AMSCO AS13985F27-T

Datasheet
AS13985
Micropower 150mA Low-Noise LDO
1 General Description
2 Key Features
The AS13985 is a high-performance low-dropout 150mA
voltage regulator designed for use with very-low ESR output capacitors. The device can deliver superior performance in all specifications critical to battery-powered
designs, and is perfectly suited for mobile phones, PDAs,
MP3 players, and other battery powered devices.
Stability is guaranteed with a ceramic output capacitor from
1 to 22µF. The low equivalent series resistance of these
capacitors ensures low output impedance at high frequencies.
Automatic sleep mode requires less than 1µA quiescent
current when pin EN is pulled low.
Regulation performance is excellent even under low dropout conditions, when the power transistor has to operate in
linear mode.
A 10nF bypass capacitor can be added to reduce output
noise to 30µV. The low-noise performance allows direct
connection of noise sensitive circuits without additional filtering networks.
Multiple output voltage options are available as standard
products. Contact austriamicrosystems AG for details.
!
Ultra-Low Dropout Voltage (typically
45mV @ 150mA, 0.3mV @ 1mA)
!
Supply Range: 2.5V to 5.5V
!
Output Voltage Range: 1.2V to 5.0V (in 25mV Steps)
!
Output Current: 150mA (Guaranteed)
!
Stable with Low-ESR Output Capacitor
!
Integrated Over-Temperature/Over-Current Protection
!
Low GND Pin Current (only 95µA)
!
Output Voltage Accuracy: 1%
!
Minimal External Components Required
!
High Peak-Current Capability
!
Low Shutdown Current: ≤1µA
!
Operating Temperature Junction Range: -40 to +125°C
!
Smallest Available Packages:
- 5-bump WLP
- 5-pin SOT23
The AS13985 is available in a 5-bump WLP package and a
5-pin SOT23 package.
3 Applications
The AS13985 is ideal for powering cordless and mobile
phones, MP3 players, CD and DVD players, PDAs, handheld computers, digital cameras, and any other hand-held
battery-powered device.
Figure 1. AS13985 - Block Diagram
VIN
EN
VREF
–
+
VOUT
Over-Current/
Over-Temperature
Protection
BYPASS
GND
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AS13985
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AS13985
Datasheet - P i n o u t
4 Pinout
4.1 Pin Assignments
Figure 2. Pin Assignments (Top View)
VIN 1
5
5 VOUT
4
2
GND 2
AS13985
(SOT23)
3
1
AS13985
(WLP; Top Through View)
BYPASS 3
4 EN
4.2 Pin Descriptions
Table 1. Pin Descriptions
Name
WLP
SOT23
Description
VIN
4
1
GND
2
2
Ground
Input Voltage
BYPASS
5
3
Low-Noise Operation Bypass Capacitor
EN
1
4
Logic-High Enable Input.
VEN ≥ 1.2V: VOUT is enabled.
VEN ≤ 0.4V: VOUT is disabled.
VOUT
3
5
Regulated Output Voltage
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AS13985
Datasheet - A b s o l u t e M a x i m u m R a t i n g s
5 Absolute Maximum Ratings
Stresses beyond those listed in Table 2 may cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions beyond those indicated in Section 6 Electrical
Characteristics on page 4 is not implied. Exposure to absolute maximum rating conditions for extended periods may
affect device reliability.
Table 2. Absolute Maximum Ratings
Parameter
Min
Max
Units
Input Supply Voltage (Survival)
-0.3
+7
V
Input Supply Voltage (Operating)
+2.5
+5.5
V
Shutdown Input Voltage (Survival)
-0.3
+7
V
Output Voltage (Survival)
-0.3
+7
V
Comments
IOUT (Survival)
Short-circuit protected.
Input/Output Voltage (Survival)
Power Dissipation
1
-0.3
+7
V
2
Internally limited.
Operating Junction Temperature
-40
+125
ºC
Storage Temperature Range
-65
+150
ºC
Package Body Temperature
+260
ºC
The reflow peak soldering temperature (body
temperature) specified is in accordance with IPC/
JEDEC J-STD-020D “Moisture/Reflow Sensitivity
Classification for Non-Hermetic Solid State
Surface Mount Devices”.
The lead finish for Pb-free leaded packages is
matte tin (100% Sn).
