AS1362 austriamicrosystems AG, AS1362 Datasheet

no-image

AS1362

Manufacturer Part Number
AS1362
Description
(AS1361 / AS1362) High-PSRR Low Dropout Regulators
Manufacturer
austriamicrosystems AG
Datasheet
www.datasheet4u.com
A S 1 3 6 1 / A S 1 3 6 2
1 5 0 m A / 3 0 0 m A , U l t r a - L o w - N o i s e , H i g h - P S R R
L o w D r o p o u t R e g u l a t o r s , w i t h P O K
1 General Description
The AS1361/AS1362 are ultra-low-noise, low-dropout
linear regulators specifically designed to deliver up to
150/300mA continuous output current, and can achieve
a low 140mV dropout for 300mA load current. The LDOs
are designed and optimized to work with low-cost, small-
capacitance ceramic capacitors.
The devices are available as the standard products
listed in
Table 1. Standard Products
An integrated P-channel MOSFET pass transistor allows
the devices to maintain extremely low quiescent current
(40µA).
The AS1361/AS1362 uses an advanced architecture to
achieve ultra-low output voltage noise of 9µV
power-supply rejection-ratio of better than 80dB (up to
10kHz).
An active-Low, open-drain power-ok output indicates if
the output voltage is within regulation.
The AS1361/AS1362 requires only 1µF output capacitor
for stability at any load. When the LDO is disabled, cur-
rent consumption drops below 500nA.
The devices are available in a TSOT23 6-pin package.
Figure 1. Typical Application Circuit
www.austriamicrosystems.com
AS1361
AS1362
Model
Input
2 to 5.5V
Table
C
1µF
On
Off
IN
Load Current
1.
150mA
300mA
SHDNN
GND
IN
2
1
3
AS1361/
AS1362
Preset – 1.5 to 4.5V
Preset – 1.5 to 4.5V
Output Voltage
6
OUT
4
POK
5
BYPASS
RMS
and a
C
BYPASS
10nF
Revision 1.00
100kΩ
1.5 to 4.5V
Output
2 Key Features
3 Applications
The devices are ideal for mobile phones, wireless
phones, PDAs, handheld computers, mobile phone
base stations, Bluetooth portable radios and accesso-
ries, wireless LANs, digital cameras, personal audio
devices, and any other portable, battery-powered appli-
cation.
!
!
!
!
!
!
!
!
!
!
!
!
C
1µF
OUT
Preset Output Voltages: 1.5 to 4.5V (in 50mV steps)
Output Noise: 9µV
Power-Supply Rejection Ratio: 92dB @ 1kHz
Low Dropout: 140mV @ 300mA Load
Power-OK Output
Stable with 1µF Ceramic Capacitor for any Load
Guaranteed 150/300mA Output
1.25V Internal Reference
Extremely-Low Quiescent Current: 40µA
Excellent Load/Line Transient
Overcurrent and Thermal Protection
TSOT23 6-pin Package
SHDNN
GND
RMS
IN
1
2
3
@ 100Hz to 100kHz
AS1361/
AS1362
6 OUT
5 BYPASS
4 POK
D a t a S h e e t
1 - 13

Related parts for AS1362

AS1362 Summary of contents

Page 1

... An active-Low, open-drain power-ok output indicates if the output voltage is within regulation. The AS1361/AS1362 requires only 1µF output capacitor for stability at any load. When the LDO is disabled, cur- rent consumption drops below 500nA. The devices are available in a TSOT23 6-pin package. ...

Page 2

... SHDNN 4 5 BYPASS 6 www.austriamicrosystems.com OUT AS1361/ GND 2 5 BYPASS AS1362 SHDNN 3 4 POK TSOT23 6-pin Unregulated Input Supply. IN Ground GND Shutdown. Pull this pin low to disable the LDO. Power-OK Output. Active-Low, open-drain output indicates if the output voltage is within regulation. POK < ...

