MIC45212-1 Module Datasheet

MIC45212-1 Datasheet, PDF, Equivalent


Part Number

MIC45212-1

Description

14A DC-to-DC Power Module

Manufacture

Microchip

Total Page 30 Pages
Datasheet
Download MIC45212-1 Datasheet


MIC45212-1
MIC45212-1/-2
26V, 14A DC-to-DC Power Module
Features
• No Compensation Required
• Up to 14A 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 Output
• Hyper Speed Control® (MIC45212-2) Architecture
enables Fast Transient Response
• HyperLight Load® (MIC45212-1) 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 64-Pin 12 mm x 12 mm x 4 mm QFN
Package
Applications
• High-Power Density Point-of-Load 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 MIC45212 is a synchronous, step-down regulator
module, featuring a unique adaptive ON-time control
architecture. The module incorporates a DC-to-DC con-
troller, 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 inter-
nal MOSFETs and inductor are optimized to achieve
high efficiency at a low output voltage. The fully opti-
mized design can deliver up to 14A current under a
wide input voltage range of 4.5V to 26V, without requir-
ing additional cooling.
The MIC45212-1 uses the HyperLight Load (HLL) while
the MIC45212-2 uses the Hyper Speed Control (HSC)
architecture, which enables ultra-fast load transient
response, allowing for a reduction of output capaci-
tance. The MIC45212 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 cur-
rent limit and short-circuit protection. The MIC45212
allows for safe start-up into a pre-biased output.
VIN
12V
CIN
ON
OFF
PVDD
5VDD
PG
ANODE
BST
RIA
PVIN
VIN MIC45212
FREQ
VOUT
FB
RIB
SW
EN
GND
ILIM
PGND
VOUT
0.8V to 0.85 * VIN/Up to 14A
CFF
RFB1
COUT
RLIM
RFB2
2018 Microchip Technology Inc.
DS20005607B-page 1

MIC45212-1
MIC45212-1/-2
Package Types
MIC45212-1/-2
64-Pin 12 mm x 12 mm x 4 mm QFN (Top
View)
GND 1
PVDD
PVDD
ILIM
PGND
2
3
4
5
PGND
SW
6
7
SW 8
SW 9
SW 10
KEEPOUT 11
PVIN
PVIN
PVIN
PVIN
PVIN
PVIN
PVIN
12
13
14
15
16
17
18
64 63 62 61 60 59 58 57 56 55 54 53 52 51
PGND
BST
SW
PVIN ePAD
VOUT ePAD
19 20 21 22 23 24 25 26 27 28 29 30 31 32
50 ANODE
49 ANODE
48 RIB
47 RIA
46 RIA
45 KEEPOUT
44 SW
43 SW
42 SW
41 SW
40 SW
39 SW
38 SW
37 KEEPOUT
36 VOUT
35 VOUT
34 VOUT
33 VOUT
DS20005607B-page 2
2018 Microchip Technology Inc.


Features MIC45212-1/-2 26V, 14A DC-to-DC Power Mo dule Features • No Compensation Requ ired • Up to 14A 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 Output • Hyper Speed Control® (MIC45212-2) Architectu re enables Fast Transient Response • HyperLight Load® (MIC45212-1) improves Light Load Efficiency • Supports Saf e Start-up into Pre-Biased Output • 40°C to +125°C Junction Temperature Range • Thermal Shutdown Protection • Short-Circuit Protection with Hiccu p mode • Adjustable Current Limit • Available in 64-Pin 12 mm x 12 mm x 4 mm QFN Package Applications • High-Po wer Density Point-of-Load Conversion Servers, Routers, Networking, and Bas e Stations • FPGAs, DSP and Low-Volta ge ASIC Power Supplies • Industrial a nd Medical Equipment Typical Applicatio n Schematic General Description The MIC45212 is a synchronous, step-down regulator module, featuring a un.
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