1. The output PNP structure contains a diode between pins VIN and VOUT that is normally reverse-biased. reversing the polarity of pins VIN and VOUT will activate this diode.
2. The maximum allowable power dissipation is a function of the maximum junction temperature (TJ(MAX), the
junction-to-ambient thermal resistance (ΘJA), and the ambient temperature (TAMB). The maximum allowable
power dissipation at any ambient temperature is calculated as:
P(MAX) = (TJ(MAX) - (TAMB))/ΘJA
(EQ 1)
Where:
The value of ΘJA for the SOT23 package is 220ºC/W in a typical PC-board mounting.
The value of ΘJA for the WLP package is 225ºC/W.
Note: Exceeding the maximum allowable dissipation will cause excessive device temperature and the regulator will go into thermal shutdown.
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AS13985
Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s
6 Electrical Characteristics
TAMB = 25ºC, VIN = VOUT(NOM) +0.5V, COUT = CIN = 1µF, CBYPASS = 10nF, IOUT = 1mA, VEN = 1.4V (unless otherwise specified)
Caution: Exposing the WLP package to direct light could cause device malfunction.
Table 3. Electrical Characteristics
Symbol
Parameter
VIN
Operating Input Voltage
VOUT(NOM)
- VOUT
Output Voltage Accuracy
< 2.5V VOUT
Output Voltage Accuracy
≥ 2.5V VOUT
Line Regulation
1
ΔVOUT
Load Regulation
Output AC Line
Regulation
Conditions
Min
Typ
Max
Unit
IOUT = 1mA
2.5
5.5
V
-50
50
TAMB = -40 to 125ºC
-75
75
IOUT = 1mA
-1
1
TAMB= -40 to 125ºC
-2
2
VIN = (VOUT(NOM) + 0.5V) to 4.5V,
VOUT < 3V
-0.15
0.15
VIN = (VOUT(NOM) + 0.5V) to 5.5V,
VOUT < 3V
-0.3
0.3
IOUT = 1 to 150mA, VOUT < 2.5V,
TAMB = -40 to 125ºC
0.002
IOUT = 1 to 150mA, VOUT ≥ 2.5V,
TAMB = -40 to 125ºC (for WLP)
0.0004 0.002
IOUT = 1 to 150mA, TAMB = -40 to 125ºC
(for SOT23-5), VOUT ≥ 2.5V
0.0025 0.005
VIN = VOUT(NOM) + 1V,
IOUT = 150mA, tR = tF = 30µs
1
On Mode: VEN = 1.2V, IOUT = 0mA
95
160
250
0.003
Off Mode: VEN = 0.4V,
TAMB= -40 to 125ºC, IOUT = 0mA
IOUT = 1mA
IOUT = 50mA, TAMB = -40 to 125ºC
35
IOUT = 100mA
SVR
IOUT(PK)
70
45
VEN
Peak Output Current
Enable Input Logic High
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100
RLOAD = 0Ω
500
VIN = VOUT(NOM) + 1V,
VRIPPLE = 50mV, IOUT = 50mA,
f = 1kHz
60
VIN = VOUT(NOM) + 1V,
VRIPPLE = 50mV, IOUT = 50mA,
f= 10kHz
55
VIN = 2.5 to 5.5V, TAMB = -40 to 125ºC
Revision 1.13
mA
dB
VOUT ≥ VOUT(NOM) - 5%
Enable Input Logic Low
mV
30
IOUT = 150mA, TAMB = -40 to 125ºC
Supply Voltage
Rejection
2
15
IOUT = 150mA
Short Circuit Current
2
2
IOUT = 100mA, TAMB = -40 to 125ºC
ISC
µA
0.3
IOUT = 50mA
3
2
1
IOUT = 1mA, TAMB = -40 to 125ºC
Dropout Voltage
%/mA
mVPP
On Mode: VEN = 1.2V,
IOUT = 0 to 150mA, TAMB = -40 to 125ºC
Off Mode: VEN = 0.4V, IOUT = 0mA
VDROP
0.008
130
On Mode: VEN = 1.2V, IOUT = 0 to 150mA
Quiescent Current
% of
VOUT(NOM)
