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MAX8791B

更新时间： 2024-11-21 11:14:31

品牌	Logo	应用领域
美信 - MAXIM		驱动器
页数	文件大小	规格书
12页	219K
描述
Single-Phase, Synchronous MOSFET Drivers

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MAX8791B 数据手册

19-0628; Rev 2; 1/10

Single-Phase, Synchronous MOSFET Drivers

/MAX8791B

General Description

Features

The MAX8791/MAX8791B are single-phase, synchro-

nous, noninverting MOSFET drivers. The MAX8791/

MAX8791B are intended to work with controller ICs like

the MAX8736 or MAX8786, in multiphase notebook

CPU core regulators.

Single-Phase, Synchronous MOSFET Drivers

0.5Ω Low-Side On-Resistance

0.7Ω High-Side On-Resistance

8ns Propagation Delay

The regulators can either step down directly from the

battery voltage to create the core voltage, or step down

from the main system supply. The single-stage conver-

sion method allows the highest possible efficiency, while

the 2-stage conversion at higher switching frequency

provides the minimum possible physical size.

15ns Minimum Guaranteed Dead Time

Integrated Boost “Diode”

2V to 24V Input Voltage Range

Selectable Pulse-Skipping Mode

Low-Profile TQFN Package

The low-side drivers are optimized to drive 3nF capaci-

tive loads with 4ns/8ns typical fall/rise times, and the

high-side driver with 8ns/10ns typical fall/rise times.

Adaptive dead-time control prevents shoot-through cur-

rents and maximizes converter efficiency.

The MAX8791/MAX8791B are available in a small, lead-

free, 8-pin, 3mm x 3mm TQFN package.

Ordering Information

Applications

Notebooks/Desktops/Servers

CPU Core Power Supplies

PART

TEMP RANGE

PIN-PACKAGE

MAX8791GTA+

MAX8791BGTA+

-40^oC to +105^oC

8 TQFN-EP*

Multiphase Step-Down Converters

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

*EP = Exposed pad.

Typical Operating Circuit

Pin Configuration

INPUT (V )*

5V TO 24V

TOP VIEW

PWM

MAX8791

MAX8791B

BST

SKIP

(1.45V

AT 20A)

MAX8791

MAX8791B

PWM

SKIP

OUT

GND

+5V BIAS

SUPPLY

GND

TQFN

3mm × 3mm

PAD

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

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与MAX8791B相关器件

型号	品牌	获取价格	描述	数据表
MAX8791BGTA+	MAXIM	获取价格	Single-Phase, Synchronous MOSFET Drivers
MAX8791GTA+	MAXIM	获取价格	Single-Phase, Synchronous MOSFET Drivers
MAX8791GTA+T	MAXIM	获取价格	Half Bridge Based MOSFET Driver,
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MAX8792ETD	MAXIM	获取价格	Single Quick-PWM Step-Down Controller with Dynamic REFIN
MAX8792ETD+	MAXIM	获取价格	暂无描述
MAX8792ETD+T	MAXIM	获取价格	Switching Controller, Current-mode, 3A, BICMOS, PDSO14, 3 X 3 MM, ROHS COMPLIANT, TDFN-14
MAX8792ETDT	MAXIM	获取价格	Single Quick-PWM Step-Down Controller with Dynamic REFIN
MAX8792EVKIT	MAXIM	获取价格	300kHz Switching Frequency