KTB8370中文资料芯凯电子数据手册PDF规格书

Features

• Wide VIN Range: 4.7V to 17V

• Maximum Continuous Output Current: 5A

• Factory fixed Options for Output Voltage from 0.64V

to 5.5V with 40mV step, available by request

• Integrated High / Low-Side FETs (65mΩ / 35mΩ)

• Advanced Adaptive On-Time Control

• Fast Transient Response

• Open Drain Power Good Indicator

• ±0.5% Feedback Voltage Reference

• Zero Shutdown Supply Current

• 50μA Non-Switching Operating Quiescent Current

• 80μA No Load Operating Quiescent Current

• High Efficiency in Light Load and Heavy Load.

• Factory 300kHz, 500kHz, 800kHz, and 1MHz

Switching Frequency options available by request

• Internal Soft-Start

• Factory Forced CCM (FCCM) or automatic

CCM/PFM (Auto-Skip) Options

• Active discharge Mode option

• Built-in Cycle-by-Cycle Current Limit, Short Circuit

Protection, Input UVLO, Output Under-Voltage

Protection, Output Over-Voltage Protection, and

Thermal Shutdown Protection

• Small 20-bump WLCSP (1.7mm x 2.0mm) Package

Applications

• CPU, GPU, AP, DSP, FPGA, VIO, VSYS

• HDD, LPDDR3, LPDDR4 Memory Power

• Tablets, Netbooks, Ultra-Books, Mobile Internet

Devices, IoT, and Server.

• DSC, Drones, Gaming Consoles, TV Set Box

Description

KTB8370 is 5A, 17V synchronous buck regulators with

integrated high-side and low-side power FETs. The

device operates over a wide input voltage range to

support a variety of applications with input voltage from

regulated 5V and12V power rails and multicell batteries.

KTB8370 employs Kinetics’ proprietary advanced

adaptive on-time (AOT) control for fast transient

response and high output voltage accuracy. This control

technique eliminates external loop compensation

network and allows the use of ceramic output capacitors

without ripple-generating circuitry. These features

enable very small total solution size and make KTB8370

easy to use.

The device features an internal soft-start function to limit

inrush current during start-up. The device has

comprehensive built-in protection features including

input voltage UVLO, high-side cycle-by-cycle peak

current limit, low-side valley current limit, reverse

current protection, short-circuit protection, output overvoltage

protection, and thermal shutdown.

KTB8370 are available in RoHS and Green compliant

20-bump 1.7mm x 2.0mm x 0.6mm wafer-level chipscale

WLCSP20 package.