MAX8860 Low-Dropout, 300mA Linear Regulator in µMAX

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The MAX8860 low-noise, low-dropout linear regulator operates from a +2.5V to +6.5V input and is guaranteed to deliver 300mA. Typical output noise for this device is 60µV_RMS, and typical dropout is 105mV at 200mA. In addition to the six available preset output voltages (+1.8V, +2.5V, +2.77V, +2.82V, +3V, and +3.3V), the Dual Mode™ feature allows the device to be configured as an adjustable output regulator from +1.25V to +6.5V.

Designed with an internal P-channel MOSFET pass transistor, the MAX8860 has a low 120µA supply current. An output fault-detection circuit indicates loss of regulation. Other features include a 10nA, logic-controlled shutdown mode, short-circuit and thermal-shutdown protection, and reverse battery protection. The MAX8860 is available in a miniature 8-pin µMAX® package.

Key Features

Applications/Uses

High Output Current (300mA)
Low Output Voltage Noise: 60µV_RMS
Low 105mV Dropout at 200mA Output
Low 120µA No-Load Supply Current
Thermal-Overload and Short-Circuit Protection
Reverse Battery Protection
10nA Logic-Controlled Shutdown
Active-low FAULT Indicator
Small, Space-Saving µMAX Package (1.1mm max height)
Small 2.2µF Output Capacitor Saves Space and Cost

	DSP Core Power
	Electronic Planners
	Handheld Instruments (PDAs, Palmtops)
	Palmtop Computers
	PCMCIA Cards
	Wireless Handsets

Key Specifications: Linear Regulators

Part Number

Regulators per Pkg.

Min. V_IN (V)

Max. V_IN (V)

Preset V_OUT (V)

Min. Adjustable V_OUT (V)

Max. Adjustable V_OUT (V)

Typ. V_DROPOUT@ Rated I_LOAD (V)

Rated I_LOAD (mA)

Max. I_CC (µA)

Low Battery/ Power Fail Output

POK/ Reset Output

POK/ Reset Output Type

Nominal POK/Reset Threshold (V)

Watchdog

Reverse Battery Protection

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^**

MAX8860

2.5

6.5

1.8
2.5
2.77
2.82
3.0
3.3

1.25

6.5

0.15

300

270

POK

Open Drain Active Low

Vout-4%

Yes

uMAX/8

-40 to +85

$0.89 @ 1k

See All Linear Regulators (138)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.