SUM3559
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
(and designs) are registered trademarks of SUMSEMI Corporation.
Copyright SUMSEMI Corporation. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
www.sumsemi.com.
High Voltage, Low Power LDO
DESCRIPTION
The SUM3559 is a high voltage, low power consumption and high performance LDO. The family uses an
advanced CMOS process and a PMOSFET pass device to achieve fast start-up, with high output voltage
accuracy. The SUM3559 is stable with a 1.0 μF ~ 10 μF ceramic output capacitor, and uses a precision voltage
reference and feedback loop to achieve a worst-case accuracy of 2% over all load, line, process, and
temperature variations.
FEATURES
Wide Input Voltage Range: up to 45 V
Output Current: 350 mA
Standard Fixed Output Voltage Options: 1.8 V, 2.5 V, 3.0 V, 3.3 V, 3.6 V and 5.0 V
Other Output Voltage Options Available on Request
Low I
Q
: 2.6 µA
Low Dropout Voltage
Short current protection: 150 mA
Excellent Load / Line Transient Response
Line Regulation: 0.01 %/V typical
Package: DFN1.0 × 1.0-4, SOT23-3, SOT23-5, SOT89-3
ORDER INFORMATION
Model
Package
Ordering Number
Packing Option
SUM3559
DFN1.0 × 1.0-4
SUM3559-XXYB
Tape and Reel, 10000
SOT23-3
SUM3559-XXKA3
Tape and Reel, 3000
SOT23-5
SUM3559-XXKA5
Tape and Reel, 3000
SOT89-3
SUM3559-XXP
Tape and Reel, 1000
SOT89-3 (L-Type)
SUM3559-XXPL
Tape and Reel, 1000
*XX: When expressed as 18, the output voltage is 1.8 V; when expressed as 30 the output voltage is 3.0 V.
SUM3559
2 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
(and designs) are registered trademarks of SUMSEMI Corporation.
Copyright SUMSEMI Corporation. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
www.sumsemi.com.
PIN CONFIGURATION (Top View)
DFN1.0 × 1.0-4 SOT23-3 SOT89-3
SOT89-3 (L-Type) SOT23-5 (SUM3559-XXKA5)
PIN DESCRIPTIONS
Pin
Symbol
Description
DFN1.0 × 1.0-4
SOT23-5
SOT89-3
SOT89-3
(L-Type)
(SUM3559-
XXYB)
(SUM3559-
XXKA5)
(SUM3559-
XXP)
(SUM3559-
XXPL)
1
5
3
1
OUT
Output pin.
2
2
1
2
GND
Ground.
3
3
EN
Enable control
input, active high.
4
1
2
3
IN
Supply input pin.
4
NC
No connection.
3
21
GND OUT
IN
GND IN
OUT
1 2 3
OUT GND
IN
1 2 3
GND IN
OUT
1 2 3
1
2
3
5
4
IN
GND
EN NC
OUT
or
IN EN
GNDOUT
4
3
2
1
IN EN
GNDOUT
4
3
2
1