Page 3

... AS1361/AS1362 Data Sheet - Absolute Maximum Ratings Stresses beyond those listed in and functional operation of the device at these or any other conditions beyond those indicated in istics on page 4 is not implied. Exposure to absolute maximum rating conditions for extended periods may affect www ...

Page 4

... T OUT (AS1361 100µA to 300mA, T OUT (AS1362 100µA to 150mA, (AS1361) OUT I = 100µA to 300mA, (AS1362) OUT AS1361 AS1362 AS1361, OUT = 90% of nom., T AS1362, OUT = 90% of nom., T ≥ 3V OUT OUT 1 ≥ 3V 300mA, (AS1362 only) OUT OUT I = 0.05mA OUT ...

Page 5

... AS1361/AS1362 Data Sheet - Typical Operating Characteristics 0.5V OUT IN OUT www.datasheet4u.com Figure 3. Output Voltage vs. Input Voltage 3 150mA OUT 2.5 I OUT 2 1 Input Voltage (V) Figure 5. Output Voltage Accuracy vs. Temperature 1 0 ...

Page 6

... AS1361/AS1362 Data Sheet - Figure 8. Ground Pin Current vs. Input Voltage 150 125 www.datasheet4u.com 100 Input Voltage (V) Figure 10. Ground Pin Current vs. Temperature ...

Page 7

... AS1361/AS1362 Data Sheet - Figure 14. Load Transient Response 3.8V OUT www.datasheet4u.com 200µs/Div Figure 16. Line Transient Response 200µs/Div www.austriamicrosystems.com Figure 15. Load Transient Response near Dropout, = 3.3V Figure 17. Enter & ...

Page 8

... PNP pass transistor, including prolonged battery life. The P-channel MOSFET does not require a base driver, thus quiescent current is dramatically reduced. The AS1361/AS1362 LDOs do not exhibit prob- lems associated with typical PNP-based LDOs, and consume only 40µA of quiescent current in light load and 220µA in ...

Page 9

... PC board/copper traces/other materials to the surrounding air. CA Note: Pin GND of the AS1361/AS1362 provides the electrical connection to system ground and also serves as a heat sink. Connect pin GND to the system ground using a large pad or ground plane. Noise Reduction The AS1361/AS1362 noise bypass circuitry dramatically reduces output noise, exhibiting 9µ ...

Page 10

... Noise, PSRR, and Transient Response The AS1361/AS1362 are designed to deliver ultra-low noise and high PSRR, as well as low dropout and low quiescent currents in battery-powered systems. The power-supply rejection is 92dB at 1kHz and 62dB at 100kHz. Frequency on page 6) ...

Page 11

... AS1361/AS1362 Data Sheet - Package Drawings and Markings The devices are available in a TSOT23 6-pin package. Figure 19. TSOT23 6-pin Package www.datasheet4u.com Symbol Min Typ A A1 0.01 0.05 A2 0.84 0.87 b 0.30 b1 0.31 0.35 c 0.12 0.15 c1 0.08 0.13 D 2.90BSC E 2 ...

Page 12

... AS1361-BTTT-45 ASMB AS1362-BTTT-15 ASMC AS1362-BTTT-18 ASMD AS1362-BTTT-25 ASME AS1362-BTTT-26 ASMF AS1362-BTTT-27 ASMG AS1362-BTTT-28 ASMH AS1362-BTTT-285 ASMI AS1362-BTTT-30 ASMJ AS1362-BTTT-33 ASMK AS1362-BTTT-45 ASML Non-standard devices from 1.5 to 4.5V are available in 50mV steps. For more information and inquiries contact http://www.austriamicrosystems.com/contact www.austriamicrosystems.com Table 5. Output Current ...

Page 13

... AS1361/AS1362 Data Sheet Copyrights Copyright © 1997-2007, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered ®. All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. www.datasheet4u.com All products and companies mentioned are trademarks or registered trademarks of their respective companies. ...

Related keywords