Datenblatt-pdf.com


AAT3216IJS-3.3-T1 Schematic ( PDF Datasheet ) - ETC

Teilenummer AAT3216IJS-3.3-T1
Beschreibung 150mA MicroPower LDO with PowerOK
Hersteller ETC
Logo ETC Logo 




Gesamt 16 Seiten
AAT3216IJS-3.3-T1 Datasheet, Funktion
AAT3216
150mA MicroPower™ LDO with PowerOK
General Description
The AAT3216 MicroPower™ Low Dropout Linear
Regulator is ideally suited for portable applications
where low noise, extended battery life and small
size are critical. The AAT3216 has been specifi-
cally designed for low output noise performance,
fast transient response and high power supply
rejection ratio (PSRR), making it ideal for powering
sensitive RF circuits.
Other features include low quiescent current, typi-
cally 70µA, and low dropout voltage which is typi-
cally less than 200mV at full output current. The
device is output short circuit protected and has a
thermal shutdown circuit for additional protection
under extreme conditions.
The AAT3216 also features a low-power shutdown
mode for extended battery life. A Power-OK open-
drain output signals when VOUT is in regulation.
The AAT3216 is available in a space saving 5-pin
SOT23 or 8-pin SC70-JW package in 12 factory
programmed voltages of 1.2V, 1.5V, 1.8V, 2.0V,
2.3V, 2.5V, 2.7V, 2.8V, 2.85, 3.0V, 3.3V, or 3.5V.
Features
SPmowaerrtSLwinietachr™™
• Low Dropout - 200mV at 150mA
• Guaranteed 150mA Output
• High accuracy ±1.5%
• 70µA Quiescent Current
• High Power Supply Ripple Rejection
• Low self noise
• PowerOK (POK) Output
• Fast line and load transient response
• Short circuit protection
• Over-Temperature protection
• Uses Low ESR ceramic capacitors
• Shutdown mode for longer battery life
• Low temperature coefficient
• 12 Factory programmed output voltages
• SOT23 5-pin or SC70-JW 8-pin package
Applications
• Cellular Phones
• Notebook Computers
• Desktop Computers
• Portable Communication Devices
• Personal Portable Electronics
• Digital Cameras
Typical Application
VIN
GND
IN
ON/OFF
EN
1µF
AAT3216
GND
OUT
POK
100k
VOUT
POK
2.2µF
GND
3216.2004.01.0.94
1






AAT3216IJS-3.3-T1 Datasheet, Funktion
AAT3216
150mA MicroPower™ LDO with PowerOK
Typical Characteristics
(Unless otherwise noted, VIN = 5V, TA = 25°C)
Turn On Time and POK Delay
VENABLE (2V/div)
VOUT (500mV/div)
VPOK (500mV/div)
Time (10µs/div)
Turn Off Time with POK Delay
VEN (2V/div)
VPOK (2V/div)
VOUT (2V/div)
Time (200µs/div)
Line Transient Response
6
5 VIN
4
3
2
1
0 VOUT
-1
-2
Time (100 µs/div)
3.25
3.20
3.15
3.10
3.05
3.00
2.95
2.90
2.85
Load Transient Response
2.90
2.85
2.80
2.75
2.70
2.65
2.60
VOUT
IOUT
100 µs/div
500
400
300
200
100
0
-100
Over Current Protection
1200
1000
800
600
400
200
0
-200
Time (20 ms/div)
POK Output Response
VIN (2V/div)
VOUT (2V/div)
VPOK (1V/div)
Time (200µs/div.)
6 3216.2004.01.0.94

6 Page









AAT3216IJS-3.3-T1 pdf, datenblatt
AAT3216
150mA MicroPower™ LDO with PowerOK
must be operated in a duty cycled mode. Refer to
the following calculation for duty cycle operation:
PD(MAX) is assumed to be 211mW
IGND = 150µA
IOUT = 150mA
VIN = 4.2 volts
VOUT = 2.5 volt
%DC=100(PD(MAX)/((VIN-VOUT)IOUT+(VINxIGND))
%DC=100(211mW/((4.2V-2.5V)150mA+(4.2Vx150µA))
%DC = 85.54%
For a 150mA output current and a 2.7volt drop
across the AAT3216 at an ambient temperature of
85°C, the maximum on time duty cycle for the
device would be 85.54%.
The following family of curves show the safe oper-
ating area for duty cycled operation from ambient
room temperature to the maximum operating level.
Device Duty Cycle vs. VDROP
VOUT = 2.5V @ 25 C
3.5
3
2.5
2
1.5
1
0.5
0
0
200mA
10 20 30 40 50 60 70 80 90 100
Duty Cycle (%)
Device Duty Cycle vs. VDROP
VOUT= 2.5V @ 50 C
3.5
3
2.5
2
1.5
1
0.5
0
0
200mA
150mA
10 20 30 40 50 60 70 80 90 100
Duty Cycle (%)
Device Duty Cycle vs.
VOUT = 2.5V @ 85 C
VDROP
3.5
3
2.5
2
1.5
1
0.5
0
0
200mA
150mA
100mA
10 20 30 40 50 60 70 80 90 100
Duty Cycle (%)
12 3216.2004.01.0.94

12 Page





SeitenGesamt 16 Seiten
PDF Download[ AAT3216IJS-3.3-T1 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
AAT3216IJS-3.3-T1150mA MicroPower LDO with PowerOKETC
ETC

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche