XR77128ELB-F

MaxLinearExtended

-40℃~+125℃ 105kHz~1.23MHz 4 4.75V~25V 550uA 600mV~5.5V Adjustable Buck Buck External Yes QFN-44-EP(7x7) DC-DC Converters ROHS

Datasheet

Part id: maxlinear/XR77128ELB-F
Category: DC DC Converters
Package: QFN-44-EP(7x7)
Pins: 2
In stock: 0 at JLCPCB (C1530010)

Overview

The XR77128ELB-F is a DC DC Converter made by MaxLinear in a QFN-44-EP(7x7) package with 45 pins. -40℃~+125℃ 105kHz~1.23MHz 4 4.75V~25V 550uA 600mV~5.5V Adjustable Buck Buck External Yes QFN-44-EP(7x7) DC-DC Converters ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:XR77129ELB-F, from EasyEDA) and its footprint (EasyEDA_Cloud:QFN-44_L7.0-W7.0-P0.50-BL-EP5.2, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C1530010).

Symbol

EasyEDA_Cloud:XR77129ELB-FFrom EasyEDA

Footprint

EasyEDA_Cloud:QFN-44_L7.0-W7.0-P0.50-BL-EP5.2From EasyEDA

Pinout

The pins of the XR77128ELB-F
Pin	Name	Type
1	LDOOUT	Unspecified
2	AGND	Unspecified
3	CPLL	Unspecified
4	AVDD	Unspecified
5	VOUT1	Unspecified
6	VOUT2	Unspecified
7	VOUT3	Unspecified
8	VOUT4	Unspecified
9	GPIO0	Unspecified
10	GPIO1	Unspecified
11	SDA	Unspecified
12	SCL	Unspecified
13	PSIO0	Unspecified
14	PSIO1	Unspecified
15	PSIO2	Unspecified
16	DVDD	Unspecified
17	DGND	Unspecified
18	BST4	Unspecified
19	GH4	Unspecified
20	LX4	Unspecified
21	GL4	Unspecified
22	GL_RTN4	Unspecified
23	VCCD3-4	Unspecified
24	BST3	Unspecified
25	GH3	Unspecified
26	LX3	Unspecified
27	GL3	Unspecified
28	GL_RTN3	Unspecified
29	BST2	Unspecified
30	GH2	Unspecified
31	LX2	Unspecified
32	GL2	Unspecified
33	GL_RTN2	Unspecified
34	VCCD1-2	Unspecified
35	BST1	Unspecified
36	GH1	Unspecified
37	LX1	Unspecified
38	GL1	Unspecified
39	GL_RTN1	Unspecified
40	ENABLE	Unspecified
41	VCC	Unspecified
42	BFB	Unspecified
43	V5EXT	Unspecified
44	LDO5	Unspecified
45	EP	Unspecified

Parameters

Features: Overcurrent Protection, Light load efficient mode, Adjustable soft-start, Built-in LDO regulator
Frequency - Switching: 105kHz~1.23MHz
Function: Step-down type
Number of Outputs: 4
Operating Temperature: -40℃~+125℃
Output Type: Adjustable
Output Voltage: 600mV~5.5V
Quiescent Current: 550uA
Switch tube (built-in/external): External
Synchronous Rectifier: Yes
Topology: Buck
Voltage - Supply: 4.75V~25V

Order codes

XR77128ELB-FLCSC C1530010

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Questions

Is there a KiCad symbol and footprint for the XR77128ELB-F?

Yes. The symbol is EasyEDA_Cloud:XR77129ELB-F and the footprint EasyEDA_Cloud:QFN-44_L7.0-W7.0-P0.50-BL-EP5.2, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the XR77128ELB-F?

QFN-44-EP(7x7), with 45 pins. Its footprint is drawn on this page.

Where is the XR77128ELB-F datasheet?

MaxLinear publishes it: the Datasheet link on this page opens it.

Where can I order the XR77128ELB-F?

JLCPCB lists it as part C1530010, with 0 in stock; the sellers' links on this page open their listings.

What can replace the XR77128ELB-F?

Parts like it in the library: the LTC3877EUK#PBF by Analog Devices, the LTC3877EUK#TRPBF by Analog Devices, the LTC3877IUK#PBF by Analog Devices and the LTC3877IUK#TRPBF by Analog Devices. Check their datasheets: a part that fits the footprint may still differ in its ratings.