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AP63357DV-7

Synchronous Buck Converter

The AP63357DV-7 is a synchronous buck converter from Diodes Incorporated. View the full AP63357DV-7 datasheet below including key specifications, absolute maximum ratings.

Official AP63357DV-7 datasheet (PDF) — the source this page was extracted from.

Manufacturer

Diodes Incorporated

Category

Switching Regulators (Buck)

Package

13-PowerVFDFN

Lifecycle

Production (Last Updated: 2 weeks ago)

AP63357DV-7 Key Specifications

ParameterValue
China RoHSCompliant
Output Current3.5A
Switching Frequency450kHz
FunctionStep-Down
Height - Seated (Max)850 µm
Introduction Date2019-08-19
Length3 mm
Lifecycle StatusProduction (Last Updated: 2 weeks ago)
Max Input Voltage32 V
Max Operating Temperature85 °C
Max Output Current3.5 A
Max Output Voltage31 V
Max Switching Frequency450 kHz
Min Input Voltage3.8 V
Min Operating Temperature-40 °C
Min Output Voltage800 mV
Mounting TypeSurface Mount
Nominal Input Voltage12 V
Nominal Output Voltage5 V
Number of Circuits1
Number of Outputs1
Number of Terminals9
Operating Temperature-40°C ~ 85°C (TA)
Output ConfigurationPositive
Output TypeAdjustable
Package / Case13-PowerVFDFN
REACH SVHCUnaffected
RoHSCompliant
Supplier Device PackageV-DFN3020-13 (Type A)
Synchronous RectifierYes
Terminal Pitch450 µm
TopologyBuck
TopologyBuck
Input Voltage (Max)32V
Input Voltage (Min)3.8V
Output Voltage (Max)31V
Output Voltage0.8V
Width2 mm

AP63357DV-7 Overview

Part: AP63357DV-7 (AP63356/AP63357 family) — Diodes Incorporated

Type: Synchronous Buck Converter

Description: 3.8–32 V input, 3.5 A synchronous buck converter with integrated 74 mΩ high-side and 40 mΩ low-side MOSFETs, 450 kHz switching frequency, and 22 μA typical quiescent current (AP63357, PFM mode).

Operating Conditions:

  • Supply voltage: 3.8–32 V
  • Operating ambient temperature: -40 to +85 °C (operating junction temperature -40 to +125 °C)
  • Output voltage range: 0.8–31 V

Absolute Maximum Ratings:

  • Max supply voltage (VIN): 35.0 V DC; 40.0 V for 400 ms
  • Max junction temperature: +170 °C
  • Storage temperature: -65 to +150 °C

Key Specs:

  • Shutdown supply current: 1 μA typ, 3 μA max (VEN = 0 V)
  • Quiescent supply current: 258 μA typ (AP63356), 22 μA typ (AP63357), VEN floating, VFB = 1.0 V
  • Feedback voltage: 0.792 / 0.800 / 0.808 V (min/typ/max)
  • Oscillator frequency: 400 / 450 / 500 kHz (min/typ/max)
  • High-side peak current limit: 4.0 / 5.0 / 6.0 A (min/typ/max)
  • Low-side valley current limit: 3.2 / 4.2 / 5.2 A (min/typ/max)
  • VIN UVLO rising threshold: 3.5 V typ (3.3–3.6 V), 420 mV hysteresis
  • Minimum on-time: 100 ns typ, 120 ns max
  • Soft-start time: 4 ms typ
  • Thermal resistance θJA: 25 °C/W (V-DFN3020-13)

Features:

  • 3.5 A continuous output current
  • Proprietary gate driver design for EMI reduction
  • Frequency spread spectrum with ±6% jitter
  • AP63356: forced PWM regardless of load
  • AP63357: PFM at light load, up to 86% efficiency at 5 mA
  • Peak current mode control with integrated loop compensation
  • Low-dropout (LDO) mode
  • Power good indicator with 5 MΩ internal pull-up
  • Precision enable threshold for adjustable UVLO
  • Protection: UVLO, output undervoltage, cycle-by-cycle current limit, thermal shutdown (170 °C)
  • Lead-free, RoHS compliant, halogen and antimony free

Applications:

  • 5 V, 12 V, and 24 V distributed power bus supplies
  • Flat screen TVs and monitors
  • Power tools and laser printers
  • White goods and small home appliances
  • FPGA, DSP, and ASIC supplies
  • Home audio
  • Network systems
  • Gaming consoles
  • Consumer electronics
  • General purpose point of load

Package:

  • V-DFN3020-13 (3 mm × 2 mm)

