Datasheet > RTQ2533W

RTQ2533W

更新时间： 2024-01-16 19:32:35

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
19页	505K
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中文翻译

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技术参数
数据手册

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RTQ2533W 技术参数

Status：	Active	Vin (min) (V)：	1.1
Vin (max) (V)：	6.5	Vout (min) (V)：	0.8
Vout (max) (V)：	5.5	Output Adj. Method：	Fixed;Resistor
Accuracy (+/- %)：	1	Iout (max) (mA)：	3000
Iq (typ) (uA)：	4300	Current Limit (typ) (mA)：
Vdropout @ rated current (typ) (mV)：	110 @ 3A	Cout (min) (uF)：
Cout Type：	Ceramic	Bias Rail：
Charge Pump：		Features：	Enable Input;Extra Low Noise;High PSRR;OCP;Power Good
Package Type：	VQFN3.5x3.5-20

RTQ2533W 数据手册

RTQ2533W

Functional Block Diagram

VOUT

VIN

Charge

Pump

Active

Discharge

Current

Limit

Gate

Driver

Thermal

Protection

PGOOD

0.72V

UVLO

Enable

Control

Logic

UVLO

SNS

Bandgap

Reference

32R 16R

INR/SS

NR/SS GND

50mV 100mV 200mV 400mV 800mV 1.6V

Operation

The RTQ2533W operates with single supply input ranging

from 1.1V to 6.5V and capable to deliver up to 3A current

to the output. The device features high PSRR and low

noise provides a clean supply to the application.

If not used, connect EN to the largest capacitance on the

input as close as possible to prevent voltage droops on

the VIN line from triggering the enable circuit.

VOUT Programming Pins

A low-noise reference and error amplifier are included to

reduce device noise. TheNR/SS capacitor filters the noise

from the reference and feed-forward capacitor filters the

noise from the error amplifier. The high power-supply

rejection ratio (PSRR) of the RTQ2533W minimizes the

coupling of input supply noise to the output.

The built-in matched feedback resistor network of the

RTQ2533W can set the output voltage. The output voltage

can be programmed from 0.8V to 3.95V in 50mV steps

when tying these programming pins (Pins 5 to 11) to

ground. Tying any of the VOUT programming pins to SNS

can lower the value of the upper resistor divider. Hence

the VOUT programming resolution is increased.

Enable and Shutdown

The RTQ2533W provides an EN pin, as an external chip

enable control, to enable or disable the device. V_ENbelow

0.5 V turns the regulator off and enters the shutdown mode,

while V_ENabove 1.1V turns the regulator on. When the

regulator is shutdown, the ground current is reduced to a

maximum of 25μA. The enable circuitry has hysteresis

(typically 50mV) for use with relatively slowly ramping

analog signals.

Programmable Soft-Start

The noise-reduction capacitor (C_NR/SS) accomplishes the

dual purpose of both noise-reduction and programming

the soft-start ramp time during turn-on. When EN and

UVLO exceed the respective threshold voltage, the

RTQ2533W activates a quick-start circuit to charge the

noise reduction capacitor (C_NR/SS) and then the output

voltage ramps up.

is a registered trademark of Richtek Technology Corporation.

DSQ2533W-00 April 2019

www.richtek.com

1 234 5 6 7...19

中文翻译

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与RTQ2533W相关器件

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RTQ2536-QA	RICHTEK	获取价格	暂无描述
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]

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