MPS EVBL2166-D-00A Manuel utilisateur

EVBL2166-D-00A

6V, Dual 2A/2A or 3A/1A,

Low Quiescent Current,

Synchronous Buck with PG and SS

Evaluation Board

EVBL2166-D-00A Rev. 1.1 www.MonolithicPower.com 1

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DESCRIPTION

The EVBL2166-D-00A is an evaluation board

for the MP/MPQ2166 with MPS power inductor

stuffed.

MP/MPQ2166 is an internally compensated,

dual, PWM, synchronous, step-down regulator,

which operates from a 2.7V to 6V input and

generates an output voltage as low as 0.6V. It

can be configured as a 2A/2A or 3A/1A output

current regulator and is ideal for powering

portable equipment that runs on a single-cell

lithium-ion (Li+) battery due to a low 60µA

quiescent current.

The MP2166/MPQ2166 integrates dual, 55m,

high-side switches and 20msynchronous

rectifiers for high efficiency without an external

Schottky diode. The MP2166/MPQ2166 has

peak-current-mode control and internal

compensation and is capable of low dropout

configurations. Both channels can operate at

100% duty cycle.

Full protection features include cycle-by-cycle

current limit and thermal shutdown.

The EVBL2166-D-00A is assembled and tested

with QFN-18 (2mmX3mm) package.

ELECTRICAL SPECIFICATIONS

Parameter Symbol Value Units

Input Voltage VIN 2.7-6 V

Output Voltage VOUT1/ VOUT2 1.8/1.2 V

Output Current IOUT1/ IOUT2 2/2 A

3/1

FEATURES

2.7V to 6V Operating Input Range

2A/2A or 3A/1A Continuous Current

55m/20mRDS(ON)

Programmed Frequency up to 3MHz

External Sync Clock Up to 3MHz

180oPhase Shifted Operation

PG Indicators

External SS and Track

Adjustable Advanced Asynchronous Mode

(AAM) or Forced Continuous Conduction

Mode (CCM)

Output Adjustable from 0.6V to VIN

100% Duty Cycle Operation

Cycle-by-Cycle Over-Current Protection

(OCP)

Short-Circuit Protection (SCP) with Hiccup

Mode and Valley Current Detection

Thermal Shutdown

Fully Assembled and Tested

MPS Power Inductor Stuffed

APPLICATIONS

Small/Handled Devices

DVD Drivers

Smartphones and Feature Phones

Battery-Powered Devices

Portable Instruments

ll MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.

For MPS green status, please visit the MPS website under Quality

ssurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are

trademarks of Monolithic Power Systems, Inc. or its subsidiaries.

EVBL2166-D-00A – 6V, DUAL 2A/2A OR 3A/1A, SYNCHRONOUS BUCK EV BOARD

EVBL2166-D-00A Rev. 1.1 www.MonolithicPower.com 2

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EVBL2166-D-00A EVALUATION BOARD

(L x W x H) 2.5” x 2.5” x 0.2”

(6.35cm x 6.35cm x0.5cm)

