MAX8902A

更新时间： 2024-11-26 03:14:59

品牌	Logo	应用领域
美信 - MAXIM		稳压器
页数	文件大小	规格书
10页	267K
描述
Low-Noise 500mA LDO Regulators in a 2mm x 2mm TDFN Package

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MAX8902A 数据手册

19-0990; Rev 0; 9/07

Low-Noise 500mA LDO Regulators

in a 2mm x 2mm TDFN Package

/MAX8902B

General Description

Features

The MAX8902A/MAX8902B low-noise linear regulators

deliver up to 500mA of output current with only

♦ 1.7V to 5.5V Input Voltage Range

♦ 0.6V to 5.3V Output Voltage Range

16µV

of output noise in a 100kHz bandwidth. These

RMS

♦ 16µV

Output Noise, 10Hz to 100kHz

RMS

regulators maintain their output voltage over a wide

input range, requiring only 100mV of input-to-output

headroom at full load.

♦ 80µA Operating Supply Current

♦ 92dB PSRR at 5kHz

These LDOs maintain a low 80µA typical supply cur-

rent, independent of the load current and dropout volt-

age. The regulator control circuitry includes a

programmable soft-start circuit and short circuit,

reverse current, and thermal overload protection. Other

features include a shutdown input and a power-OK out-

put (MAX8902B only).

♦ Guaranteed 500mA Output Current

♦

1.5ꢀ Output Aꢁꢁuraꢁy Oꢂer ꢃoad, ꢃine, and

Temperature

♦ 100mV (max) Dropout at 500mA ꢃoad

♦ < 1µA Shutdown Supply Current

♦ 700mA Short-Cirꢁuit Proteꢁtion

The MAX8902A output voltage can be set to 1.5V, 1.8V,

2.0V, 2.5V, 3.0V, 3.1V, 3.3V, 4.6V, or 4.7V using the

SELA and SELB inputs. The MAX8902B output voltage

can be set between 0.6V and 5.3V with an external

resistor voltage divider.

♦ Thermal-Oꢂerload Proteꢁtion

♦ Output-to-Input Reꢂerse Current Proteꢁtion

♦ 2mm x 2mm x 0.8mm TDFN Paꢁkage

Applications

Ordering Information

Notebook Computers

TOP

MARK

PKG

CODE

PART

FEATURES

MP3 and Portable Media Players

Wireless Headphones

Pin-selectable output

voltage

MAX8902AATA+

MAX8902BATA+

ABG

ABH

T822-1

GPS Portable Navigation Devices

Smartphones

Adjustable output

voltage

+Denotes a lead-free, RoHS-compliant package.

Note: All devices are in an 8-pin, 2mm x 2mm TDFN package

with an exposed paddle and operate over the -40°C to +125°C

automotive temperature range.

Typical Operating Circuits

INPUT

4.7V TO 5.5V

OUTPUT ADJUSTABLE

OUTPUT

4.6V

1.7V TO 5.5V

0.6V TO 5.3V

OUT

BYP

4.7μF

0.01μF

10μF

0.01μF

10μF

MAX8902B

MAX8902A

BYP

OFF

LOGIC

SUPPLY

OFF

OUTS

100kΩ

SELA

SELB

GND

POK

TO μC

GND

Pin Configurations appear at end of data sheet.

________________________________________________________________ Maxim Integrated Produꢁts

For priꢁing, deliꢂery, and ordering information, please ꢁontaꢁt Maxim Direꢁt at 1-888-629-4642,

or ꢂisit Maxim's website at www.maxim-iꢁ.ꢁom.

12 3 4 5 6 7...10

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与MAX8902A相关器件

型号	品牌	获取价格	描述	数据表
MAX8902A_08	MAXIM	获取价格	Low-Noise 500mA LDO Regulators in a 2mm x 2mm TDFN Package
MAX8902A_11	MAXIM	获取价格	Low-Noise 500mA LDO Regulators in a 2mm x 2mm TDFN Package
MAX8902A_12	MAXIM	获取价格	Low-Noise 500mA LDO Regulators in a 2mm x 2mm TDFN Package
MAX8902A_15	MAXIM	获取价格	Low-Noise 500mA LDO Regulators in a 2mm x 2mm TDFN Package
MAX8902AATA	MAXIM	获取价格	Low-Noise 500mA LDO Regulators in a 2mm x 2mm TDFN Package
MAX8902AATA/V+	MAXIM	获取价格	Fixed Positive LDO Regulator, 1.5V, 0.12V Dropout, BICMOS, PDSO8, 2 X 2 MM, 0.80 MM HEIGHT
MAX8902AATA+	MAXIM	获取价格	Low-Noise 500mA LDO Regulators in a 2mm x 2mm TDFN Package
MAX8902AATA+T	MAXIM	获取价格	Regulator, 1 Output, BICMOS, PDSO8,
MAX8902AATA-T	MAXIM	获取价格	Low-Noise 500mA LDO Regulators in a 2mm x 2mm TDFN Package
MAX8902B	MAXIM	获取价格	Low-Noise 500mA LDO Regulators in a 2mm x 2mm TDFN Package

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