ANALOG DEVICES ADPL76030 Evaluation Boards and Kits User Guide

: May 15, 2024
: Analog Devices

Table of Contents

ANALOG DEVICES ADPL76030 Evaluation Boards and Kits
Specifications
Product Usage Instructions:
FAQ
General Description
Features and Benefits
Detailed Description of Hardware
Required Equipment
Ordering Information
Kit Schematic
PCB Layout
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

ANALOG DEVICES ADPL76030 Evaluation Boards and Kits

Specifications

Input Voltage Range: 4 V to 55 V
Output Voltage: 12 V
Peak Current Limit: 10 A
Max Load Current: 4.5 A
Switching Frequency: 1.4 MHz

Product Usage Instructions:

Required Equipment:

Make sure you have the following equipment ready before starting:

Power supply
Electronic load
Digital Voltmeter (DVM)

Hardware Connections:

Connect the power supply to the board.
Connect the electronic load to the board.
Connect the EN/UVLO test point to ground.
Configure JP1 as needed based on Table 1.

Starting Operation:

Set the DC power supply output between 4 V and 24 V.
Enable the output on the power supply.
Release the EN/ULVO pin and observe VOUT rise to 12 V.

FAQ

Q: What is the input voltage range of the ADPL76030?
- A: The input voltage range is from 4 V to 55 V.
Q: What is the peak current limit of the ADPL76030?
- A: The peak current limit is 10 A.
Q: How do I measure VIN and VOUT accurately?
- A: You can place a DVM across the input and output test points to measure VIN and VOUT with greater accuracy.

General Description

The ADPL76030 evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates the features of the ADPL76030, a synchronous 4-switch buck-boost DC/DC controller in a 28-lead 4 mm x 5 mm QFN package. The proprietary peak-buck, peak-boost current-mode control scheme allows adjustable and synchronizable 600 kHz to 1.4 MHz fixed frequency operation or internal 25% triangle spread-spectrum frequency modulation for low EMI. The board accepts a continuous 4 V to 25 V input voltage with transient voltage up to 55 V. Various test points are available for monitoring (PGOOD and ISMON) and control (EN/UVLO, CTRL, and SYNC). Optional EMI input, output, and gate resistor component placeholders are included to support the option of adding, if required. Read the ADP76030 data sheet with this user guide for a proper understanding and operation of the controller and its numerous features. Component placement and board layout as part of the overall design is essential for proper electrical and thermal performance The ADPL76030 provides an input or output current monitor and power good flag. Fault protection is also provided to detect output short-circuit conditions, during which the ADPL76030 retries, latches off, or keeps running.

Features and Benefits

4-Switch Single Inductor Architecture Allows VINAbove, Below, or Equal to VOUT
Up to 95% Efficiency at 1.4 MHz
Proprietary Peak-Buck, Peak-Boost Current-Mode
Wide VIN Range: 4 V to 55 V
±2% Output Voltage Accuracy: 1 V ≤ VOUT ≤ 55 V
±3% Input or Output Current Accuracy with Monitor
Spread-Spectrum Frequency Modulation for Low EMI
No Top MOSFET Refresh Noise in Buck or Boost
Adjustable and Synchronizable: 600 kHz to 1.4 MHz
VOUT Disconnected from VIN During Shutdown Ordering Information appears at end of the datasheet

Figure 1. EVAL-ADPL76030EBV Kit Board Connections

Detailed Description of Hardware

Table 1. Performance Summary

Parameter	Condition	Min	Typical	Max
VIN		4 V		55 V
VIN at Full Load 4 A	< 60⁰C without Airflow	7 V		23 V
VOUT			12 V
Peak Current Limit	R1 = 0.005 Ω		10 A
Max Load Current	12 VIN, 12 VOUT		4.5 A
Input UVLO Off	R7 = 383 kΩ, R8 = 165 kΩ		4 V
Input UVLO On	R7 = 383 kΩ, R8 = 165 kΩ		5 V
FSW	RT = 100 kΩ		1.4 MHz

Table 2. Jumper JP1 Connection Guide

JP1 Options	Default Connection	Feature
No SSFM/SYNC	No SSFM/SYNC	Disable Sync and Spread Spectrum
SYNC		Use External Sync
SSFM On		Enable Spread Spectrum

Required Equipment

DC power supply (55 V,10 A)
Oscilloscope
Two digital multimeters to measure VIN and VOUT
Two digital multimeters to measure IIN and IOUT
Electronic load (5 A)

Procedure

Follow these steps for the required hardware connections and to start the operation of the kit.

Connect the power supply. Optionally, a DVM can be placed in series to measure the input current. A DVM can also be placed across the input test points (E1 and E2) to measure VIN delivered to the board to greater accuracy.
Connect the electronic load. Optionally, a DVM can be placed in series to measure the output current. A DVM can also be placed across the output test points (E9 and E10) to measure VOUT to greater accuracy.
Connect the EN/UVLO test point (E3) to the ground.
Configure JP1 as required (see Table 1). The default is for the external sync and spread spectrum to be off).
Ensure the DC power supply is set to output between 4 V and 24 V. Then, enable output.
Release the EN/ULVO pin and observe VOUT rise to 12 V.