Board Number MPS IC Number

EVBL2166-D-00A MP/MPQ2166GD

EVBL2166-D-00A – 6V, DUAL 2A/2A OR 3A/1A, SYNCHRONOUS BUCK EV BOARD

EVBL2166-D-00A Rev. 1.1 www.MonolithicPower.com 3

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EVALUATION BOARD SCHEMETIC

PGND1

SW1

VIN1

FB1

FB2

VIN2

SW2

PGND2

SS1

PG1

FREQ

PG2

SS2

EN2

CCM

AGND

EN1

VCC

MPQ2166

22uF

C1A

16V

22uF

16V

2.7V-6V

EN2

0.1uF

C1B

16V

EN1

100k

R10 100k

75k

R11

50V

JP1

VCC

AGND

CCMAAM

100k

C1C C1D

22uF

C2C

22uF

C2D

Vout2 1.5uH

100k

22uF

C2A

Vout1

1.5uH

22uF

C2B

VCC

0805 0805 0805 0805

0603 0603

0603

16V 16V

0805 0805

16V 16V

0805 0805

1.5nF

0603

50V

1.5nF

0603

1.2V/2A 1.8V/2A

100k

0603 100K

0603

0.1uF

16V

VIN

VEMI

GND

CIN4

FB1

47uF

CIN5

CIN3

CIN1

CIN2

0603

0.1uF

CHB CHA

R13

R14

C10

100k

R12

0603

49.9k

R18

0603

C6 C7

C11

R17

R19

R16

100k

R15

100k

PG2 PG1

Soft-Start:

1.5nF ->0.28ms

4.7nF->0.88ms

10nF -> 1.88ms

Tss= Css[nF]*Vref(0.6V)/ Iss(3.2uA)ms

Input EMC Filter

High if Vout

within +/-10%

R11 Fsw

665k350kHz

200k1MHz

75k2.25MHz

51k3MHz

Vout (V) R6/R8 (k) R18/R12 (k)

3.3 100 (1%) 22.1 (1%)

1.8 100 (1%) 49.9 (1%)

1.2 100 (1%) 100 (1%)

PGND1

SW1

VIN1

FB1

FB2

VIN2

SW2

PGND2

SS1

PG1

FREQ

PG2

SS2

EN2

CCMAGND

EN1

VCC

Package Reference

0.6V

2.25MHz

EN high: 1.6V

EN low: 0.4V

CIN5 is for damping

input C and L



EVBL2166-D-00A BILL OF MATERIALS

Qty Ref Value Description Package Manufacturer Manufactuer_P/N

4 CIN1,CIN2,

CIN3,CIN4 NS

1 FB1 NS

1 L3 NS

1 CIN5 47F Electrolytic

Capacitor; 16V SMD Jianghai VZ1-16V47

C1A, C1D,

C2A, C2B,

C2C, C2D

22F Ceramic

Capacitor;16V;X5R 0805 muRata GRM21BR61C226ME44L

2 C1B, C1C 0.1FCeramic

Capacitor;16V;X7R 0805 muRata GRM219R71C104KA01D

2 C3, C4 1.5nF Ceramic

Capacitor;50V;X7R 0603 muRata GRM188R71H153KA01D

EVBL2166-D-00A – 6V, DUAL 2A/2A OR 3A/1A, SYNCHRONOUS BUCK EV BOARD

EVBL2166-D-00A Rev. 1.1 www.MonolithicPower.com 4

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EVBL2166-D-00A BILL OF MATERIALS (continued)

Qty Ref Value Description Package Manufacturer Manufactuer_P/N

1 C5 0.1F Ceramic

Capacitor;16V;X5R 0603 muRata GRM188R61C104KA01D

6 C6, C7, C8,

C9, C10, C11 NS

2 L1, L2 1.5H Inductor; 14.5m;

6.4A SMD MPS MPL-AL4020-1R5

R1, R3, R6,

R8, R9, R10,

R12,

R17,R19

100k Film Resistor;1%; 0603 Yageo RC0603FR-07100KL

2 R5,R7 10 Film Resistor;1%; 0603 Yageo RC0603FR-0710RL

1 R18 49.9k Film Resistor;1%; 0603 Yageo RC0603FR-07105KL

R2, R4, R13,

R14,

R15,R16

1 R11 75k Film Resistor;1%; 0603 Yageo RC0603FR-0775KL

1 U1

Step-Down

Converter QFN-18 MPS MP2166GD

VIN, VEMI,

GND,

VOUT1,

GND,

VOUT2, GND

Test

Point 2.0 Golden Pin HZ

PG2, GND,

EN2, EN1,

GND, PG1,

JP1

2.54mm Test Pin any

EVBL2166-D-00A – 6V, DUAL 2A/2A OR 3A/1A, SYNCHRONOUS BUCK EV BOARD

EVBL2166-D-00A Rev. 1.1 www.MonolithicPower.com 5

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EVB TEST RESULTS

VIN = 5V, VOUT1 = 1.8V, VOUT2 = 1.2V, L1 = L2 = 1.5µH, FSW = 2.25MHz, TA= 25°C, unless otherwise

noted.

