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http://www.union-ic.com Rev.07 Dec.2014

2/19

UM153xx/UM154xx

GND

VIN

VOUT

VIN

1

2

3

1

2

3

5XX

VIN

M: Month Code

UM153xxY

SOT89-3

(Top View)

4

3

2

1

VOUT

NC

GND

VIN

XX

M: Month Code

UM153xxDA

DFN4 1.8×1.2

UM154xx Series Pin Configurations & Top View

VIN

GND

EN

NC

VOUT

1

2

3

4

5

1

2

3

4

5

XXX

M: Month Code

UM154xxS

SOT23-5

1

2

3

4

5

NC

GND

EN

VIN

VOUT

GND

1

2

3

4

5

UM154XX

XX

XX: Week Code

UM154xxY

SOT89-5

(Top View)

1

VOUT

GND

NC

NC

EN

VIN

2

3

4

5

6

XXX

M: Month Code

UM154xxDA

DFN6 2.0×2.0