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AP62300

Synchronous Buck Converter

The AP62300 is a synchronous buck converter from Diodes Incorporated. View the full AP62300 datasheet below including key specifications, absolute maximum ratings.

AP62300 shares its datasheet with AP62300TWU-7, whose page lists every part number it covers.

Official AP62300 datasheet (PDF) — the source this page was extracted from.

Manufacturer

Diodes Incorporated

Category

Integrated Circuits

AP62300 Key Specifications

ParameterValue
Output Current3A
Switching Frequency750kHz
FunctionStep-Down
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature-40°C ~ 85°C (TA)
Output ConfigurationPositive
Output TypeAdjustable
Package / CaseSOT-23-6 Thin, TSOT-23-6
PackagingMouseReel
Standard Pack Qty3000
Supplier Device PackageTSOT-26
Synchronous RectifierYes
TopologyBuck
Input Voltage (Max)18V
Input Voltage (Min)4.2V
Output Voltage (Max)7V
Output Voltage0.763V

AP62300 Overview

Part: AP62300TWU-7 (AP62300/AP62301/AP62300T family) — Diodes Incorporated

Type: Synchronous Buck Converter (COT control)

Description: 4.2–18 V input, 3 A synchronous buck converter with integrated 75 mΩ high-side and 45 mΩ low-side MOSFETs, 155 μA typical quiescent current (AP62300/AP62300T) and 750 kHz switching frequency.

Operating Conditions:

  • Supply voltage: 4.2–18.0 V
  • Operating ambient temperature: -40 to +85 °C (operating junction temperature -40 to +125 °C)
  • Output voltage range: 0.8–7.0 V

Absolute Maximum Ratings:

  • Max supply voltage (VIN): -0.3 to +20.0 V (DC); -0.3 to +22.0 V (400 ms)
  • Max junction temperature: +160 °C
  • Storage temperature: -65 to +150 °C

Key Specs:

  • Shutdown supply current: 1.5 μA typ (VEN = 0 V)
  • Quiescent supply current: 155 μA typ (AP62300/AP62300T, VFB = 0.85 V); 275 μA typ (AP62301)
  • RDS(ON): 75 mΩ high-side, 45 mΩ low-side (typ)
  • Low-side valley current limit: 3.2 / 3.7 / 4.2 A (min/typ/max)
  • Switching frequency: 750 kHz typ (VOUT = 5 V, CCM)
  • Feedback voltage: 0.800 V typ (AP62300/AP62301, 0.784–0.816 V over temperature); 0.763 V typ (AP62300T, 0.747–0.778 V over temperature)
  • Minimum on-time / off-time: 90 ns / 220 ns typ
  • Soft-start time: 2.5 ms typ
  • VIN POR rising threshold: 3.90 V typ (4.15 V max); UVLO falling: 3.6 V typ
  • Thermal shutdown: +160 °C typ, 20 °C hysteresis
  • Thermal resistance θJA: 70 °C/W (TSOT26), 110 °C/W (SOT563)

Features:

  • Constant On-Time (COT) control for fast transient response and easy loop stabilization
  • 3 A continuous output current
  • Pulse Frequency Modulation (PFM) light-load operation on AP62300/AP62300T, up to 83% efficiency at 5 mA; AP62301 operates in PWM at all loads
  • Proprietary gate driver design for EMI reduction
  • Precision EN threshold (1.2 V) usable for programming UVLO
  • Protection: UVLO, cycle-by-cycle valley current limit, thermal shutdown
  • Lead-free, RoHS compliant, halogen and antimony free

Applications:

  • 5 V and 12 V distributed power bus supplies
  • Flat screen TV sets and monitors
  • 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:

  • TSOT26 (6 pins)
  • SOT563 (6 pins; AP62300/AP62301 only)

AP62300 Features

  • VIN: 4.2V to 18V
  • Output Voltage (VOUT): 0.8V to 7V
  • 3A Continuous Output Current
  • 0.8V ± 1% Reference Voltage (TA = +25° C)
  • AP62300 and AP62301
  • 0.763V ± 1% Reference Voltage (TA = +25° C)
  • AP62300T
  • 155μA Low Quiescent Current (Pulse Frequency Modulation)
  • 750kHz Switching Frequency (VIN = 12V, VOUT = 5V)
  • Up to 83% Efficiency at 5mA Light Load
  • Proprietary Gate Driver Design for Best EMI Reduction
  • Protection Circuitry
  • Undervoltage Lockout (UVLO)
  • Cycle-by-Cycle Valley Current Limit
  • Thermal Shutdown
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. 'Green' Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/

AP62300 Applications

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

AP62300 Pin Configuration

AP62300 Absolute Maximum Ratings

SymbolParameterRatingUnit
VINSupply Pin Voltage-0.3 to +20.0 (DC)V
VINSupply Pin Voltage-0.3 to +22.0 (400ms)V
V SWSwitch Pin Voltage-1.0 to VIN + 0.3 (DC)V
V SWSwitch Pin Voltage-2.5 to VIN + 2.0 (20ns)V
V BSTBootstrap Pin VoltageV SW - 0.3 to V SW + 6.0V
V ENEnable/UVLO Pin Voltage-0.3 to +6.0V
V FBFeedback Pin Voltage-0.3 to +6.0V
T STStorage Temperature-65 to +150° C
T JJunction Temperature+160° C
T LLead Temperature+260° C
ESD Susceptibility (Note 5)ESD Susceptibility (Note 5)ESD Susceptibility (Note 5)ESD Susceptibility (Note 5)
HBMHuman Body Model±2000V
CDMCharged Device Model±500V

AP62300 Recommended Operating Conditions

SymbolParameterMinMaxUnit
VINSupply Voltage4.218.0V
VOUTOutput Voltage0.87.0V
T AOperating Ambient Temperature-40+85° C
T JOperating Junction Temperature-40+125° C

Note:

  1. The device function is not guaranteed outside of the recommended operating conditions.

Electrical Characteristics (@ TJ = +25° C, VIN = 12V, unless otherwise specified. Min/Max limits apply across the recommended operating junction temperature range, -40° C to +125° C, and input voltage range, 4.2V to 18V, unless otherwise specified.)

