MAX8576EUB+T by Analog Devices

3V to 28V Input, Low-Cost, Hysteretic Synchronous Step-Down Controllers


The MAX8576–MAX8579 synchronous PWM buck controllers use a hysteretic voltage-mode control algorithm to achieve a fast transient response without requiring loop compensation. The MAX8576/MAX8577 contain an internal LDO regulator allowing the controllers to function from only one 3V to 28V input supply. The MAX8578/MAX8579 do not contain the internal LDO and require a separate supply to power the IC when the input supply is higher than 5.5V. The MAX8576–MAX8579 output voltages are adjustable from 0.6V to 0.9 x VIN at loads up to 15A. Nominal switching frequency is programmable over the 200kHz to 500kHz range. High-side MOSFET sensing is used for adjustable hiccup current-limit and short-circuit protection. The MAX8576/MAX8578 can start up into a precharged output without pulling the output voltage down. The MAX8577/MAX8579 have startup output overvoltage protection (OVP), and will pull down a precharged output.

Where to Buy

Prices starting from US$2.23

Distributor Stock
Logo for Farnell
Farnell
from US$3.22
No stock
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element14
from US$3.52
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Logo for Avnet Asia
Avnet Asia
from US$2.23
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Newark Electronics
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Features

3V to 28V Supply Voltage Range
1.2% Accurate Over Temperature
Adjustable Output Voltage Down to 0.6V
200kHz to 500kHz Switching Frequency
Adjustable Temperature-Compensated Hiccup Current Limit
Lossless Peak Current Sensing
Monotonic Startup into Prebias Output (MAX8576/MAX8578)
Startup Overvoltage Protection (MAX8577/MAX8579)
Enable/Shutdown
Adjustable Soft-Start

Specifications

VIN (V) (min) 3
VIN (V) (max) 28
VOUT1 (V) (min) 0.6
VOUT1 (V) (max) 25
IOUT1 (A) (max) 15
Switch Type External
Output Adjust. Method Resistor
Synchronous Switching? Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 500
Package/Pins UMAX/10
BudgetaryPrice (See Notes) 2.36


MAX8576EUB+T Semiconductors - ICs by Analog Devices

DC/DC CTRL SYNC BUCK 500KHZ UMAX-10

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Supply Voltage Min 3V
Supply Voltage Max 28V
No. of Outputs 1 Output, 1Outputs
Duty Cycle (%) -
Controller IC Case Style µMAX
No. of Pins 10Pins
Switching Frequency 500kHz
Topology Synchronous Buck (Step Down)
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

DC DC Cntrlr Single-OUT Step Down 3V to 28V Input 10-Pin uMAX T/R | Avnet Asia
DC/DC CTRL, SYNC BUCK, 500KHZ, UMAX-10 | Farnell
Dc/Dc Ctrl, Sync Buck, 500Khz, Umax-10 | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX8576EUB+T ?

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Is the MAX8576EUB+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX8576EUB+T have stock available?

Authorised distributors including element14, Avnet Asia, Farnell and Newark Electronics have stock available or on a lead time for MAX8576EUB+T .

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