Microchip MIC2128 Manual


Læs nedenfor 📖 manual på dansk for Microchip MIC2128 (36 sider) i kategorien Ikke kategoriseret. Denne guide var nyttig for 5 personer og blev bedømt med 4.5 stjerner i gennemsnit af 2 brugere

Side 1/36
2016-2020 Microchip Technology Inc. DS20005620F-page 1
MIC2128
Features
Hyper Speed Control® Architecture Enables:
- High Input to Output Voltage Conversion
Ratio Capability
- Any Capacitor™ Stable
- Ultra-Fast Load Transient Response
Wide 4.5V to 75V Input Voltage Range
Adjustable Output Voltage from 0.6V to 30V
270 kHz to 800 kHz Programmable Switching
Frequency
Built-in 5V Regulator for Single-Supply Operation
Auxiliary Bootstrap LDO for Improving System
Efficiency
Internal Bootstrap Diode
Adjustable Soft Start Time
Enable Input and Power Good Output
Programmable Current Limit
Hiccup Mode Short-Circuit Protection
Internal Compensation and Thermal Shutdown
Supports Safe Start-Up into a Prebiased Output
AEC-Q100 Qualified (VAO suffix)
Applications
Networking/Telecom Equipment
Base Station, Servers
Distributed Power Systems
Industrial Power Supplies
Automotive Power Supplies
General Description
The MIC2128 is a constant-frequency synchronous
buck controller featuring a unique adaptive on-time
control architecture with external soft start. The
MIC2128 operates over an input voltage range from
4.5V to 75V.The output voltage is adjustable down to
0.6V with a guaranteed accuracy of ±1%. The device
operates with programmable switching frequency from
270 kHz to 800 kHz.
The MIC2128 features an external soft start pin (SS)
which allows the user to adjust output soft start time to
reduce inrush current from mains during start-up. The
MIC2128 features an auxiliary bootstrap LDO which
improves the system efficiency by supplying the
MIC2128 internal circuit bias power and gate drivers
from output of the converter. A logic level enable (EN)
signal can be used to enable or disable the controller.
The MIC2128 can start-up monotonically into a
prebiased output. The MIC2128 features an open drain
power good signal (PG) which signals when the output
is in regulation and can be used for simple power
supply sequencing purpose.
The MIC2128 offers a full suite of protection features to
ensure protection of the IC during Fault conditions.
These include undervoltage lockout to ensure proper
operation under power-sag conditions, “hiccupmode
short-circuit protection and thermal shutdown.
The MIC2128 is available in a 16-pin 3 mm x 3 mm
VQFN package, with an operating junction temperature
range from -40°C to +125°C.
Typical Application Circuit
PVDD
VDD
PG
EN
SS
FREQ EXTVDD
FB
ILIM
SW
BST
VIN VIN
4.5V to 75V
VOUT
5V@5A
VOUT
VIN
4.7 µF
2.2 µFX3
47 µF
10 µH
0.1 µF
0.1 µF
4.7 nF
1 µF
4.7 µF
2.2ё
18 kё
7.5 kё
1 kё
100 kё
60 kё
1.5 kё
VIN
MIC2128
PGND
AGND
DH
DL
10 nF
330 µF
+
0.1 µF
Q1
Q2
L1
C1
Q1,Q2:SiR878ADP
L1: SRP1265A-100M, Bourns
C1: 10SVP330M
75V, Synchronous Buck Controller Featuring Adaptive
On-Time Control with External Soft Start


Produkt Specifikationer

Mærke: Microchip
Kategori: Ikke kategoriseret
Model: MIC2128

Har du brug for hjælp?

Hvis du har brug for hjælp til Microchip MIC2128 stil et spørgsmål nedenfor, og andre brugere vil svare dig




Ikke kategoriseret Microchip Manualer

Microchip

Microchip PD81101 Manual

23 December 2024
Microchip

Microchip ATECC608B Manual

4 September 2024
Microchip

Microchip HV860 Manual

4 September 2024
Microchip

Microchip EVB-LAN9255 Manual

4 September 2024
Microchip

Microchip LX4580 Manual

4 September 2024
Microchip

Microchip LX7720 Manual

4 September 2024
Microchip

Microchip AT32UC3A364 Manual

2 September 2024

Ikke kategoriseret Manualer

Nyeste Ikke kategoriseret Manualer

Smeg

Smeg KIT6PX Manual

23 December 2024
Smeg

Smeg KIT6CX Manual

23 December 2024
Smeg

Smeg GTA-6 Manual

23 December 2024