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AAT3236
300mA CMOS High Performance LDO
3236.2007.03.1.4 1
PowerLinear
™
Typical Application
AAT3236
IN
EN BYP
V
IN
V
OUT
GND GND
GND
OUT
ON/OFF
2.2μF
10nF
1μF
General Description
The AAT3236 is a MicroPower low dropout (LDO)
linear regulator designed to deliver a continuous
300mA output load current and is capable of han-
dling short duration current peaks up to 500mA.
With a very small footprint SOT23-5 package, it is
ideally suited for portable applications where low
noise, high power supply ripple rejection (PSRR),
extended battery life, and small size are critical.
The AAT3236 features fast transient response and
low output self noise for powering sensitive RF cir-
cuitry. Other features include low quiescent cur-
rent, typically 100µA, and low dropout voltage, typ-
ically 300mV at full output load current. The device
has internal output short-circuit protection and ther-
mal shutdown to prevent damage under extreme
conditions.
The AAT3236 also features a low-power shutdown
mode for longer battery life. A bypass pin is pro-
vided to improve PSRR performance by connect-
ing an external capacitor from the device reference
output to ground.
The AAT3236 is available in a Pb-free, space-sav-
ing SOT23-5 or SC70JW-8 package in nine facto-
ry-programmed voltages: 2.5V, 2.7V, 2.8V, 2.85V,
3.0V, 3.1V, 3.3V, 3.5V, or 3.6V.
Features
• 500mA Peak Output Current
• Low Dropout - Typically 300mV at 300mA
• Guaranteed 300mA Output
• High Accuracy: ±1.5%
• 100µA Quiescent Current
• High Power Supply Ripple Rejection
— 70dB at 1kHz
— 50dB at 10kHz
• Very Low Self Noise: 45µVrms
• Noise Reduction Bypass Capacitor
• Short-Circuit Protection
• Over-Temperature Protection
• Shutdown Mode for Longer Battery Life
• Low Temperature Coefficient
• Nine Factory-Programmed Output Voltages
• SOT23 5-Pin or SC70JW 8-Pin Package
Applications
• Cellular Phones
• Notebook Computers
• Personal Portable Electronics
• Portable Communication Devices
Verzeichnis
- ・ Konfiguration des Pinbelegungsdiagramms on Seite 2
- ・ Abmessungen des Paketumrisses on Seite 17
- ・ Paket-Footprint-Pad-Layout on Seite 9 Seite 13
- ・ Teilenummerierungssystem on Seite 16
- ・ Markierungsinformationen on Seite 16
- ・ Blockdiagramm on Seite 8
- ・ Typisches Anwendungsschaltbild on Seite 1
- ・ Beschreibung der Funktionen on Seite 1 Seite 8
- ・ Technische Daten on Seite 3
- ・ Anwendungsbereich on Seite 1 Seite 9 Seite 11 Seite 13
- ・ Elektrische Spezifikation on Seite 4
