Datasheet > AS1335-BTDT-100

AS1335-BTDT-100

更新时间： 2024-02-28 15:54:37

品牌	Logo	应用领域
艾迈斯 - AMSCO		转换器
页数	文件大小	规格书
18页	1650K
描述
1.5A, 1.5MHz, Synchronous DC/DC Step-Down Converter

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AS1335-BTDT-100 技术参数

生命周期：	Unknown	Reach Compliance Code：	unknown
风险等级：	5.76	Base Number Matches：	1

AS1335-BTDT-100 数据手册

Datasheet

AS1335

1.5A, 1.5MHz, Synchronous DC/DC Step-Down Converter

1 General Description

2 Key Features

ꢀ High Efficiency: Up to 96%

The AS1335 is a high-efficiency, constant-frequency

synchronous buck converter available in a fixed or an

adjustable output voltage version. The wide input volt-

age range (2.6V to 5.25V), the high output current (up to

1.5A) and minimal external component requirements

make the AS1335 perfect for any single Li-Ion battery-

powered application.

ꢀ Output Current: 1.5A

ꢀ Input Voltage Range: 2.6V to 5.25V

ꢀ Output Voltage Range: 0.6V to VIN

ꢀ Constant Frequency Operation: 1.5MHz

ꢀ No Schottky Diode Required

Typical supply current with no load is 400µA and

decreases to ≤1µA in shutdown mode. The highly effi-

cient duty cycle (100%) provides low dropout operation,

prolonging battery life in portable systems.

ꢀ Power OK with 215ms delay

ꢀ Low Dropout Operation: 100% Duty Cycle

ꢀ Low Quiescent Supply Current: 400µA

ꢀ Shutdown Mode Supply Current: ≤1µA

The device also offers a power-ok signal with a 215ms

delay, which can be reseted or delayed further via the

RSI pin.

An internal synchronous switch increases efficiency and

eliminates the need for an external Schottky diode. The

internally fixed switching frequency (1.5MHz) allows for

the use of small surface mount external components.

ꢀ Current Mode Operation for Excellent Line/Load

Transient Response

ꢀ Thermal Protection

The AS1335 is available in a 10-pin TDFN 3x3mm pack-

age.

ꢀ 10-pin TDFN 3x3mm Package

3 Applications

The device is ideal for mobile communication devices,

laptops and PDAs, ultra-low-power systems, threshold

detectors/discriminators, telemetry and remote systems,

medical instruments, or any other space-limited applica-

tion with low power-consumption requirements.

Figure 1. AS1335 - Typical Application Diagram

2.2µH

VOUT

VIN

1.0V, 1.5A

CIN

22µF

2.6V to 5.25V

COUT

VIN

22µF

PGND

AS1335

GND

POK

GND

RSI

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