EZ55Z3L data sheet
1
www.semtech.com
EZ55Z3L
0.25 Amp Positive
Voltage Regulators
POWER MANAGEMENT
Revision 3, July 2002
Description
K
External capacitor not required for stability
K
Low dropout performance
K
.ixed 3.3V or adjustable (down to 1.25V) options
available
K
Line regulation typically 0.015%
K
Load regulation typically 0.1%
K
SOT-223 package
The EZ55Z3L voltage regulators are monolithic integrated
circuits designed for use in applications requiring a well
regulated positive output voltage with low input-to-
output differential voltage requirements.
Outstanding features include full power usage up to
250mA of load current, internal current limiting and
thermal shutdown. Safe area protection on the die is
also included, providing protection of the series pass
transistor under most operating conditions. The SOT-223
package is available for cost effective applications.
.ixed Voltage Regulator
Adjustable Voltage Regulator
.eatures
Typical Application Circuits
+
=
2
R
1
R
1
250
.
1
V
OUT
2
2002 Semtech Corp.
www.semtech.com
EZ55Z3L
POWER MANAGEMENT
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0
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/
%
Note:
(1) Specifications are applicable for a power dissipation of 2.5W and are only achievable over a limited range of
V
IN
- V
OUT
.
Unless otherwise specified: (V
IN
- V
OUT
) = 1.45V to 10V and I
OUT
= 10mA to 250mA. Values in bold apply over the full operating temperature range.
Absolute Maximum Ratings
Electrical Characteristics
Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified
in the Electrical Characteristics section is not implied.
3
2002 Semtech Corp.
www.semtech.com
EZ55Z3L
POWER MANAGEMENT
r
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=
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2
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0
6
2
7
B
d
Notes:
(1) Specifications are applicable for a power dissipation of 2.5W and are only achievable over a limited range of
V
IN
- V
OUT
.
(2) Low duty cycle pulse testing with Kelvin connections required. Changes in output voltage due to heating effects
are covered under the specification for thermal regulation.
(3) 30ms pulse.
(4) Bandwidth of 10Hz to 10kHz
(5) 120Hz input ripple, 1 dB less for each volt increase above 3.3V Min.; C
OUT
& C
ADJ
(for ADJ) = 25..
(6) This device is ESD sensitive. Use of standard ESD handling handling precautions is required.
Unless otherwise specified: (V
IN
- V
OUT
) = 1.45V to 10V and I
OUT
= 10mA to 250mA. Values in bold apply over the full operating temperature range.
Electrical Characteristics (Cont.)
4
2002 Semtech Corp.
www.semtech.com
EZ55Z3L
POWER MANAGEMENT
Notes:
(1) Where X denotes voltage options. Available voltage
is: 3.3V. Replace X with ADJ for adjustable version (1.25
to 24V).
(2) Only available in tape and reel packaging. A reel
contains 2500 devices.
e
c
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c
a
P
R
T
.
X
S
-
L
3
Z
5
5
Z
E
)
2
(
)
1
(
3
2
2
-
T
O
S
Pin Configurations
Ordering Information
N
I
P
N
O
I
T
C
N
U
F
1
D
N
G
/
J
D
A
2
T
U
O
3
N
I
T
U
O
s
i
b
a
T
3
2
2
-
T
O
S
Block Diagram
5
2002 Semtech Corp.
www.semtech.com
EZ55Z3L
POWER MANAGEMENT
Outline Drawing - SOT-223
Land Pattern - SOT-223
Semtech Corporation
Power Management Products Division
200 .lynn Road, Camarillo, CA 93012
Phone: (805)498-2111 .AX (805)498-3804
Contact Information
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