Low-Noise, 14V Input, 1A, PWM Step-Down Converters

General Description The MAX1684/MAX1685 are high-efficiency, internal switch, pulse-width modulation (PWM) step-down switching regulators intended to power cellular phones, communicating PDAs, and handy-terminals. These devices deliver a guaranteed 1A output current from two lithium-ion (Li+) bat

低噪声、14V输入、1A、PWM降压型转换器

MAX1684/MAX1685是高效的内部开关式、脉宽调制(PWM)降压型开关稳压器，旨在为蜂窝电话、通信PDA和手持终端供电。这些器件通过两节锂离子电池提供可靠的1A输出电流。其2.7V至14V的宽输入电压范围为设计提供了灵活性，并支持从插墙式电源为电池充电，因为该IC可在移除电池时出现的更高电压下工作。输出电压预设为3.3V，也可在1.25V至VIN的范围内进行外部调节。\n\n 低导通电阻功率开关和内置同步整流器提供高达96%的效率。有四种工作模式：固定频率模式、正常模式、低功耗模式和关断模式。固定频率PWM工作模式提供出色的噪声特性。正常模式可在所有负载下保持高效率。 • 效率高达96%\n\n• 支持1A输出电流\n\n• 压差模式下达到100%占空比\n\n• 输入范围：2.7V至14V（绝对最大值：15V）\n\n• 基准电压输出精度为±1%\n\n• 0.24Ω P沟道导通电阻\n\n• 可同步开关频率\n\n• 固定频率PWM操作\n• 300kHz (MAX1684)\n\n• 600kHz (MAX1685)\n\n\n\n\n• 正常模式静态电流：150µA\n\n• 低功耗模式静态电流：25µA\n\n• 关断电流：2µA\n\n• Dual Mode™固定3.3V (±1%)输出或可调输出（1.25V至VI;

Low-Noise, 14V Input, 1A, PWM Step-Down Converters

文件：294.29 Kbytes Page：14 Pages

Low-Noise, 14V Input, 1A, PWM Step-Down Converters

General Description The MAX1684/MAX1685 are high-efficiency, internal switch, pulse-width modulation (PWM) step-down switching regulators intended to power cellular phones, communicating PDAs, and handy-terminals. These devices deliver a guaranteed 1A output current from two lithium-ion (Li+) bat

Low-Noise, 14V Input, 1A, PWM Step-Down Converters

文件：294.29 Kbytes Page：14 Pages

封装/外壳：16-SSOP（0.154"，3.90mm 宽） 功能：降压 包装：卷带（TR） 描述：IC REG BUCK ADJ/3.3V 1A 16QSOP 集成电路（IC） 稳压器 - DC-DC 开关稳压器

封装/外壳：16-SSOP（0.154"，3.90mm 宽） 功能：降压 包装：管件 描述：IC REG BUCK ADJ/3.3V 1A 16QSOP 集成电路（IC） DC DC 开关稳压器

fully assembled and tested surface-mount circuit board

文件：80.55 Kbytes Page：4 Pages

High-Speed Transimpedance Amplifier

Description CXA1685M is a low noise transimpedance amplifier, particularly suitable for fiber-optic system. CXA1685M is fabricated using high-speed bipolar process. Features • High transimpedance: Q 11.2kΩ (Typ.) Q 10.8kΩ (Typ.) • Wide band width (–3dB): Q 177MHz (Typ.) Q 157MHz (Typ.) • Max

Noise Reduction Mono Headset IC with A2DP streaming

1. General Description ISSC IS1685S is a compact, high integration, ultra-low cost, CMOS single-chip RF + baseband IC for Bluetooth v3.0(EDR) (Enhanced Data Rate) 2.4GHz applications. This chip is fully compliant with Bluetooth specification and completely backward-compatible with Bluetooth 1.

GENERAL PURPOSE 5 V FREQUENCY DOWN-CONVERTER IC

DESCRIPTION The µPC1685G is Silicon monolithic IC designed for UHF band receiver applications. This IC consists of double balanced mixer, local oscillator, IF amplifier, and voltage regulator. The package is 8-pin SOP suitable for high-density surface mount. FEATURES • UHF band operation • Go