MIC45208-1 Module Datasheet

MIC45208-1 Datasheet, PDF, Equivalent


Part Number

MIC45208-1

Description

10A DC-to-DC Power Module

Manufacture

Microchip

Total Page 30 Pages
Datasheet
Download MIC45208-1 Datasheet


MIC45208-1
MIC45208-1/-2
26V, 10A DC-to-DC Power Module
Features
• No Compensation Required
• Up to 10A Output Current
• >93% Peak Efficiency
• Output Voltage: 0.8V to 0.85*VIN with
±1% Accuracy
• Adjustable Switching Frequency from 200 kHz to
600 kHz
• Enable Input and Open-Drain Power Good (PG)
Output
• Hyper Speed Control® (MIC45208-2) Architecture
enables Fast Transient Response
• HyperLight Load® (MIC45208-1) improves Light
Load Efficiency
• Supports Safe Start-up into Pre-Biased Output
• –40 C to +125°C Junction Temperature Range
• Thermal Shutdown Protection
• Short-Circuit Protection with Hiccup mode
• Adjustable Current Limit
• Available in 52-Pin 10 mm x 10 mm x 4 mm QFN
Package
Applications
• High-Power Density Point-of-Load (POL)
Conversion
• Servers, Routers, Networking and Base Stations
• FPGAs, DSP and Low-Voltage ASIC Power Supplies
• Industrial and Medical Equipment
Typical Application Schematic
General Description
The MIC45208-1/-2 is a synchronous, step-down regula-
tor module, featuring a unique adaptive ON-time control
architecture. The module incorporates a DC-to-DC
controller, power MOSFETs, bootstrap diode, bootstrap
capacitor and an inductor in a single package, simplifying
the design and layout process for the end user.
This highly integrated solution expedites system
design and improves product time-to-market. The
internal MOSFETs and inductor are optimized to
achieve high efficiency at a low-output voltage. The
fully optimized design can deliver up to 10A current
under a wide input voltage range of 4.5V to 26V,
without requiring additional cooling.
The MIC45208-1 uses the HyperLight Load (HLL) while
the MIC45208-2 uses Hyper Speed Control (HSC) archi-
tecture, which enables ultra-fast load transient
response, allowing for a reduction of output capacitance.
The MIC45208 offers 1% output accuracy that can be
adjusted from 0.8V to 0.85*VIN with two external
resistors. Additional features include thermal shutdown
protection, input undervoltage lockout, adjustable
current limit and short-circuit protection. The MIC45208
allows for safe start-up into a pre-biased output.
Data sheet and other support documentation can be
found on the Microchip web site at: www.microchip.com.
VIN
12V
CIN
ON
OFF
PVDD
5VDD
PG
ANODE
BST
RIA
PVIN
VIN MIC45208
FREQ
EN
VOUT
FB
RIB
SW
GND
ILIM
PGND
VOUT
1.5V/10A
CFF
RLIM
RFB1
COUT
RFB2
2017 Microchip Technology Inc.
DS20005603A-page 1

MIC45208-1
MIC45208-1/-2
Package Types
MIC45208-1/-2
52-Pin 10 mm x 10 mm QFN (MP)
(Top View)
5VDD 1
5VDD 2
PVDD 3
PVDD 4
PGND 5
PGND 6
PGND 7
KEEPOUT 8
SW 9
SW 10
SW 11
KEEPOUT 12
PVIN 13
PVIN 14
PVIN 15
PGND
PVIN ePAD
SW
VOUT ePAD
41 ANODE
40 ANODE
39 RIB
38 RIA
37 RIA
36 KEEPOUT
35 SW
34 SW
33 SW
32 SW
31 SW
30 KEEPOUT
29 VOUT
28 VOUT
27 VOUT
DS20005603A-page 2
2017 Microchip Technology Inc.


Features MIC45208-1/-2 26V, 10A DC-to-DC Power Mo dule Features • No Compensation Requ ired • Up to 10A Output Current • > 93% Peak Efficiency • Output Voltage: 0.8V to 0.85*VIN with ±1% Accuracy Adjustable Switching Frequency from 2 00 kHz to 600 kHz • Enable Input and Open-Drain Power Good (PG) Output • H yper Speed Control® (MIC45208-2) Archi tecture enables Fast Transient Response • HyperLight Load® (MIC45208-1) imp roves Light Load Efficiency • Support s Safe Start-up into Pre-Biased Output • –40 C to +125°C Junction Tempera ture Range • Thermal Shutdown Protect ion • Short-Circuit Protection with H iccup mode • Adjustable Current Limit • Available in 52-Pin 10 mm x 10 mm x 4 mm QFN Package Applications • Hig h-Power Density Point-of-Load (POL) Con version • Servers, Routers, Networkin g and Base Stations • FPGAs, DSP and Low-Voltage ASIC Power Supplies • Ind ustrial and Medical Equipment Typical A pplication Schematic General Description The MIC45208-1/-2 is a synchronous, step-down regulator module,.
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