Datasheet > MAX15026

MAX15026

更新时间： 2024-09-27 14:58:23

品牌	Logo	应用领域
亚德诺 - ADI		控制器
页数	文件大小	规格书
23页	1533K
描述
低成本、小尺寸、能够工作在4.5V至28V宽电压范围的DC-DC同步buck控制器

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中文翻译

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Low-Cost, Small, 4.5V to 28V Wide Operating

Range, DC-DC Synchronous Buck Controller

MAX15026

General Description

Features

● 4.5V to 28V or 5V ±10% Input Supply Range

The MAX15026 synchronous step-down controller oper-

ates from a 4.5V to 28V input voltage range and gener-

ates an adjustable output voltage from 85% of the input

voltage down to 0.6V while supporting loads up to 25A.

The device allows monotonic startup into a prebiased

bus without discharging the output and features adaptive

internal digital soft-start.

● 0.6V to (0.85 x VIN) Adjustable Output

● Adjustable 200kHz to 2MHz Switching Frequency

● Ability to Start into a Prebiased Load

● Lossless, Cycle-by-Cycle Valley Mode Current

Limit with Adjustable, Temperature-Compensated

Threshold

The MAX15026 offers the ability to adjust the switching

frequency from 200kHz to 2MHz with an external resis-

tor. The MAX15026’s adaptive synchronous rectification

eliminates the need for an external freewheeling Schottky

diode. The device also utilizes the external low-side

MOSFET’s on-resistance as a current-sense element,

eliminating the need for a current-sense resistor. This pro-

tects the DC-DC components from damage during output

overloaded conditions or output shortcircuit faults without

requiring a current-sense resistor. Hiccup-mode current

limit reduces power dissipation during short-circuit condi-

tions. The MAX15026 includes a power-good output and

an enable input with precise turn-on/turn-off threshold,

which can be used for input supply monitoring and for

power sequencing.

● Sink-Mode Current-Limit Protection

● Adaptive Internal Digital Soft-Start

● ±1% Accurate Voltage Reference

● Internal Boost Diode

● Adaptive Synchronous Rectification Eliminates

External Freewheeling Schottky Diode

● Hiccup-Mode Short-Circuit Protection

● Thermal Shutdown

● Power-Good Output and Enable Input for Power

Sequencing

● ±5% Accurate Enable Input Threshold

● AEC-Q100 Qualified (MAX15026B)

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

14 TDFN-EP*

Additional protection features include sink-mode current

limit and thermal shutdown.

MAX15026BETD+

-40°C to +85°C

MAX15026BETD/V+T -40°C to +85°C

Sink-mode current limit prevents reverse inductor current

from reaching dangerous levels when the device is sink-

ing current from the output.

MAX15026CETD+

MAX15026BATD+

MAX15026CATD+

-40°C to +85°C

-40°C to +125°C

The MAX15026 is available in a space-saving and thermal-

ly enhanced 3mm x 3mm, 14-pin TDFN-EP package. The

MAX15026 operates over the extended -40°C to +85°C

and automotive -40°C to +125°C temperature ranges.

+Denotes a lead(Pb)-free/RoHS-compliant package.

*EP = Exposed pad. T = Tape and reel.

/V denotes an automotive qualified part.

Pin Conﬁguration

The MAX15026C is designed to provide additional margin

for break-before-make times.

TOP VIEW

The MAX15026B/MAX15026C provide a soft-stop feature

to ramp down the output voltage at turn-off.

14 DH

13 LX

ꢀ

PGOOD

BST

Applications

● Set-Top Boxes

● LCD TV Secondary Supplies

● Switches/Routers

● Power Modules

11 DL

MAX15026

LIM

DRV

COMP

GND

*EP

● DSP Power Supplies

● Points-of-Load Regulators

ꢁDꢂꢃ

ꢄꢅmm ꢆ ꢅmmꢇ

*EP = EXPOSED PAD.

19-4108; Rev 7; 4/22

One Analog Way, Wilmington, MA 01887 U.S.A.

Tel: 781.329.4700

12 3 4 5 6 7...23

中文翻译

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与MAX15026相关器件

型号	品牌	获取价格	描述	数据表
MAX15026_11	MAXIM	获取价格	Low-Cost, Small, 4.5V to 28V Wide Operating Range, DC-DC Synchronous Buck Controller
MAX15026_12	MAXIM	获取价格	Low-Cost, Small, 4.5V to 28V Wide Operating Range, DC-DC Synchronous Buck Controller
MAX15026B	MAXIM	获取价格	600kHz Switching Frequency
MAX15026BATD	MAXIM	获取价格	Low-Cost, Small, 4.5V to 28V Wide Operating Range, DC-DC Synchronous Buck Controller
MAX15026BATD+	MAXIM	获取价格	Low-Cost, Small, 4.5V to 28V Wide Operating Range, DC-DC Synchronous Buck Controller
MAX15026BATD+T	MAXIM	获取价格	Switching Controller, Voltage-mode, 2400kHz Switching Freq-Max, BICMOS, PDSO14, 3 X 3 MM,
MAX15026BETD	MAXIM	获取价格	Low-Cost, Small, 4.5V to 28V Wide Operating Range, DC-DC Synchronous Buck Controller
MAX15026BETD/V T	MAXIM	获取价格	Low-Cost, Small, 4.5V to 28V Wide Operating Range, DC-DC Synchronous Buck Controller
MAX15026BETD/V+T	MAXIM	获取价格	Low-Cost, Small, 4.5V to 28V Wide Operating Range, DC-DC Synchronous Buck Controller
MAX15026BETD+	MAXIM	获取价格	Low-Cost, Small, 4.5V to 28V Wide Operating Range, DC-DC Synchronous Buck Controller

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