AP63357DV-7 Features

  • VIN 3.8V to 32V
  • 3.5A Continuous Output Current
  • 0.8V ± 1% Reference Voltage
  • 22μA Low Quiescent Current (Pulse Frequency Modulation)
  • 450kHz Switching Frequency
  • Pulse Width Modulation (PWM) Regardless of Output Load
  • o AP63356
  • Supports Pulse Frequency Modulation (PFM)
  • o AP63357
  • o Up to 86% Efficiency at 5mA Light Load
  • Proprietary Gate Driver Design for Best EMI Reduction
  • Frequency Spread Spectrum (FSS) to Reduce EMI
  • Low-Dropout (LDO) Mode
  • Power Good Indicator with 5MΩ Internal Pull-up
  • Precision Enable Threshold to Adjust UVLO
  • Protection Circuitry
  • o Undervoltage Lockout (UVLO)
  • o Output Undervoltage Protection (UVP)
  • o Cycle-by-Cycle Peak Current Limit
  • o Thermal Shutdown
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. 'Green' Device (Note 3)

AP63357DV-7 Applications

  • 5V, 12V, and 24V Distributed Power Bus Supplies
  • Flat Screen TV Sets and Monitors
  • Power Tools and Laser Printers
  • White Goods and Small Home Appliances
  • FPGA, DSP, and ASIC Supplies
  • Home Audio
  • Network Systems
  • Gaming Consoles
  • Consumer Electronics
  • General Purpose Point of Load

AP63357DV-7 Pin Configuration

AP63357DV-7 Absolute Maximum Ratings

SymbolParameterRatingUnit
VINSupply Pin Voltage-0.3 to +35.0 (DC)V
VINSupply Pin Voltage-0.3 to +40.0 (400ms)V
V ENEnable/UVLO Pin Voltage-0.3 to +35.0V
V FBFeedback Pin Voltage-0.3 to +6.0V
V COMPCompensation Pin Voltage-0.3 to +6.0V
V PGPower-Good Pin Voltage-0.3 to +6.0V
V BSTBootstrap Pin VoltageV SW - 0.3 to V SW + 6.0V
V SWSwitch Pin Voltage-0.3 to VIN + 0.3 (DC)V
V SWSwitch Pin Voltage-2.5 to VIN + 2.0 (20ns)V
T STStorage Temperature-65 to +150°C
T JJunction Temperature+170°C
T LLead Temperature+260°C
ESD Susceptibility (Note 5)ESD Susceptibility (Note 5)ESD Susceptibility (Note 5)ESD Susceptibility (Note 5)
HBMHuman Body Model2000V
CDMCharged Device Model1000V

Notes:

  1. Stresses greater than the Absolute Maximum Ratings specified above may cause permanent damage to the device. These are stress ratings only; functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be affected by exposure to absolute maximum rating conditions for extended periods of time.

  2. Semiconductor devices are ESD sensitive and may be damaged by exposure to ESD events. Suitable ESD precautions should be taken when handling and transporting these devices.

AP63357DV-7 Recommended Operating Conditions

SymbolParameterMinMaxUnit
VINSupply Voltage3.832V
VOUTOutput Voltage0.831V
T AOperating Ambient Temperature Range-40+85°C
T JOperating Junction Temperature Range-40+125°C

Note: 7. The device function is not guaranteed outside of the recommended operating conditions.

AP63357DV-7 Thermal Information

SymbolParameterRatingRatingUnit
θ JAJunction to AmbientV-DFN3020-13 (Type A)25°C/W
θ JCJunction to CaseV-DFN3020-13 (Type A)5°C/W

Note: 6. Test condition for V-DFN3020-13: Device mounted on FR-4 substrate, four-layer PC board, 2oz copper, with minimum recommended pad layout.

AP63357DV-7 Typical Application

Figure 1. Typical Application Circuit

Figure 2. AP63356 Efficiency vs. Output Current

VIN = 12V, VOUT = 5V, L = 6.8μH

VIN = 12V, VOUT = 3.3V, L = 4.7μH

Figure 3. AP63357 Efficiency vs. Output Current

AP63357DV-7 Package Information

Please see http://www.diodes.com/package-outlines.html for the latest version.

Variants on the same datasheet

These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.

Part NumberManufacturerPackage
AP63357Diodes IncorporatedV-DFN3020-13

Other Switching Regulators (Buck)

  • TPS54302 – Texas Instruments, Synchronous Step-Down Converter
  • MAX20730 – Analog Devices, Synchronous Switching Regulator
  • TLV62568 – Texas Instruments, Synchronous Buck Converter
  • LM2596 – Texas Instruments, Step-Down Voltage Regulator
  • TPS562200 – Texas Instruments, Synchronous Buck Converter
  • AP63203WU – Diodes Incorporated, Synchronous Buck Converter
  • TPS54202 – Texas Instruments, Synchronous Buck Converter
  • TPS54334DDA – Texas Instruments, Synchronous Step-Down Voltage Converter

All Switching Regulators (Buck) datasheetsAll Diodes datasheets (217)

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