EVBL2166-D-00A – 6V, DUAL 2A/2A OR 3A/1A, SYNCHRONOUS BUCK EV BOARD

EVBL2166-D-00A Rev. 1.1 www.MonolithicPower.com 6

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EVB TEST RESULTS

(continued)

VIN = 5V, VOUT1 = 1.8V, VOUT2 = 1.2V, L1 = L2 = 1.5µH, FSW = 2.25MHz, TA= 25°C, unless otherwise

noted.

OUT2

/AC

10mV/div.

OUT1

/AC

10mV/div.

SW1

5V/div.

SW2

5V/div.

200mA/div.

OUT2

/AC

10mV/div.

OUT1

/AC

10mV/div.

SW1

5V/div.

SW2

5V/div.

500mA/div.

OUT2

/AC

2mV/div.

OUT2

1V/div.

5V/div.

OUT1

/AC

2mV/div.

SW1

5V/div.

SW2

5V/div. V

SW2

5V/div.

1A/div.

1A/div. I

500mA/div.

OUT1

1V/div.

SW1

5V/div.

500mA/div.

OUT2

1V/div.

5V/div.

SW2

5V/div.

2A/div.

OUT1

1V/div.

SW1

5V/div.

2A/div.

OUT2

1V/div.

2V/div.

SW2

5V/div.

2A/div.

OUT1

1V/div.

SW1

5V/div.

2A/div.

OUT2

1V/div.

5V/div.

SW2

5V/div.

500mA/div.

OUT1

1V/div.

SW1

5V/div.

500mA/div.

OUT2

/AC

10mV/div.

OUT1

/AC

10mV/div.

SW1

5V/div.

SW2

5V/div.

1A/div.

OUT2

1V/div.

5V/div.

SW2

2V/div.

50mA/div.

OUT1

1V/div.

SW1

2V/div.

50mA/div.

EVBL2166-D-00A – 6V, DUAL 2A/2A OR 3A/1A, SYNCHRONOUS BUCK EV BOARD

EVBL2166-D-00A Rev. 1.1 www.MonolithicPower.com 7

9/21/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

EVB TEST RESULTS

(continued)

VIN = 5V, VOUT1 = 1.8V, VOUT2 = 1.2V, L1 = L2 = 1.5µH, FSW = 2.25MHz, TA= 25°C, unless otherwise

noted.

VOUT2

1V/div.

VEN

2V/div.

VSW2

5V/div.

IL2

500mA/div.

VOUT1

1V/div.

VSW1

5V/div.

IL1

500mA/div.

VOUT2

1V/div.

VEN

2V/div.

VSW2

5V/div.

IL2

500mA/div.

VOUT1

1V/div.

VSW1

5V/div.

IL1

500mA/div.

VOUT2

1V/div.

VEN

2V/div.

VSW2

5V/div.

IL2

1A/div.

VOUT1

1V/div.

VSW1

5V/div.

IL1

1A/div.

VOUT2

1V/div.

VEN

2V/div.

VSW2

2V/div.

IL2

50mA/div.

VOUT1

1V/div.

VSW1

2V/div.

IL1

50mA/div.

VOUT2

1V/div.

VEN

2V/div.

VSW2

5V/div.

IL2

500mA/div.

VOUT1

1V/div.

VSW1

5V/div.

IL1

500mA/div.

VOUT2

1V/div.

VEN

2V/div.

VSW2

5V/div.

IL2

2A/div.

VOUT1

1V/div.

VSW1

5V/div.

IL1

2A/div.

VOUT2

1V/div.

VIN

5V/div.

VSW2

5V/div.

IL2

500mA/div.