SymbolParameterConditionsMinTypMaxUnit
I SHDNShutdown Supply CurrentV EN = 0V-1.5-μA
I QQuiescent Supply CurrentAP62300/AP62300T: V FB = 0.85V-155-μA
I QQuiescent Supply CurrentAP62301: V FB = 0.85V-275-μA
PORVIN Power-on Reset Rising Threshold--3.904.15V
UVLOVIN Undervoltage Lockout Falling Threshold--3.6-V
R DS(ON)1High-Side Power MOSFET On-Resistance (Note 8)--75-mΩ
R DS(ON)2Low-Side Power MOSFET On-Resistance (Note 8)--45-mΩ
I VALLEY_LIMITLS Valley Current Limit (Note 8)From source to drain3.23.74.2A
f SWOscillator FrequencyVOUT = 5V, CCM-750-kHz
t ON_MINMinimum On-Time--90-ns
t OFF_MINMinimum Off-Time--220-ns
V FBFeedback VoltageAP62300/AP62301: T A = +25° C, CCM0.7920.8000.808V
V FBFeedback VoltageAP62300/AP62301: CCM0.7840.8000.816V
V FBFeedback VoltageAP62300T: T A = +25° C, CCM0.7550.7630.770V
V FBFeedback VoltageAP62300T: CCM0.7470.7630.778V
V EN_HEN Logic High Threshold--1.201.25V
V EN_LEN Logic Low Threshold-1.041.10-V
I ENEN Input CurrentV EN = 1.5V-7.0-μA
I ENEN Input CurrentV EN = 1V1.01.52.0μA
t SSSoft-Start Time--2.5-ms
T SDThermal Shutdown (Note 8)--+160-° C
T HysThermal Shutdown Hysteresis (Note 8)--+20-° C

Note: 8. Compliance to the datasheet limits is assured by one or more methods: production test, characterization, and/or design.

Typical Performance Characteristics (AP62300/AP62301/AP62300T @ TA = +25° C, VIN = 12V, VOUT = 5V, unless otherwise specified.)

Figure 5. Power MOSFET RDS(ON) vs. Temperature

Figure 6. Feedback Voltage vs. Temperature, AP62300/AP62301

Figure 7. Feedback Voltage vs. Temperature, AP62300T

Figure 9. VIN Power-On Reset and UVLO vs. Temperature

Figure 8. ISHDN vs. Temperature

Typical Performance Characteristics (AP62300/AP62301/AP62300T @ TA = +25° C, VIN = 12V, VOUT = 5V, unless otherwise specified.) (continued)

Figure 12. Output Short Protection, IOUT = 3A

Figure 13. Output Short Recovery, IOUT = 3A

AP62300 Thermal Information

SymbolParameterRatingRatingUnit
θ JAJunction to AmbientSOT563110° C/W
θ JAJunction to AmbientTSOT2670° C/W
θ JCJunction to CaseSOT5638° C/W
θ JCJunction to CaseTSOT2612° C/W

Note: 6. Test condition for SOT563/TSOT26: Device mounted on FR-4 substrate, two-layer PCB, 2oz copper, with minimum recommended pad layout.

AP62300 Typical Application

VIN = 12V, VOUT = 5V, L = 3.3μH VIN = 12V, VOUT = 3.3V, L = 3.3μH

Figure 2. Efficiency vs. Output Current, AP62300/AP62300T

VIN = 12V, VOUT = 5V, L = 3.3μH VIN = 12V, VOUT = 3.3V, L = 3.3μH

Figure 3. Efficiency vs. Output Current, AP62301

AP62300 Package Information

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

SOT563

TSOT26

SOT563 - DimSOT563 - MinSOT563 - MaxSOT563 - Typ
A0.550.600.60
b0.150.300.20
c0.100.180.11
D1.501.701.60
E1.551.701.60
E11.101.251.20
e--0.50
e10.901.101.00
L0.100.300.20
a8 °9 °7 °
All Dimensions inmmAll Dimensions inmmAll Dimensions inmmAll Dimensions inmm
TSOT26 - DimTSOT26 - MinTSOT26 - MaxTSOT26 - Typ
A-1.00-
A10.0100.100-
A20.8400.900-
D2.8003.0002.900
E2.800 BSC2.800 BSC2.800 BSC
E11.5001.7001.600
b0.3000.450-
c0.1200.200-
e0.950 BSC0.950 BSC0.950 BSC
e11.900 BSC1.900 BSC1.900 BSC
L0.300.50-
L20.250 BSC0.250 BSC0.250 BSC
θ0°8°4°
θ14°12°-
All Dimensions inmmAll Dimensions inmmAll Dimensions inmmAll Dimensions inmm

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
AP62300TDiodes IncorporatedTSOT26
AP62300TWU-7Diodes IncorporatedSOT-23-6 Thin, TSOT-23-6
AP62300WU-7Diodes IncorporatedTSOT26
AP62300Z6-7Diodes IncorporatedSOT563
AP62301Diodes Incorporated—

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