Datasheet > MAX16922_10

MAX16922_10

更新时间： 2024-11-06 11:18:23

品牌	Logo	应用领域
美信 - MAXIM		转换器
页数	文件大小	规格书
17页	989K
描述
2.2MHz, Dual, Step-Down DC-DC Converters, Dual LDOs, and RESET

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MAX16922_10 数据手册

19-5039; Rev 1; 5/10

2.2MHz, Dual, Step-Down DC-DC

Converters, Dual LDOs, and RESET

MAX1692

General Description

Features

o 1.2A High-Efficiency 2.2MHz DC-DC Converter

The MAX16922 power-management integrated circuit

(PMIC) is designed for medium power-level automotive

applications and integrates multiple supplies in a small

footprint. The device includes one high-voltage step-

down converter (OUT1) and three low-voltage cascad-

ed DC-DC converters (OUT2, OUT3, OUT4). OUT1 and

OUT2 are step-down DC-DC converters, and OUT3/

OUT4 are linear regulators. The device also includes a

reset output (RESET) and a high-voltage-compatible

enable input (EN).

3.7V to 28V Operating Supply Voltage

45V Load-Dump Protection

Output Voltage: 3.0V to 5.5V

o 600mA High-Efficiency 2.2MHz DC-DC Converter

2.7V to 5.5V Supply Voltage

Output Voltage: 1.0V to 3.9V

180° Out-of-Phase Operation

Forced-PWM and Auto-PWM Modes

o LDO Linear Regulators

OUT3: 1.0V to 4.15V at 300mA

OUT4: 1.0V to 4.15V at 300mA

Separate Inputs for Increased Efficiency

The 1.2A output high-efficiency, step-down DC-DC con-

verter (OUT1) operates from a voltage up to 28V contin-

uous and is protected from load-dump transients up to

45V. The 600mA output high-efficiency step-down DC-

DC converter (OUT2) runs from a voltage up to 5.5V.

The two 300mA LDO linear regulators offer low dropout

of only 130mV (typ). The power-good RESET output

provides voltage monitoring for OUT1 and OUT2.

o Enable Input

o RESET Output Monitoring on OUT1 and OUT2

o Overtemperature and Short-Circuit Protection

o Available in

5mm x 5mm x 0.8mm, 20-Pin TQFN-EP

4.5mm x 6.5mm, 20-Pin TSSOP-EP

OUT1 and OUT2 use fast 2.2MHz PWM switching and

small external components. The high-voltage converter

(OUT1) enters skip mode automatically under light

loads to prevent an overvoltage condition from occur-

ring at the output. The low-voltage synchronous DC-DC

converter (OUT2) can operate in forced-PWM mode to

prevent any AM band interference or high-efficiency

auto-PWM mode.

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

MAX16922ATP_ /V+*

MAX16922AUP_ /V+*

-40°C to +125°C 20 TQFN-EP**

-40°C to +125°C 20 TSSOP-EP**

*Insert the desired suffix letters (from the Selector Guide) into

the blank “_” to complete the part number.

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

/V denotes an automotive qualified part.

**EP = Exposed pad.

The MAX16922 includes overtemperature shutdown

and overcurrent limiting. All devices are designed to

operate from -40°C to +125°C ambient temperature.

Typical Operating Circuit

PV1

OUTS2

2.2µH

4.7µF

LX2

OUT2

10µF

PWM

PV3

OUT1

PGND2

PV2

BST

4.7µF

MAX16922

0.1µF

OUT3

GND1

GND3

OUT3

4.7µF

4.7µH

LX1

OUT1

OUT2

OUTS1

PV4

10µF

4.7µF

OUT1

LSUP

OUT4

GND

OUT4

1µF

20kΩ

4.7µF

GND2

RESET

________________________________________________________________ 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.

12 3 4 5 6 7...17

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与MAX16922_10相关器件

型号	品牌	获取价格	描述	数据表
MAX16922_11	MAXIM	获取价格	2.2MHz, Dual, Step-Down DC-DC Converters, Dual LDOs, and RESET
MAX16922_12	MAXIM	获取价格	2.2MHz, Dual, Step-Down DC-DC Converters, Dual LDOs, and RESET
MAX16922ATP	MAXIM	获取价格	2.2MHz, Dual, Step-Down DC-DC Converters, Dual LDOs, and RESET
MAX16922ATP_/V+	MAXIM	获取价格	2.2MHz, Dual, Step-Down DC-DC Converters, Dual LDOs, and RESET
MAX16922ATPC/V+	MAXIM	获取价格	Dual Switching Controller, Current-mode, 1.2A, 2400kHz Switching Freq-Max, BICMOS, 5 X 5 M
MAX16922ATPC/V+T	MAXIM	获取价格	暂无描述
MAX16922ATPH/V+	MAXIM	获取价格	Dual Switching Controller, Current-mode, 1.2A, 2400kHz Switching Freq-Max, BICMOS, 5 X 5 M
MAX16922ATPI/V+	MAXIM	获取价格	Switching Regulator, Current-mode, 1.2A, 2400kHz Switching Freq-Max, BICMOS, 5 X 5 MM, 0.8
MAX16922ATPJ/V+	MAXIM	获取价格	Switching Regulator, Current-mode, 1.2A, 2400kHz Switching Freq-Max, BICMOS, 5 X 5 MM, 0.8
MAX16922ATPK/V+	MAXIM	获取价格	Dual Switching Controller, Current-mode, 1.2A, 2400kHz Switching Freq-Max, BICMOS, 5 X 5 M

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