MAX8869 1A, MicroCap, Low-Dropout, Linear Regulator

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The MAX8869 low-dropout linear regulator operates from a +2.7V to +5.5V input and delivers a guaranteed 1A load current with a low 200mV dropout. The high-accuracy (±1%) output voltage is preset at +5V, +3.3V, +2.5V, +1.8V, or +1.0V or is adjustable from +0.8V to +5V with an external resistor-divider.

The MAX8869 uses MicroCap™ technology and requires only a small 1µF output capacitor for guaranteed stability. An internal PMOS pass transistor allows low 500µA supply current, making this regulator useful for networking and telecom hardware as well as battery-operated equipment. Other features include soft-start, low-power shutdown, short-circuit protection, and thermal shutdown protection.

The MAX8869 is available in a 1.5W, 16-pin TSSOP package, which is 30% smaller than a SOT223 and only 1.1mm high.

Key Features

Applications/Uses

Guaranteed 1A Output Current
Stable with C_OUT = 1µF
Low 200mV Dropout at 1A
±1% Output Voltage Accuracy
- Preset at +5V, +3.3V, +2.5V, +1.8V, or +1.0V
- and Adjustable from +0.8V to +5.0V
54dB PSRR at 100kHz
Adjustable Soft-Start
3ms Reset Output
Foldback Output Current Limit
Thermal Overload Protection
High-Power 16-Pin TSSOP Package (1.5W)
30% Smaller than SOT223 (only 1.1mm high)

	Mobile Phone Base Stations
	Network Equipment
	Notebook Computers
	Personal Computing
	Telecom Hardware

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)

Min. Reset Pulse Width (ms)

Watchdog

Reverse Battery Protection

Package

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

Operating Temp. Range (°C)

Price^**

MAX8869

2.7

5.5

1.0
1.8
2.5
3.3
5.0

0.8

0.2

1,000

2000

Reset

Open Drain Active Low

Vout-8%

TSSOP/16

-40 to +85

$1.65 @ 1k

See All Linear Regulators (141)

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.