STOD32A
300 mA triple DC-DC converter for powering AMOLED displays
Data brief
Overtemperature protection
True-shutdown mode
Short-circuit protection
Package QFN16 (3.0x3.0 mm), 0.5 mm pitch
Applications
QFN16(3.0x3.0 mm)
Features
Operating input voltage range from 2.5 V to
4.5 V
300 mA output current for step-up and
inverting converters (VIN> 2.9 V)
55 mA output current for an auxiliary step-up
converter (VIN> 2.9 V)
4.6 V positive step-up converter
Programmable negative voltage from - 0.8 V
to - 4.8 V default -4.0 V
Auxiliary step-up converter positive voltage
programmable step from 5.8 V to 7.9 V
default 7.6 V
Soft-start with inrush current protection
Active matrix OLED power supply in portable
devices
Cellular phones, multimedia players,
camcorders and digital still cameras
Description
The STOD32A is a triple DC-DC converter for
AMOLED display panels. It integrates 300 mA
step-up and inverting DC-DC converters plus
auxiliary step-up converter. This device is
particularly suitable for battery operated products,
in which the major concern is overall system
efficiency. Output voltages can be programmed
by a dedicated pin, which implements SWIRE
protocol. Soft-start with controlled inrush current
limit, thermal shutdown and short-circuit
protection are integrated functions of the device.
Table 1: Device summary
Order code
Positive
voltage
Negative
voltage
Auxiliary
positive voltage
Package
Packing
STOD32ATPQR
4.6 V
-0.8 to 4.8 V
5.8 to 7.9 V
QFN16 (3x3 mm)
3000 samples per
reel
November 2015
DocID026653 Rev 2
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www.st.com
Contents
STOD32A
Contents
1
Application schematic .................................................................... 3
2
Package information ....................................................................... 4
3
QFN16 (3.0x3.0 mm) package information..................................... 5
4
Revision history .............................................................................. 7
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1
Application schematic
Application schematic
Figure 1: Application schematic
Table 2: Typical external components
Component
Manufacturer
Value
Size
L 1, L 2, L 3
TOKO
ALPS
COILCRAFT
4.7 μH
2.5x2.0x1.2
2.5x2.0x1.2
4.0x4.0x1.2
CINA, CINP, CO2, CO3
MURATA
SEMCO
22 μF
10 μF
0805
0402
0603
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Package information
2
STOD32A
Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
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QFN16 (3.0x3.0 mm) package information
QFN16 (3.0x3.0 mm) package information
Figure 2: QFN16 (3.0x3.0 mm) package outline
7185330_G
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QFN16 (3.0x3.0 mm) package information
STOD32A
Table 3: QFN16 (3.0x3.0 mm) package mechanical data
mm
Dim.
Min.
Typ.
Max.
A
0.50
0.55
0.60
A1
0.00
0.02
0.05
b
0.20
0.25
0.30
D
2.9
3.00
3.1
D2
1.55
1.70
1.80
E
2.9
3.00
3.1
E2
1.55
1.70
1.80
e
L
0.50
0.20
0.30
0.40
Figure 3: QFN16 (3.0x3.0 mm) recommended footprint
AM10265v1
All dimensions are in mm
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Revision history
Revision history
Table 4: Document revision history
Date
Revision
Changes
16-Jul-2014
1
Initial release.
03-Nov-2015
2
Updated Table 3: "QFN16 (3.0x3.0 mm) package mechanical
data".
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STOD32A
IMPORTANT NOTICE – PLEASE READ CAREFULLY
STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and
improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST
products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order
acknowledgement.
Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the
design of Purchasers’ products.
No license, express or implied, to any intellectual property right is granted by ST herein.
Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.
ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners.
Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2015 STMicroelectronics – All rights reserved
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