%/V
On Mode: VEN = 1.2V, IOUT = 0mA,
TAMB = -40 to 125ºC
IQ
mV
300
500
mA
0.4
4
1.2
V
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AS13985
Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s
Table 3. Electrical Characteristics
Symbol
Conditions
Parameter
Min
Typ
IEN
Enable Input Current
VEN = 0.4V, VIN = 5.5V
eN
Output Noise Voltage
BW = 10Hz to 100kHz, COUT = 1µF,
IOUT = 0mA
30
CBYPASS = 10nF
150
tON
Turn On Time
5
±1
Thermal Shutdown
4, 6
Threshold
Recommended Output Capacitor
TSHDN
COUT
Max
2
nA
µVRMS
250
160
Output Capacitor
Unit
µs
ºC
2
Capacitance
1
22
ESR
5
5000
µF
mΩ
1. Temperature variations are included within the output voltage accuracy.
2. Guaranteed by design.
3. Dropout voltage is the input-to-output voltage difference at which the output voltage is 100mV below its nominal
value (does not apply to input voltages below 2.5V).
4. EN must be driven with a tR = tF < 10ms.
5. Turn on time is time measured between the enable input just exceeding the VEN high value and the output voltage just reaching 95% of its nominal value.
6. Typical thermal protection hysteresis is 20ºC.
Note: All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or
SQC (Statistical Quality Control) methods.
Figure 3. AC Line Regulation Input Voltage Test Signal
30µs
30µs
600mV
VIN =
VOUT(NOM) + 1V
600µs
4.6ms
Figure 4. SVR Input Voltage Test Signal
VIN
50mV
VOUT(NOM) + 1V
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AS13985
Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s
7 Typical Operating Characteristics
TAMB = +25ºC (unless otherwise specified)
Figure 5. Output Voltage vs. Temperature;
VIN = 3.4V, VSHDN = 1.4V, IOUT = 1mA
Figure 6. Shutdown Voltage vs. Temperature;
VOUT = 2.9V, IOUT = 10mA
3
1
Shutdown Voltage (V) .
Output Voltage (V) .
2.975
2.95
2.925
2.9
2.875
2.85
0.9
VIN = 5.5V
0.8
VIN = 3.8V
0.7
2.825
2.8
-45
-20
5
30
55
80
0.6
-45
105 130
-20
Temperature (°C)
Figure 7. Load Regulation vs. Temperature;
VIN = 3.4V, VSHDN = 1.4V, IOUT = 1 to 150mA
30
55
80
105 130
Figure 8. Line Regulation vs. Temperature;
VIN = 3.4 to 5.0V, VSHDN =1.4V, IOUT =1mA
0.0075
0.5
0.4
0.005
0.3
0.0025
Line (%/V) .
Load (%/mA) .
5
Temperature (°C)
0
-0.0025
0.2
0.1
0
-0.1
-0.005
-0.2
-0.0075
-45 -20
5
30
55
-0.3
-45
80 105 130
-20
Temperature (°C)
5
30
55
80
105 130
Temperature (°C)
Figure 9. SVR vs. Frequency; VIN = 3.9 to 3.95V,
VOUT = 2.9V, IOUT = 50mA, VSHDN = 1.4V
Figure 10. Quiescent Current vs. Temperature;
VOUT = 2.9V, VSHDN = 1.4V
300
100
90
250
80
200
60
IQ (µA) .
SVR (dB) .
70
50
40
150
VIN = 5.5V
100
30
VIN = 3.4V
20
50
10
0
0.1
2.1
4.1
6.1
8.1
10.1
0
-45
Frequency (kHz)
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-20
5
30
55
80
105 130
Temperature (°C)
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AS13985
Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s
500mV/Div
Figure 12. Turn On Time; VIN = 3.3V, CBYPASS = 10nF,
CIN = COUT = 1µF (Ceramic), tR = 20ns,
IOUT = 1mA, VOUT = 2.8V
EN
VOUT
2mV/Div
500mV/Div
VOUT
VIN
1V/Div
Figure 11. Line Transient Response; VIN = 3.8 to 4.4V,
TJ = 25ºC, IOUT = 150mA, CIN = COUT = 1µF, VOUT = 2.7V
CBYPASS = 10nF, Rise Time/Fall Time = 1µs
1ms/Div
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50µs/Div
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AS13985
Datasheet - Ty p i c a l A p p l i c a t i o n
8 Typical Application
Figure 13. Typical Application Diagram
VIN
VIN
CIN
1µF
EN
VREF
1.23V
–
+
VOUT
VOUT
Over-Current/
Over-Temperature
Protection
BYPASS
GND
AS13985
COUT
1µF
CBYPASS
0.01µF
GND
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AS13985
Datasheet - P a c k a g e D r a w i n g s a n d M a r k i n g s
9 Package Drawings and Markings
The AS13985 is available in a 5-bump WLP package and a 5-pin SOT23 package.
