UM3730 - Union Semiconductor

UM3730
150mA, Micropower, Low Dropout Linear Regulator
UM3730DA-xx DFN4 1.0×1.0
UM3730P-xx SOT353
General Description
The UM3730 series are low dropout linear regulators designed for low power portable applications.
Typical output noise is only 220μVRMS and typical dropout voltage is 155mV at the load current of
150mA. Ideal for battery powered applications, the UM3730 draws only 29μA current during no
load operation. The UM3730 includes an auto-discharge feature that is activated when the enable
pin is low.
Other features include 2% output voltage accuracy, excellent transient response, stability with ultra
low ESR ceramic capacitors as small as 1μF, thermal overload protection and output current
limiting.
The UM3730 series are available in low profile DFN4 1.0×1.0 and SOT353 packages.
Applications
Features
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Digital Camera
PDAs and Notebook Computers
Portable Instruments and
Battery-Powered Systems
Cellular Phones
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Input Voltage Range: 2.5V to 5.5V
Guaranteed 150mA Output Current
±2% Voltage Accuracy at 150mA
Low Dropout Voltage:
155mV(Typical) at 150mA
Low Quiescent Current: 29μA(Typical)
Low Noise: 220μVRMS (10Hz to 100kHz)
Available Fixed Output Voltage from 1.0V to
3.3V with 0.1V Step
Output Current Limit
Thermal Overload Protection
Stable with 1μF Output Capacitor
Low Profile DFN4 1.0×1.0 and SOT353
Packages
Typical Application Circuit
UM3730
VIN
VOUT
VIN
VOUT
1uF
Chip Enable
1uF
EN
GND
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UM3730
Pin Configurations
Top View
VIN
4
EN
3
XX
M
(Top View)
EP
2
GND
M: Month Code
UM3730DA-xx
DFN4 1.0×1.0
4
5
IN
1
GND
2
EN
3
5
OUT
4
NC
XXX
2
1
M
1
VOUT
3
M: Month Code
UM3730P-xx
SOT353
Pin Description
Pin
Number
Pin Name
DFN4 1.0×1.0
Pin Name
SOT353
1
VOUT
-
1
-
IN
2
GND
GND
3
EN
EN
4
VIN
-
Supply Input
4
-
NC
No connect.
5
-
OUT
EP
HS Pad
-
Pin Function
Output Voltage
Supply Input
Ground
Enable Input: Active High. High=ON,
Low=Off
Output Voltage
Exposed Heat Sink Pad
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UM3730
Naming Information
UM3730
Output Voltage
10: 1.0V
11: 1.1V
12: 1.2V
……
33: 3.3V
Package Type
DA: DFN4 1.0×1.0
P: SOT353
Available Voltage Version
Part Number
UM3730DA-10
UM3730DA-11
UM3730DA-12
UM3730DA-13
UM3730DA-14
UM3730DA-15
UM3730DA-16
UM3730DA-17
UM3730DA-18
UM3730DA-19
UM3730DA-20
UM3730DA-21
UM3730DA-22
UM3730DA-23
UM3730DA-24
UM3730DA-25
UM3730DA-26
UM3730DA-27
UM3730DA-28
UM3730DA-29
UM3730DA-30
UM3730DA-31
UM3730DA-32
UM3730DA-33
Output Voltage
1.0V
1.1V
1.2V
1.3V
1.4V
1.5V
1.6V
1.7V
1.8V
1.9V
2.0V
2.1V
2.2V
2.3V
2.4V
2.5V
2.6V
2.7V
2.8V
2.9V
3.0V
3.1V
3.2V
3.3V
Packaging Type
DFN4 1.0×1.0
Marking Code
JA
JB
J2
J3
J4
J5
J6
J7
J8
J9
JC
KB
K2
K3
K4
K5
K6
K7
K8
K9
KC
NB
N2
N3
Shipping Qty
3000pcs/7Inch
Tape & Reel
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UM3730
Available Voltage Version (Continued)
Part Number
UM3730P-10
UM3730P-11
UM3730P-12
UM3730P-13
UM3730P-14
UM3730P-15
UM3730P-16
UM3730P-17
UM3730P-18
UM3730P-19
UM3730P-20
UM3730P-21
UM3730P-22
UM3730P-23
UM3730P-24
UM3730P-25
UM3730P-26
UM3730P-27
UM3730P-28
UM3730P-29
UM3730P-30
UM3730P-31
UM3730P-32
UM3730P-33
Output Voltage
1.0V
1.1V
1.2V
1.3V
1.4V
1.5V
