.85pIk嘉泰姆	12pIk嘉泰姆	5000pIk嘉泰姆
CXSD62116A\|B\|CpIk嘉泰姆	SOP-8PpIk嘉泰姆	BuckpIk嘉泰姆	VMpIk嘉泰姆	1pIk嘉泰姆	1pIk嘉泰姆	20pIk嘉泰姆	2.9pIk嘉泰姆	13.2pIk嘉泰姆	0.8pIk嘉泰姆	12pIk嘉泰姆	16000pIk嘉泰姆
CXSD62117pIk嘉泰姆	SOP-20pIk嘉泰姆	BuckpIk嘉泰姆	VMpIk嘉泰姆	2pIk嘉泰姆	2pIk嘉泰姆	30pIk嘉泰姆	10pIk嘉泰姆	13.2pIk嘉泰姆	1pIk嘉泰姆	12pIk嘉泰姆	5000pIk嘉泰姆
CXSD62118pIk嘉泰姆	TDFN3x3-10pIk嘉泰姆	BuckpIk嘉泰姆	COTpIk嘉泰姆	1pIk嘉泰姆	1pIk嘉泰姆	25pIk嘉泰姆	1.8pIk嘉泰姆	28pIk嘉泰姆	0.7pIk嘉泰姆	5pIk嘉泰姆	250pIk嘉泰姆
CXSD62119pIk嘉泰姆	TQFN3x3-20pIk嘉泰姆	BuckpIk嘉泰姆	COTpIk嘉泰姆	2pIk嘉泰姆	1pIk嘉泰姆	40pIk嘉泰姆	1.8pIk嘉泰姆	25pIk嘉泰姆	REFIN SettingpIk嘉泰姆	5pIk嘉泰姆	700pIk嘉泰姆
CXSD62120pIk嘉泰姆	QFN 3x3 20pIk嘉泰姆 TQFN 3x3 16pIk嘉泰姆	BuckpIk嘉泰姆	COTpIk嘉泰姆	1pIk嘉泰姆	2pIk嘉泰姆	20pIk嘉泰姆	3pIk嘉泰姆	28pIk嘉泰姆	1.8\|1.5 1.35\|1.2 0.5pIk嘉泰姆	5pIk嘉泰姆	800pIk嘉泰姆
CXSD62121ApIk嘉泰姆	TQFN3x3 20pIk嘉泰姆	BuckpIk嘉泰姆	COTpIk嘉泰姆	1pIk嘉泰姆	2pIk嘉泰姆	15pIk嘉泰姆	3pIk嘉泰姆	28pIk嘉泰姆	0.75pIk嘉泰姆	5pIk嘉泰姆	220pIk嘉泰姆
CXSD62121BpIk嘉泰姆	TQFN3x3 20pIk嘉泰姆	BuckpIk嘉泰姆	COTpIk嘉泰姆	1pIk嘉泰姆	2pIk嘉泰姆	15pIk嘉泰姆	3pIk嘉泰姆	28pIk嘉泰姆	0.75pIk嘉泰姆	5pIk嘉泰姆	220pIk嘉泰姆
CXSD62121pIk嘉泰姆	TQFN3x3-20pIk嘉泰姆	BuckpIk嘉泰姆	COTpIk嘉泰姆	1pIk嘉泰姆	2pIk嘉泰姆	20pIk嘉泰姆	3pIk嘉泰姆	28pIk嘉泰姆	0.75pIk嘉泰姆	5pIk嘉泰姆	180pIk嘉泰姆

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上一篇： Dual-Phase COT Buck PWM Controller with Dynamic Voltage CXSD62119 is a dual-phase PWM control IC which provides a precision voltage regulation system for advanced graphic card and motherboard applica

下一篇： 4A, 26V, 380kHz, Asynchronous Step-Down Converter CXSD62124 is a 4A, asynchronous, step-down converter with integrated 80mW P-channel MOSFET. The device, with current-mode control scheme, can convert

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DDR TOTAL POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER WITH 1.5A LDO CXSD62120 integrates a synchronous buck PWM controller to generate VDDQ, a sourcing and sinking LDO linear regulator to generate VTT

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DDR TOTAL POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER WITH 1.5A LDO CXSD62120 integrates a synchronous buck PWM controller to generate VDDQ, a sourcing and sinking LDO linear regulator to generate VTT

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相关芯片选择指南 返回TOP 更多同类产品......

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