Figure 14. 5-bump WLP Package
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AS13985
Datasheet - P a c k a g e D r a w i n g s a n d M a r k i n g s
Figure 15. 5-pin SOT23 Package
Notes:
1. All dimensions are in millimeters.
2. Foot length is measured at the intercept point between datum
A and lead surface.
3. Package outline exclusive of mold flash and metal burr.
4. Package outline inclusive of solder plating.
5. Complies with EIAJ SC74.
Symbol
A
A1
A2
b
C
D
E
E1
L
e
e1
α
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Revision 1.13
Min
Max
0.90
1.45
0.00
0.15
0.90
1.30
0.30
0.50
0.09
0.20
2.80
3.05
2.60
3.00
1.50
1.75
0.30
0.55
0.95 Ref
1.90 Ref
0º
8º
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AS13985
Datasheet - O r d e r i n g I n f o r m a t i o n
10 Ordering Information
The AS13985 is available as the standard versions listed in Table 4. Other versions are available upon request. For
more information and inquiries contact http://www.austriamicrosystems.com/contact
Table 4. Ordering Information
Ordering Code
Marking
Description
Delivery Form
Package
AS13985F33-T
ASKK
3.3V LDO, 150mA
Tape and Reel
5-bump WLP
AS13985F30-T
ASKJ
3.0V LDO, 150mA
Tape and Reel
5-bump WLP
AS13985F29-T
ASKI
2.9V LDO, 150mA
Tape and Reel
5-bump WLP
AS13985F28-T
ASLE
2.8V LDO, 150mA
Tape and Reel
5-bump WLP
AS13985F27-T
ASKL
2.7V LDO, 150mA
Tape and Reel
5-bump WLP
AS13985F18-T
ASKM
1.8V LDO, 150mA
Tape and Reel
5-bump WLP
AS13985F12-T
ASKN
1.2V LDO, 150mA
Tape and Reel
5-bump WLP
AS13985H33-T
ASK0
3.3V LDO, 150mA
Tape and Reel
5-pin SOT23
AS13985H30-T
ASK1
3.0V LDO, 150mA
Tape and Reel
5-pin SOT23
AS13985H29-T
ASK2
2.9V LDO, 150mA
Tape and Reel
5-pin SOT23
AS13985H28-T
ASLF
2.8V LDO, 150mA
Tape and Reel
5-pin SOT23
AS13985H27-T
ASK3
2.7V LDO, 150mA
Tape and Reel
5-pin SOT23
AS13985H18-T
ASK4
1.8V LDO, 150mA
Tape and Reel
5-pin SOT23
AS13985H12-T
ASK5
1.2V LDO, 150mA
Tape and Reel
5-pin SOT23
Note: All products are RoHS compliant and Pb-free.
Buy our products or get free samples online at ICdirect: http://www.austriamicrosystems.com/ICdirect
For further information and requests, please contact us mailto:sales@austriamicrosystems.com
or find your local distributor at http://www.austriamicrosystems.com/distributor
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AS13985
Datasheet
Copyrights
Copyright © 1997-2009, austriamicrosystems AG, Tobelbaderstrasse 30, 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.
All products and companies mentioned are trademarks or registered trademarks of their respective companies.
Disclaimer
Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing
in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding
the information set forth herein or regarding the freedom of the described devices from patent infringement.
austriamicrosystems AG reserves the right to change specifications and prices at any time and without notice.
Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for
current information. This product is intended for use in normal commercial applications. Applications requiring
extended temperature range, unusual environmental requirements, or high reliability applications, such as military,
medical life-support or life-sustaining equipment are specifically not recommended without additional processing by
austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might show
deviations from the standard production flow, such as test flow or test location.
The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However,
austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to
personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or
consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the
technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of
austriamicrosystems AG rendering of technical or other services.
Contact Information
Headquarters
austriamicrosystems AG
Tobelbaderstrasse 30
A-8141 Unterpremstaetten, Austria
Tel: +43 (0) 3136 500 0
Fax: +43 (0) 3136 525 01
For Sales Offices, Distributors and Representatives, please visit:
http://www.austriamicrosystems.com/contact
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