Semtech EZ55Z3L-Z3.3TR 0.25 amp positive voltage regulator Datasheet

EZ55Z3L
0.25 Amp Positive
Voltage Regulators
POWER MANAGEMENT
Description
Features
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The EZ55Z3L voltage regulators are monolithic integrated
circuits designed for use in applications requiring a well
regulated positive output voltage with low input-tooutput 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. TO-92 and
SOT-223 packages are available for cost effective
applications.
External capacitor not required for stability
Low dropout performance
Five fixed voltage options: 3.3V, 5V, 9V, 12V, 24V
Adjustable output down to 1.25V
Line regulation typically 0.015%
Load regulation typically 0.1%
TO-92 and SOT-223 packages
Typical Application Circuits
Fixed Voltage Regulator
Adjustable Voltage Regulator
R1 

VOUT = 1.250 • 1 +

R
2

Revision 10/2000
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EZ55Z3L
POWER MANAGEMENT
Absolute Maximum Ratings
Parameter
Sy mbol
Maximum
U nits
Operati ng Input Voltage
VIN
VOUT + 10
V
Power D i ssi pati on(1)
PD
2.5
W
Thermal Resi stance Juncti on to Ambi ent
SOT-223
TO-92
q JA
62.3
132
°C /W
Thermal Resi stance Juncti on to C ase
SOT-223
TO-92
q JC
15
66
°C /W
Operati ng Juncti on Temperature Range
TJ
0 to 125
°C
Storage Temperature Range
TSTG
-65 to 150
°C
Lead Temperature (Solderi ng) 10 Sec.
TLEAD
300
°C
ESD Rati ng (Human Body Model)
V ESD
2
kV
Note:
(1) Specifications are applicable for a power dissipation of 2.5W and are only achievable over a limited range of
VIN - VOUT.
Electrical Characteristics
Unless otherwise specified: (VIN - VOUT) = 1.45V to 10V and IOUT = 10mA to 250mA. Values in bold apply over the full operating temperature range.
Parameter
Output Voltage(2)
Sy mbol
C onditions(1)
Min
Ty p
Max
U nits
VOUT
VIN = VOUT + 3V, IOUT = 10mA
-3%
VOUT
+3%
V
-4%
Fi xed Voltage Versi on
Reference Voltage(2)
VREF
VIN = VOUT + 3V, IOUT = 10mA
1.213
+4%
1.250
1.200
Adj. Voltage Versi on
0.2
0.035
0.2
0.1
0.3
0.2
0.4
VD
1.3
1.5
Surge C urrent Li mi t
IS
0.5
Qui escent C urrent
IQ
Load Regulati on(2)
D ropout Voltage
REG(LOAD)
IOUT = 10mA
VIN = 3V
V
1.300
0.015
Li ne Regulati on(2)
REG(LINE)
1.288
%
%
V
DVOUT, DVREF = 1%
Thermal Regulati on(3)
ã 2001 Semtech Corp.
VIN = 10V
REG(THERM)
2
A
10
15
mA
0.002
0.01
%/W
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EZ55Z3L
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Unless otherwise specified: (VIN - VOUT) = 1.45V to 10V and IOUT = 10mA to 250mA. Values in bold apply over the full operating temperature range.
Parameter
Adjust Pi n C urrent
Sy mbol
C onditions(1)
Min
Ty p
Max
55
IADJ
U nits
µA
120
Adjust Pi n C urrent C hange
0.2
DIADJ
Temperature Stabi li ty
TS
VIN = 5V, IOUT = 250mA
0.5
Mi ni mum Load C urrent
IOUT
VIN = 10V
5
RMS Output Noi se(4)
VN
Ri pple Rejecti on Rati o(5)
RA
VIN = 5V, IOUT = 250mA
60
5
µA
%
10
mA
0.003
%VOUT
72
dB
Notes:
(1) Specifications are applicable for a power dissipation of 2.5W and are only achievable over a limited range of
VIN - VOUT.
(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.; COUT & CADJ (for ADJ) = 25µF.
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EZ55Z3L
POWER MANAGEMENT
Pin Configurations
Ordering Information
D ev ice(1)
P ackag e
PIN
FU N C TION
EZ55Z3L-SX.TR(2)
SOT-223
1
AD J/GND
EZ55Z3L-ZX.TR(3)
TO-92
2
OUT
3
IN
Notes:
(1) Where X denotes voltage options. Available voltages
are: 3.3V, 5V, 9V, 12V and 24V. Replace X with “ADJ” for
adjustable version (1.25 to 24V).
(2) Only available in tape and reel packaging. A reel
contains 2500 devices.
(3) Available in tape and reel packaging (a reel contains
3000 devices) or ammo pack (suffix TA, an ammo pack
contains 2000 devices).
SOT-223 Tab i s OUT
Block Diagram
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EZ55Z3L
POWER MANAGEMENT
Outline Drawing - SOT-223
Land Pattern - SOT-223
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EZ55Z3L
POWER MANAGEMENT
Outline Drawing - TO-92
Contact Information
Semtech Corporation
Power Management Products Division
652 Mitchell Rd., Newbury Park, CA 91320
Phone: (805)498-2111 FAX (805)498-3804
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