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MAX1958ETP-T

更新时间： 2024-11-05 13:10:27

品牌	Logo	应用领域
美信 - MAXIM		手机
页数	文件大小	规格书
24页	795K
描述
Baseband Circuit, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, QFN-20

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技术参数
数据手册

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MAX1958ETP-T 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	QFN
包装说明：	HVQCCN,	针数：	20
Reach Compliance Code：	compliant	HTS代码：	8542.39.00.01
风险等级：	5.4	JESD-30 代码：	S-XQCC-N20
JESD-609代码：	e0	长度：	5 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	20	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN	封装形状：	SQUARE
封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	峰值回流温度（摄氏度）：	240
认证状态：	Not Qualified	座面最大高度：	0.8 mm
标称供电电压：	3.6 V	表面贴装：	YES
技术：	BICMOS	电信集成电路类型：	BASEBAND CIRCUIT
温度等级：	INDUSTRIAL	端子面层：	TIN LEAD
端子形式：	NO LEAD	端子节距：	0.65 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	5 mm	Base Number Matches：	1

MAX1958ETP-T 数据手册

19-2659; Rev 0; 10/02

W-CDMA/N-CDMA Cellular Phone HBT PA

Management ICs

General Description

Features

The MAX1958/MAX1959 power amplifier (PA) power-

management ICs (PMICs) integrate an 800mA, dynami-

cally adjustable step-down converter, a 5mA Rail-to-

Rail^®operational amplifier (op amp), and a precision

temperature sensor to power a heterojunction bipolar

transistor (HBT) PA in W-CDMA and N-CDMA cell

phones.

ꢀ Step-Down Converter

Dynamically Adjustable Output Voltage from

0.75V to 3.4V (MAX1958)

Dynamically Adjustable Output Voltage from

1V to 3.6V (MAX1959)

800mA Guaranteed Output Current

130mV IC Dropout at 600mA Load

Low Quiescent Current

The high-efficiency, pulse-width modulated (PWM), DC-

to-DC buck converter is optimized to provide a guaran-

teed output current of 800mA. The output voltage is

dynamically controlled to produce any fixed-output volt-

age in the range of 0.75V to 3.4V (MAX1958) or 1V to

3.6V (MAX1959), with settling time less than 30µs for a

full-scale change in voltage and current. The 1MHz PWM

switching frequency allows the use of small external

components while pulse-skip mode reduces quiescent

current to 190µA with light loads. The converter utilizes a

low on-resistance internal MOSFET switch and synchro-

nous rectifier to maximize efficiency and minimize

external component count. The 100% duty-cycle opera-

tion allows for an IC dropout voltage of only 130mV (typ)

at 600mA load.

190µA (typ) in Skip Mode (MAX1958)

3mA (typ) in PWM Mode

0.1µA (typ) in Shutdown Mode

1MHz Fixed-Frequency PWM operation

16% to 100% Duty-Cycle Operation

No External Schottky Diode Required

Soft-Start

ꢀ Operational Amplifier

5mA Rail-to-Rail Output

Active Discharge in Shutdown

800kHz Gain-Bandwidth Product

120dB Open-Loop Voltage Gain (R = 100kΩ)

ꢀ Temperature Sensor

Accurate Sensor -11.7mV/°C Slope

-40°C to +125°C-Rated Temperature Range

The micropower op amp is used to provide bias to the

HBT PA to maximize efficiency. The amplifier features

active discharge in shutdown for full PA bias control. It

has 5mA rail-to-rail drive capability, 800kHz gain-band-

width product, and 120dB open-loop voltage gain.

ꢀ 20-Pin Thin QFN (5mm ✕ 5mm), 0.8mm Height (max)

Ordering Information

The precision temperature sensor measures tempera-

tures between -40°C to +125°C, with linear tempera-

ture-to-voltage analog output characteristics.

PART

TEMP RANGE

-40°C to +85°C

PIN-PACKAGE

20 Thin QFN-EP*

20 Thin QFN-EP

MAX1958ETP

MAX1959ETP

The MAX1958/MAX1959 are available in a 20-pin 5mm ✕

5mm thin QFN package (0.8mm max height).

*EP = Exposed paddle.

Pin Configuration

TOP VIEW

Applications

W-CDMA and N-CDMA Cellular Phones

AOUT

SHDN2

AGND

TOUT

REF

15 PWM

14 INP

13 IN

Wireless PDAs and Modems

MAX1958/

MAX1959

PGND

Typical Operating Circuit and Functional Diagram appear at

end of data sheet.

THIN QFN

5mm x 5mm

Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...24

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与MAX1958ETP-T相关器件

型号	品牌	获取价格	描述	数据表
MAX1959	MAXIM	获取价格	W-CDMA/N-CDMA Cellular Phone HBT PA Management ICs
MAX1959ETP	MAXIM	获取价格	SMPS Controller
MAX1959ETP+	MAXIM	获取价格	Baseband Circuit, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, QFN-20
MAX1959ETP-T	MAXIM	获取价格	Baseband Circuit, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, QFN-20
MAX195ACDE	MAXIM	获取价格	16-Bit, 85ksps ADC with 10レA Shutdown
MAX195AEDE	MAXIM	获取价格	16-Bit, 85ksps ADC with 10レA Shutdown
MAX195AMDE	MAXIM	获取价格	16-Bit, 85ksps ADC with 10レA Shutdown
MAX195BC/D	MAXIM	获取价格	16-Bit, 85ksps ADC with 10レA Shutdown
MAX195BCPE	MAXIM	获取价格	16-Bit, 85ksps ADC with 10レA Shutdown
MAX195BCPE+	MAXIM	获取价格	暂无描述

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