Datasheet > RTQ2536-QA

RTQ2536-QA

更新时间： 2024-02-16 20:18:26

品牌	Logo	应用领域
立锜 - RICHTEK		双倍数据速率
页数	文件大小	规格书
11页	206K
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中文翻译

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技术参数
数据手册

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RTQ2536-QA 技术参数

Status：	Active	Memory Supported：	DDRI;DDRII;DDRIII;DDRIV
Vin (min) (V)：	1	Vin (max) (V)：	3.5
VTT Output Tolerance (max) (+/- mV)：	30	Isource/Isink (max) (A)：	2
Standby Current (typ) (mA)：	0.5	Current Limit (typ) (A)：	2
Features：	Enable Input;OCP;Stable with Ceramic Capacitor	Package Type：	WDFN3x3-10S

RTQ2536-QA 数据手册

RTQ2536-QA

Functional Block Diagram

REFOUT

VIN

OTP

OCP

VCNTL

UVLO

EN_VTT

VOUT

PGND

VDDQSNS

OCP

SENSE

GND

Operation

The RTQ2536-QAis a linear sink/sourceDDR termination

regulator with current capability up to 2A. The RTQ2536-

QAbuilds in a high-sideN-MOSFET which provides current

sourcing and a low-sideN-MOSFET which provides current

sinking. All the control circuits are supplied by the power

VCNTL. In normal operation, the error amplifier OP adjusts

the gate driving voltage of the power MOSFET to achieve

SENSE voltage well tracking the VDDQSNS/2 voltage.

Thermal Protection

Both the high-side and low-side power MOSFETs will be

turned off when the junction temperature is higher than

typically 160°C, and be released to normal operation when

junction temperature falls below 135°C typically.

Power State Control

The input pins S3 and S5 of the RTQ2536-QA, provide

simple control of the power state. Table 1 describes S3/

S5 terminal logic state and corresponding state of

REFOUT/VOUT outputs. VOUT is turn-off and discharged

to GND in state S3. When both S5 and S3 pins are LOW,

the power state is set to S4/S5. In S4/S5 state, all the

outputs are turn-off and discharged toGND.

Both the source and sink currents are detected by the

internal sensing resistor, and the OCP function will work

to limit the current to a designed value when overload

happens. Furthermore, the current will be folded back to

be one half if VOUT is out of the power good window.

Buffer

This function provides REFOUT output equal to

VDDQSNS/2 with 10mA source/sink current capability.

Control Logic

This block includes VCNTL UVLO, VDDQSNS UVLO and

Enable/Disable functions, and provides logic control to

the whole chip.

Table 1. S3 and S5 Control Table

STATE

REFOUT

VOUT

OFF (Discharge)

S4/S5

OFF (Discharge) OFF (Discharge)

is a registered trademark of Richtek Technology Corporation.

DSQ2536-QA-01 September 2018

www.richtek.com

1 234 5 6 7...11

中文翻译

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与RTQ2536-QA相关器件

型号	品牌	获取价格	描述	数据表
RTQ2537	RICHTEK	获取价格	4A, 6.5V, Ultra Low Noise, Ultra Low Dropout Linear Regulator
RTQ2538H	RICHTEK	获取价格	2A, 6.5V, Ultra-Low Noise, Ultra-Low Dropout Linear Regulator
RTQ2539A	RICHTEK	获取价格	3A, 6.5V, Ultra-Low Noise, Ultra-Low Dropout Linear Regulator
RTQ2539C	RICHTEK	获取价格	3A, 6.5V, Ultra-Low Noise, Ultra-Low Dropout Linear Regulator
RTQ2540H	RICHTEK	获取价格	4A, 6.5V, Ultra-Low Noise, Ultra-Low Dropout Linear Regulator
RTQ2551A	RICHTEK	获取价格	1A Ultra-Low Dropout Voltage LDO Regulators with Soft-Start
RTQ2551A-QA	RICHTEK	获取价格	1A Ultra-Low Dropout Voltage LDO Regulators with Soft-Start
RTQ2569-QA	RICHTEK	获取价格	36V, 2μA IQ, Peak 200mA, Low Dropout Voltage
RTQ-25V101MG10UQ-R2	TAIYO YUDEN	获取价格	FOR AUTOMOTIVE VERTICAL CHIP TYPE ALUMINUM ELECTROLYTIC CAPACITORS[RTQ]
RTQ-25V151MH10UQ-R2	TAIYO YUDEN	获取价格	FOR AUTOMOTIVE VERTICAL CHIP TYPE ALUMINUM ELECTROLYTIC CAPACITORS[RTQ]

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