LTC9111

20

Rev. 0

For more information www.analog.com



ANALOG DEVICES, INC. 2022

09/22

www.analog.com

RELATED PARTS

TYPICAL APPLICATION

Circuit for Class 15: 55V, 52W

SPoE DIFFERENTIAL INDUCTOR (L1):

TDK, PID120H-560M

COILCRAFT, MSD1278H-563

SPoE COMMON MODE CHOKE (L2):

BOURNS, SRF1306-600Y

L3

INPUT BRIDGE RECTIFIER HIGH SIDE DIODES (D1, D2):

NEXPERIA, PMEG10020AELRX

INPUT BRIDGE RECTIFIER LOW SIDE FETS (M4, M5):

NEXPERIA, BUK9M120-100EX

DUAL FET: NEXPERIA, BUK9K134-100EX

INPUT TVS (D3):

NEXPERIA, PTVS58VP1UTP

PD HOT SWAP FET (M1):

NEXPERIA, PSMN075-100MSEX

DATA COMMON MODE CHOKE (L3):

BOURNS, DR334A-475ME

TDK, B82793C0475N265

DATA TRANSFORMER (T1):

TDK, ICI70CGI-222N

*R5 VALUE DEPENDS ON COMMON MODE IMPEDANCE OF CABLE.

SCCP PULLDOWN FETS (M2, M3):

ONSEMI, BSS123LT1G

220nF

M1

CGATE

R1

M5

M4

RGATE

D1

D2

M2

C2

C1

CSTBY

M3

R3

R4

L1

CBULK

D3

RBULK

STBY

SNS1

SNS2

IN

GND

GATE

EN

CLASSC

CLASSV

ADIN1100

LTC9111

OUT

LGATE1

LGATE2

SCCP

22nF

100V

NPO

3.3

1/4W

2.2µF

6.3V

3.3

1/4W

3.3

1/4W

150nF

100V

X7R

47nF

100V

X7R

100V

X7R

220nF

100V

X7R

FROM

PSE

40

1/4W

10k

BSS123

BSS123

T1

47 F

100V

IN

GND

EN

ISOLATED/

NON-ISOLATED

DC/DC

REGULATOR

9111 TA02

1M

1206

1M

1206

L2

R2

100

C3

47nF

100V

X7R

22nF

100V

X7R

22nF

100V

X7R

R5*

75

•

•

10k

1206

10k

1206

OUT+

OUT–

VREG

PART NUMBER

DESCRIPTION

COMMENTS

LTC4296-1

IEEE 802.3cg SPoE 5-port PSE Controller

Transformer Isolation, Fully Compliant IEEE 802.3bt Type 3 and Type 4;

Supports IEEE 802.3af, IEEE 802.3at and IEEE 802.3bt PDs

ADIN1100

IEEE 802.3cg 10Base-T1L Ethernet PHY

Low Power, Single Port Transceiver; Compliant with IEEE 802.3cg-2019

Ethernet Standard for Long Reach SPE

ADIN2111

Low Complexity, 2-Port Ethernet Switch with Integrated

10Base-T1L PHYs

Low Power, Low Complexity, Two-Ethernet Ports Switch and One SPI Port

ADIN1110

Robust, Industrial, Low Power 10Base-T1L Ethernet

MAC-PHY

Ultralow Power, Single Port Transceiver; Compliant with IEEE 802.3cg-2019

Ethernet Standard for Long Reach SPE

LT8301

42VIN Micropower No-Opto Isolated Flyback Converter

with 65V/1.2A Switch

Low IQ Monolithic No-Opto Flyback 5-Lead TSOT-23

LT8303

100VIN Micropower Isolated Flyback Converter with

150V/450mA Switch

Low IQ Monolithic No-Opto Flyback, 5-Lead TSOT-23

LT8331

Low IQ Boost/SEPIC/Flyback/Inverting Converter with

0.5A, 140V Switch

VIN = 4.5V to 100V, VOUT(MAX) =140V, IQ = 6µA (Burst Mode® Operation),

MSOP-16(12)E Package

LT8309

Secondary-Side Synchronous Rectifier Driver

4.5V ≤ VCC ≤ 40V, Fast Turn-On and Turn-Off, 5-Lead TSOT-23

LT8607

42V, 750mA, 93% Efficiency, 2.2MHz Synchronous

Step-Down DC/DC Converter

VIN = 3V to 42V, VOUT(MIN) = 0.778V, IQ = 6µA, ISD < 1µA, MSOP-10E

Package

LT8619

60V, 1.2A Synchronous Monolithic Buck Regulator with

6μA Quiescent Current

VIN = 3V to 60V, VOUT(MIN) = 3.3V, IQ = 2.5µA, ISD < 1µA, 3mm × 3mm

DFN-10, MSOP-16E Packages

LT8641

65V, 3.5A Synchronous Step-Down Silent Switcher®

with 2.5μA Quiescent Current

VIN(MIN) = 3V, VIN(MAX) = 65V, VOUT(MIN) = 0.81V, IQ = 2.5µA, ISD < 1µA,

3mm × 4mm QFN-18