Specification	MAX8548EUB+

Clock Sync	False
Control Features	Enable
Duty Cycle (Max) [Max]	95 %
Frequency - Switching	100 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 C
Operating Temperature [Min]	-40 ¯C
Output Configuration	Positive
Output Phases	1
Output Type	Transistor Driver
Package / Case	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package	10-uMAX/uSOP
Synchronous Rectifier	True
Topology	Buck
Voltage - Supply (Vcc/Vdd) [Max]	28 V
Voltage - Supply (Vcc/Vdd) [Min]	2.7 V

MAX8548 Series

Part	Function	Output Configuration	Control Features	Package / Case	Duty Cycle (Max) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Mounting Type	Frequency - Switching	Clock Sync	Output Type	Supplier Device Package	Number of Outputs	Synchronous Rectifier	Operating Temperature [Max]	Operating Temperature [Min]	Output Phases	Topology
Analog Devices Inc./Maxim Integrated MAX8548EUB+	Step-Down	Positive	Enable	10-TFSOP 10-MSOP (0.118" 3.00mm Width)	95 %	2.7 V	28 V	Surface Mount	100 kHz		Transistor Driver	10-uMAX/uSOP	1		85 C	-40 ¯C	1	Buck
Analog Devices Inc./Maxim Integrated MAX8548EUB+T	Step-Down	Positive	Enable	10-TFSOP 10-MSOP (0.118" 3.00mm Width)	95 %	2.7 V	28 V	Surface Mount	100 kHz		Transistor Driver	10-uMAX/uSOP	1		85 C	-40 ¯C	1	Buck

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	238	$ 4.39
		1100	$ 4.39
	Tube	1	$ 4.12
		10	$ 3.70
		50	$ 3.50
		100	$ 3.03
		250	$ 2.88
		500	$ 2.58
		1000	$ 2.18
		2500	$ 2.07
		5000	$ 1.99
Mouser	N/A	1	$ 5.86
		10	$ 3.85
		50	$ 3.00
		100	$ 2.73
		250	$ 2.44
		500	$ 2.26
		1000	$ 2.21

Description

General part information

MAX8548 Series

The MAX8545/MAX8546/MAX8548 are voltage-mode pulse-width-modulated (PWM), step-down DC-DC controllers ideal for a variety of cost-sensitive applications. They drive low-cost n-channel MOSFETs for both the high-side switch and synchronous rectifier, and require no external current-sense resistor. These devices can supply output voltages as low as 0.8V.The MAX8545/MAX8546/MAX8548 have a wide 2.7V to 28V input range, and do not need any additional bias voltage. The output voltage can be precisely regulated from 0.8V to 0.83 x VIN. These devices can provide efficiency up to 95%. Lossless short-circuit and current-limit protection is provided by monitoring the RDS(ON)of the low-side MOSFET. The MAX8545 and MAX8548 have a current-limit threshold of 320mV, while the MAX8546 has a current-limit threshold of 165mV. All devices feature foldback-current capability to minimize power dissipation under short-circuit condition. Pulling the COMP/EN pin low with an open-collector or low-capacitance, open-drain device can shut down all devices.The MAX8545/MAX8546 operate at 300kHz and the MAX8548 operates at 100kHz. The MAX8545/MAX8546/MAX8548 are compatible with low-cost aluminum electrolytic capacitors. Input undervoltage lockout prevents proper operation under power-sag operations to prevent external MOSFETs from overheating. Internal soft-start is included to reduce inrush current. These devices are offered in space-saving 10-pin µMAX® packages.ApplicationsCable Modems and RoutersDesktops and DesknotesGraphic Card and Video SuppliesNetworking Power SuppliesNotebook Docking Station SuppliesPCI Express® Power SuppliesSet-Top BoxesTelecom Power Supplies