VOUT1

1V/div.

VSW1

5V/div.

IL1

500mA/div.

VOUT2

1V/div.

VIN

5V/div.

VSW2

5V/div.

IL2

2A/div.

VOUT1

1V/div.

VSW1

5V/div.

IL1

2A/div.

VOUT2

1V/div.

VIN

2V/div.

VSW2

5V/div.

IL2

1A/div.

VOUT1

1V/div.

IL1

1A/div.

EVBL2166-D-00A – 6V, DUAL 2A/2A OR 3A/1A, SYNCHRONOUS BUCK EV BOARD

EVBL2166-D-00A Rev. 1.1 www.MonolithicPower.com 8

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EVB TEST RESULTS

(continued)

VIN = 5V, VOUT1 = 1.8V, VOUT2 = 1.2V, L1 = L2 = 1.5µH, FSW = 2.25MHz, TA= 25°C, unless otherwise

noted.

OUT2

1V/div.

SW2

5V/div.

5A/div.

OUT1

1V/div.

SW1

5V/div.

5A/div.

OUT2

1V/div.

SW2

5V/div.

5A/div.

OUT1

1V/div.

SW1

5V/div.

5A/div.

OUT2

1V/div.

SW2

5V/div.

5A/div.

OUT1

1V/div.

SW1

5V/div.

5A/div.

OUT2

1V/div.

SW2

5V/div.

5A/div.

OUT1

1V/div.

SW1

5V/div.

5A/div.

OUT2

1V/div.

SW2

5V/div.

5A/div.

OUT1

1V/div.

SW1

5V/div.

5A/div.

OUT2

1V/div.

SW2

5V/div.

5A/div.

OUT1

1V/div.

SW1

5V/div.

5A/div.

OUT2

1V/div.

SW2

5V/div.

5A/div.

OUT1

1V/div.

SW1

5V/div.

5A/div.

OUT2

1V/div.

2V/div.

SW2

5V/div.

2A/div.

OUT1

1V/div.

SW1

5V/div.

2A/div.

OUT2

1V/div.

2V/div.

SW2

5V/div.

1A/div.

OUT1

1V/div.

SW1

5V/div.

1A/div.

EVBL2166-D-00A – 6V, DUAL 2A/2A OR 3A/1A, SYNCHRONOUS BUCK EV BOARD

EVBL2166-D-00A Rev. 1.1 www.MonolithicPower.com 9

9/21/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

EVB TEST RESULTS

(continued)

VIN = 5V, VOUT1 = 1.8V, VOUT2 = 1.2V, L1 = L2 = 1.5µH, FSW = 2.25MHz, TA= 25°C, unless otherwise

noted.

OUT1

/AC

200mV/div.

SW1

5V/div.

2A/div.

OUT2

/AC

100mV/div.

SW2

5V/div.

2A/div.

OUT2

1V/div.

SW2

5V/div.

5A/div.

OUT1

1V/div.

SW1

5V/div.

5A/div.

SW1

5V/div.

2A/div.

SW2

5V/div.

2A/div.

OUT1

/AC

100mV/div.

SW1

5V/div.

1A/div.

OUT2

/AC

100mV/div.

SW2

5V/div.

1A/div.

OUT1

/AC

200mV/div.

SW1

5V/div.

2A/div.

OUT2

/AC

200mV/div.

SW2

5V/div.

2A/div.

OUT1

/AC

100mV/div.

SW1

5V/div.

1A/div.

OUT2

/AC

100mV/div.

1A/div.

EVBL2166-D-00A – 6V, DUAL 2A/2A OR 3A/1A, SYNCHRONOUS BUCK EV BOARD

EVBL2166-D-00A Rev. 1.1 www.MonolithicPower.com 10

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PRINTED CIRCUIT LAYOUT

Figure 1: Top & TOP Silk Layer Figure 2: Inner1 Layer

Figure 3: Inner2 Layer Figure 4: Bottom & Bottom Silk Layer

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