1.6V
1.7V
1.8V
1.9V
2.0V
2.1V
2.2V
2.3V
2.4V
2.5V
2.6V
2.7V
2.8V
2.9V
3.0V
3.1V
3.2V
3.3V
Packaging Type
SOT353
Marking Code
UJA
UJB
UJ2
UJ3
UJ4
UJ5
UJ6
UJ7
UJ8
UJ9
UJC
UKB
UK2
UK3
UK4
UK5
UK6
UK7
UK8
UK9
UKC
UNB
UN2
UN3
Shipping Qty
3000pcs/7Inch
Tape & Reel
Absolute Maximum Ratings (Note 1)
Symbol
VIN
VOUT
TJ
TSTG
TL
θJA
(Notes 4)
Parameter
Value
Unit
Supply Voltage on VIN Pin
-0.3 to +7.5
V
Voltage on VOUT Pin
-0.3 to +7.5
V
Operating Junction Temperature (Notes 2, 3)
-40 to +125
°C
Storage Temperature Range
-55 to +150
°C
+260
°C
Lead Temperature for Soldering 10 seconds
Package Thermal Resistance
DFN4 1.0×1.0
250
°C/W
SOT353
256
Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
Note 2: The UM3730 is tested and specified under pulse load conditions such that TJ≈TA. Specifications
over the –40°C to 125°C operating junction temperature range are assured by design,
characterization and correlation with statistical process controls.
Note 3: This IC includes over temperature protection that is intended to protect the device during
momentary overload conditions.
Note 4: The maximum allowable power dissipation of any TA(ambient temperature) is PDMAX = (TJMAX TA)/ θJA. Exceeding the maximum allowable power dissipation will result in excessive die
temperature and the regulator will go into thermal shutdown.
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UM3730
Electrical Characteristics
VIN=VEN=VOUT+1V, CIN=COUT=1μF, TA=25°C.
Symbol
VIN
VOUT
IQ
ISHDN
IEN
IOUT
ΔVDO
ILIMT
t
VIL
VIH
TSHDN
ΔTSHDN
Parameter
Input Voltage Range
Output Voltage
Range
Operating Quiescent
Current
Shutdown Leakage
Current
Enable Input
Current
Output Current
Output Voltage
Accuracy
Dropout Voltage
Output Current
Limit
Startup Time
Response
Enable Input Low
Voltage
Enable Input High
Voltage
Output Voltage TC
Thermal-Shutdown
Temperature
Thermal-Shutdown
Hysteresis
LNR
Line Regulation
LDR
Load Regulation
Output Voltage
Noise
PSRR
Power Supply
Ripple Rejection
Auto-Discharge
Resistance
Test Conditions
Min
2.5
Typ
1.0
IOUT=0mA
29
VEN=VIN or GND
Max
5.5
Unit
V
3.3
V
39
μA
1
μA
1
μA
150
IOUT=150mA
-2.0
IOUT=50mA, VOUT≥2.8V
IOUT=150mA, VOUT≥2.8V
IOUT=50mA, VOUT <2.8V
IOUT=150mA, VOUT <2.8V
VOUT =0V
mA
200
IOUT=150mA, COUT=1μF
+2.0
%
55
155
60
180
110
310
135
380
mV
mV
mV
mV
325
500
mA
VIN=2.5V to5.5V
VIN=2.5V to5.5V
VOUT+1V≤VIN≤5.5V
(VIN≥2.5V)
IOUT=10mA
VIN=VOUT+1V (VIN≥2.5V)
1mA≤IOUT≤150mA
VOUT=1.8V,
10Hz to 100kHz
CIN=1μF, IOUT=100mA
VIN=VOUT+1V
(VIN≥2.5V)
IOUT=100mA
f=1kHz
μs
30
0.4
1.2
V
V
100
ppm/°C
160
°C
20
°C
0.1
0.3
%/V
0.8
1.5
%
220
μVRMS
45
dB
f=10kHz
VIN=3.6V,
VEN=0V
30
10
Ω
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UM3730
Typical Performance Characteristics
Quiescent Current vs Input Voltage
IOUT=0mA
Quiescent Current vs Temperature
VIN=2.8V, IOUT=0mA
Ground Current vs Output Current
VIN=2.8V
Output Voltage vs Input Voltage
IOUT=150mA
Output Voltage vs Output Current
VIN=2.8V
Output Voltage vs Temperature
VIN=2.8V, IOUT=1mA
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UM3730
Typical Performance Characteristics (Continued)
Dropout Voltage vs Output Current
VOUT=1.8V
Enable Logic Threshold vs Supply Voltage
VIH
VIL
PSRR vs Frequency
Noise
VOUT=1.8V, VIN=2.8V, IOUT=100mA,
CIN=COUT=1μF
220μVrms
IOUT=50mA
IOUT=150mA
Noise (500μV/div)
