ADPL16000中文资料60V, 400mA, Ultra-Small, Hi gh-Efficiency, Synchronous Step-Down DC-DC Converters数据手册ADI规格书

描述 Description

The ADPL16000 family of products are high-efficiency, high-voltage, synchronous DC-DC converters with integrated MOSFETs operating over a wide input-voltage range of 4.5V to 60V.

The converters can deliver up to 400mA and generate output voltages from 0.9V to 0.89 x VIN; ADPL16000A is fixed at 3.3V, ADPL16000B is fixed at 5.0V, and ADPL16000C is adjustable. The family of converters is available in a compact, 8-pin, 2mm x 2mm TDFN-CU package.

The device employs a peak-current-mode control architecture with a MODE pin that can be used to operate the device in pulse-width modulation (PWM) or pulse-frequency modulation (PFM) control schemes. PWM operation provides constant frequency operation at all loads and is useful in applications sensitive to variable switching frequency. PFM operation disables negative inductor current, and additionally skips pulses at light loads for high-efficiency. The low-resistance on-chip MOSFETs ensure high-efficiency at full load and simplify the PCB layout.

APPLICATIONS


Industrial Sensors

4–20mA Current Loops

HVAC and Building Control

High-Voltage LDO Replacement

General Purpose Point-of-Load

特性 Features

Eliminates External Components and Reduces Total Cost
No Schottky—Synchronous Operation for High Efficiency and Reduced Cost
Internal Compensation
Internal Feedback Divider for Fixed 3.3V, 5V Output Voltages
Internal Soft-Start 
All Ceramic Capacitors, Ultra-Compact Layout
Flexibility to Support Multiple Rails in a System
Wide 4.5V to 60V Input Voltage Range
Fixed 3.3V and 5V Output Voltage Options
Adjustable 0.9V to 0.89 x VIN Output Voltage Option
Delivers up to 400mA Load Current
Configurable Between PFM and Forced-PWM Modes
Reduces Power Dissipation
92% Peak Efficiency
PFM Feature for High Light-Load Efficiency
2.2μA (typ) Shutdown Current

Operates Reliably in Adverse Industrial Environments
Hiccup-Mode Current Limit and Auto-retry Startup
Built-In Output Voltage Monitoring with Open-Drain RESET Pin
Programmable EN/UVLO Threshold
Monotonic Startup into Prebiased Output
Overtemperature Protection 
Wide -40°C to +125°C Ambient Operating Temperature Range and -40°C to +150°C Junction Temperature Range
Complies with CISPR32 (EN55032) Class B Conducted and Radiated Emissions