Ordering Information

PART	TYPE
EVAL-ADPL76030EBZ	EV Kit

ADPL76030EBZ EV Kit Bill of Materials

Reference

Designator

| Qty| Description| Manufacturer| Part Number
---|---|---|---|---
C1| 1| 1 µF, X7S, 100 V, 10%, 0805| MURATA

TDK

| GRJ21BC72A105KE11L

C2012X7S2A105K125AE

C2| 1| 4.7 µF, X5R, 10 V, 10%, 0402| TDK| C1005X5R1A475K050BC

C3

| ****

1

| ****

0.47 µF, X5R, 16 V, 10%, 0402

| KYOCERA AVX MURATA

TAIYO YUDEN

| 0402YD474KAT2A GRM155R61C474KE01D

EMK105ABJ474KV-F

C4| 1| 2200 pF, X7R, 25 V, 10%, 0402| KYOCERA AVX

MURATA

| 04023C222KAT2A

GRM155R71E222KA01D

C5| 1| 0.022 µF, X7R, 25 V, 10%, 0402| MURATA

TDK

| GRM155R71E223KA61D

C1005X7R1E223K050BB

C6

| ****

1

| ****

1µF, X7R, 25 V, 10%, 0603

| KEMET TAIYO YUDEN

TDK

| C0603C105K3RACTU

TMK107B7105KA-T C1608X7R1E105K080AB

Device, 6.3 mm x 7.7 mm

3

| ****

22 µF, X5R, 25 V, 10%, 1206

| KYOCERA AVX SAMSUNG YAGEO| 12063D226KAT2A CL31A226KAHNNNE CC1206KKX5R8BB226

C27

| ****

1

| ****

1 µF, X5R, 16 V, 10%, 0402

| KYOCERA AVX TAIYO YUDEN

YAGEO

| 0402YD105KAT2A EMK105BJ105KV-F

CC0402KRX5R7BB105

C35, C36| 2| 0.1µF, X5R, 100 V, 10%, 0402, No Substitutes

Allowed

1206

| SUSUMU| KRL1632E-M-R010-F-T5
R3, R11| 2| 100 kΩ, 5%, 1/16 W, 0402| NIC VISHAY Dale| NRC04J104TRF CRCW0402100KJNED
R4, R6| 2| 10 kΩ, 1%, 1/16 W, 0402| NIC VISHAY Dale| NRC04F1002TRF CRCW040210K0FKED
R5| 1| 110 kΩ, 1%, 1/16 W, 0402| VISHAY Dale| CRCW0402110KFKED
R7| 1| 383 kΩ, 1%, 1/16 W, 0402| VISHAY Dale| CRCW0402383KFKED
R8| 1| 165 kΩ, 1%, 1/16 W, 0402| VISHAY Dale| CRCW0402165KFKED
---|---|---|---|---

R9

| ****

1

| ****

124 kΩ, 1%, 1/16 W, 0402

| STACKPOLE ELECTRONICS

VISHAY Dale

| RMCF0402FT124K CRCW0402124KFKED

R10

| ****

1

| ****

75 kΩ, 1%, 1/16 W, 0402

| STACKPOLE ELECTRONICS

VISHAY Dale

| RMCF0402FT75K0 CRCW040275K0FKED
R14, R15,

R16, R17, R24

| ****

5

| ****

0 Ω, 1/16 W, 0402

| NIC VISHAY Dale| NRC04ZOTRF CRCW04020000Z0ED
R18, R19| 2| 10 Ω, 5%, 1/16 W, 0402| VISHAY Dale YAGEO| CRCW040210R0JNED RC0402JR-0710RL
U1| 1| ADPL76030EBZ Controller| Analog Devices| ADPL76030EUFD#PBF ADPL76030EUFD#TRPBF
| | Optional Components Not Fitted| Footprint|
| 2| D4, D5| U-DFN1608-2|
| 9| FB1, FB2, FB3, FB4, FB5, C33, C40, C41, C42| 1206|
| 1| FB6| 1206|
| 1| L2| IND-XAL40XX|
| 5| R22, R23, R27, C29, C30| 0805|

Kit Schematic

ADPL76030EBZ EV Kit Schematic

PCB Layout

ADPL76030EBZ EV Kit PCB Layout

ADPL76030EBZ EV Kit Component Placement Guide—Top Silkscreen
ADPL76030EBZ EV Kit PCB Layout—Layer 2
ADPL76030EBZ EV Kit PCB Layout—Top
ADPL76030EBZ EV Kit PCB Layout—Layer 3
ADPL76030EBZ EV Kit PCB Layout—Bottom
ADPL76030EBZ EV Kit Component Placement Guide—Bottom Silkscreen

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