SULR1190
Technical Data
Data Sheet N1577, Rev. -
Ultra LDO 1A Linear Regulator With
Description:
A low noise, high PSRR and ultra low dropout linear regulator SULR1190 is optimized for low ESR
ceramic capacitors operation with 1A continuous current.
The SULR1190 offers high precision output voltage of ±2% tolerance. Output voltage can also be
adjusted for those other than the preset values.
A noise bypass pin is available for further reduction of output noise. The bypass pin could be floating
if it’s unnecessary. At 1A load current and 2.8V output voltage, a 440mV dropout is performed. The
quality of low quiescent current and low dropout voltage makes this device ideal for battery power
applications. The high ripple rejection and low noise of the SULR1190 provide enhanced performances
for critical applications such as cellular phones, and PDAs.
In addition, a logic-level shutdown input is included, which reduce supply current to less than 0.1μA
(typ.) in shutdown mode with fast turn-on time less than 100μs. The SULR1190’s current limit and
thermal protection provide protection against any overload condition that would create excessive
junction temperatures.
Features:
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Guaranteed 1A Output Current.
Fast Response in Line/Load Transient
Wide Operating Voltage Ranges: 2.3V to 6.0V.
0.1μA Shutdown Standby Current
Low Quiescent Current: < 60μA.
Fixed: 1.2V, 1.5V, 1.8V, 2.0V, 2.5V, 2.7V, 3.0V, 3.3V, 3.5V, 3.7V, 3.8V Output Voltage.
Output Voltage are available from 0.8~5.0V in Adjustable Version.
Low Dropout：440mV at 1A and 2.8V output voltage.
High PSRR：70dB at 1KHz.
Active Low or High Shutdown Control. Current Limit and Thermal Protection.
Available in ±2% Output Tolerance.
Available in SOT-223 & TO-220 (3 pin) & SOP- 8 Exposed Pad (Heat Sink) and TO-252 &TO-263
(3 pin) Package.
Applications:
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LCD TV, LCD Monitor, DPF
Networking
STB
DVD, HDD Driver
Portable AV Equipment
PC Peripherals
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SULR1190
Technical Data
Data Sheet N1577, Rev. -
Ultra LDO 1A Linear Regulator With
Typical application circuit:
Fixed Linear Regulator
Adjustable Linear Regulator in SOP-8 Exposed Pad Package
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SULR1190
Ultra LDO 1A Linear Regulator With
Technical Data
Data Sheet N1577, Rev. -
Ordering Information:
PIN CONFIGURATION
SULR1190-XXXXX
TO-252
TOP VIEW
PACKING TYPE
TB: TUBE
TR: TAPING & REEL
PACKAGING TYPE
T: TO-252
R: TO-263
V: TO-220
G: SOT-223
M: SOP-8
OUTPUT VOLTAGE
08: 0.8V
10: 1.0V
12: 1.2V
15: 1.5V
18: 1.8V
20: 2.0V
25: 2.5V
27: 2.7V
30: 3.0V
33: 3.3V
35: 3.5V
37: 3.7V
38: 3.8V
(Of a unit of 0.1V within
0.8~4.5V, additional voltage
versions are available on
demand)
1: ADJ (GND)
2: VOUT (TAB)
3: VIN
TO-263
TOP VIEW
1: ADJ (GND)
2: VOUT (TAB)
3: VIN
TO-220
FRONT VIEW
1: ADJ (GND)
2: VOUT (TAB)
3: VIN
SOT-223
FRONT VIEW
1: ADJ (GND)
2: VOUT (TAB)
3: VIN
SOP-8 Exposed Pad (Heat Sink)
TOP VIEW
———
Example: SULR1190-18TTR
1.8V version in TO-252 Lead Free
Package &Taping & Reel Packing Type
1: E N / EN
2: VIN
3: VOUT
4: ADJ
5: GND (TAB)
6: BP
7: GND (TAB)
8: GND (TAB)
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SULR1190
Ultra LDO 1A Linear Regulator With
Technical Data
Data Sheet N1577, Rev. -
