Datasheet > RT5028

RT5028

更新时间： 2024-01-14 16:28:02

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
40页	611K
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中文翻译

获取价格

技术参数
数据手册

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RT5028 技术参数

Status：	Active	Vin (min) (V)：	3.15
Vin (max) (V)：	5.5	Number of Channels：	12
Number of Buck Converters：	4	Number of Boost Converters：
Number of Negative Outputs：		Number of LED Drivers：
Number of LDO Regulators：	6	Features：	Adjustable Frequency;Enable Input;OCP;Power Good;UVP
Package Type：	WQFN7x7-56

RT5028 数据手册

RT5028

Parameter

Buck1 to Buck4

Input Voltage

Symbol

Test Conditions

Min Typ Max

Unit

3.3

0.7

5.5

1.8

3.6

INB

Buck1 I C Programmable per step 25mV

Buck2 I C Programmable per step 25mV

Output Voltage

OUTB

Buck3 I C Programmable per step 50mV

Buck4 I C Programmable per step 50mV

Consumption

Current

AUTO Mode I

= 0mA, Each Buck

μA

VINB

OUT

= CCM

= 1mA

LOAD

3.6V

= 1.2V, V

OUT

Efficiency Peak

Eff

LOAD

As VOUTB1S to VOUTB4S ≥ 1V. −3

Output Voltage

Accuracy

3.1V < V < 5.5V,

1mA < I

%mV

OUTAcc

< I

OUT

MAX

As VOUTB1S to VOUTB4S < 1V. 30

= 1mA, C

= 1A, C

= 10μF, 2MHz

OUT

Output Voltage

Ripple

Rip

= 10μF, 2MHz

OUT

Output Voltage

Temperature

Coefficient

±100

-- ppm/°C

Switching

Frequency

I C Programmable

0.43

MHz

1MHz < f

−10

Switching

Frequency Accuracy

≤ 1MHz

−20

Suggest Inductor

2.2

4.4

μH

Buck

Buck1

Buck2

Buck3

Buck4

3.1

2.8

2.6

2.8

5.8

5.2

4.8

5.3

Peak Current Limit OCP

3.7

4.1

Under-Voltage

UVP

VOUTB1S to VOUTB4S < 0.66 x (V

Target)

OUT

Protection

Buck1

Buck2

Buck3

Buck4

2.4

Maximum Output

Current

MAX

1.6

2.0

Output Transient

Response

0.8A to 1.6A at 20μs, V

Buck1 and Buck2

= 1.2V

OUT

peak

−4

High-Side

On-Resistance

Low-Side

= 3.7V

150 250

110 160

mΩ

pon

non

On-Resistance

is a registered trademark of Richtek Technology Corporation.

DS5028-02 September 2016

www.richtek.com

1...4 5 678 9 10...40

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