Load Transient Response
IOUT=10 to 150mA (50mA/div)
VOUT (50mV/div)
VOUT=1.8V,
VIN=2.8V, 50μs/div
Time, 50ms/div
f=10Hz to 100kHz
Line Transient Response
VIN =2.8 to 3.8V (1V/div)
VOUT (100mV/div)
VOUT=1.8V,
IOUT=150mA, 20μs/div
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UM3730
Typical Performance Characteristics (Continued)
Enable Turn-On
VEN (1V/div)
Auto Discharge (No Load)
VEN (2V/div)
VOUT (1V/div)
VOUT=1.8V,
VIN =2.8V, RL=68Ω
20μs/div
VOUT (1V/div)
VOUT=1.8V, VIN=3.6V
20μs/div
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UM3730
Package Information
UM3730DA-xx DFN4 1.0×1.0
Outline Drawing
D
b
Symbol
A
A1
A3
b
D
E
D2
E2
e
L
L1
L2
Z
E
D
2
L1
Pin #1 ID
L
E2
L2
e
Z
A3
A1
A
Bottom View
Side View
DIMENSIONS
MILLIMETERS
Min
Typ
Max
0.39
0.40
0
0.02
0.05
0.13
0.20
0.25
0.30
0.95
1.00
1.05
0.95
1.00
1.05
0.38
0.48
0.58
0.38
0.48
0.58
0.65BSC
0.20
0.25
0.30
0.27
0.32
0.37
0.02
0.07
0.12
0.05
-
Land Pattern
0.
0.25
0.
48
0.22
0.47
1.30
0.40
48
0.65
NOTES:
1. Compound dimension: 1.00×1.00;
2. Unit: mm;
3. General tolerance ±0.05mm unless otherwise
specified;
4. The layout is just for reference.
Tape and Reel Orientation
XX
M
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UM3730
UM3730P-xx SOT353
Outline Drawing
Symbol
D
θ
L
e1
4
2
3
L1
1
E
E1
5
b
20
c
e
Top View
A
A1
A2
End View
Side View
A
A1
A2
b
c
D
E
E1
e
e1
L
L1
θ
DIMENSIONS
MILLIMETERS
Min
Max
0.900
1.100
0.000
0.100
0.877
1.000
0.150
0.350
0.080
0.220
1.800
2.200
1.150
1.350
2.000
2.450
0.650REF
1.200
1.400
0.488REF
0.260
0.460
0°
8°
INCHES
Min
Max
0.035
0.043
0.000
0.004
0.035
0.039
0.006
0.014
0.003
0.009
0.071
0.087
0.045
0.053
0.079
0.096
0.026REF
0.047
0.055
0.020REF
0.010
0.018
0°
8°
Land Pattern
1.94
1.30
0.80
NOTES:
1. Compound dimension: 2.00×1.25;
2. Unit: mm;
3. General tolerance ±0.05mm unless otherwise
specified;
4. The layout is just for reference.
0.35
XXX
M
Tape and Reel Orientation
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UM3730
GREEN COMPLIANCE
Union Semiconductor is committed to environmental excellence in all aspects of its
operations including meeting or exceeding regulatory requirements with respect to the use
of hazardous substances. Numerous successful programs have been implemented to reduce
the use of hazardous substances and/or emissions.
All Union components are compliant with the RoHS directive, which helps to support
customers in their compliance with environmental directives. For more green compliance
information, please visit:
http://www.union-ic.com/index.aspx?cat_code=RoHSDeclaration
IMPORTANT NOTICE
The information in this document has been carefully reviewed and is believed to be accurate.
Nonetheless, this document is subject to change without notice. Union assumes no
responsibility for any inaccuracies that may be contained in this document, and makes no
commitment to update or to keep current the contained information, or to notify a person or
organization of any update. Union reserves the right to make changes, at any time, in order
to improve reliability, function or design and to attempt to supply the best product possible.
Union Semiconductor, Inc
Add: Unit 606, No.570 Shengxia Road, Shanghai 201210
Tel: 021-51093966
Fax: 021-51026018
Website: www.union-ic.com
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