Ordering Information (Continued)
SULR1190H-XXXXX
PACKING TYPE
TB: TUBE
TR: TAPING & REEL
PACKAGING TYPE
T: TO-252
R: TO-263
V: TO-220
G: SOT-223
M: SOP-8
PIN CONFIGURATION
SOP-8 Exposed Pad (Heat Sink)
TOP VIEW
———
1: E N / EN
2: VIN
3: VOUT
4: ADJ
5: GND (TAB)
6: BP
7: GND (TAB)
8: GND (TAB)
OUTPUT VOLTAGE
08: 0.8V
10: 1.0V
12: 1.2V
15: 1.5V
18: 1.8V
20: 2.0V
25: 2.5V
27: 2.7V
30: 3.0V
33: 3.3V
35: 3.5V
37: 3.7V
38: 3.8V
(Of a unit of 0.1V within
0.8~4.5V, additional voltage
versions are available on
demand)
ENABLE TYPE
L: Chip Enable Low
H: Chip Enable High
Example: SULR1190H-18MTR
Chip Enable High, 1.8V Version, in SOP-8 Green Package &
Tape & Reel Packing Type
Output Voltage Could Be Adjusted from 0.8V to 5.0V by External Resistors.
Marking Diagram:
Part No.
Marking
SULR1190-xxGTR
HBxxG
xx represents output voltage. (08=0.8V, 09=0.9V, ….…, 44=4.4V, 45=4.5V)
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SULR1190
Technical Data
Data Sheet N1577, Rev. -
Ultra LDO 1A Linear Regulator With
Absolute Maximum Ratings:
Input Voltage ………..................………………………………………………………………………….7V
EN Pin Voltage ……………………………...............…………………………………………………….7V
Noise Bypass Terminal Voltage ………………………………………………………………………..7V
Operating Temperature Range ...………………………………………………………… –40°C to 85°C
Maximum Junction Temperature …………………………………………………………………..150°C
Storage Temperature Range ……………………………………………………………..–65°C ~ 150°C
Lead Temperature (Soldering) 10 sec. ……………………………………………………………260°C
Thermal Resistance Junction to Case TO-252 ………………………………………………..…8°C/W
TO-263, TO-220…………………….…………………..3°C/W
SOT-223………………………………………………..15°C/W
SOP-8 (Exposed Pad*)......................................... 15ºC /W
Thermal Resistance Junction to Ambient SOT-223 ……….………………………………..130°C/W
(Assume no ambient airflow, no heatsink) TO-263 …………………………………………..60°C/W
TO-252 …………………………………..…….100°C/W
TO-220…………………………………………..50°C/W
(Assume no ambient airflow)
SOP-8 (Exposed Pad*)………………….…..60ºC /W
Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
* The package is placed on a two layers PCB with 2 ounces copper and 2 square inch, connected by 8 vias
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SULR1190
Technical Data
Data Sheet N1577, Rev. -
Ultra LDO 1A Linear Regulator With
Electrical Characteristics
(CIN = Cout = 2.2μF, CBP = 22nF, VIN = VOUT + 1V, TJ=25℃, unless otherwise specified) (Note 1)
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SULR1190
Technical Data
Data Sheet N1577, Rev. -
Ultra LDO 1A Linear Regulator With
Electrical Characteristics (Continued)
Note 1: Specifications are production tested at TA=25°C. Specifications over the -40°C to 85°C operating
temperature range are assured by design, characterization and correlation with Statistical Quality
Controls (SQC).
Note 2: Connecting a 22nF bypass capacitor to BP pin can improve SULR1190 PSRR in High frequency.
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SULR1190
Technical Data
Data Sheet N1577, Rev. -
Ultra LDO 1A Linear Regulator With
Typical Performance Characteristics
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SULR1190
Technical Data
Data Sheet N1577, Rev. -
Ultra LDO 1A Linear Regulator With
Typical Performance Characteristics (Continued)
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SULR1190
Technical Data
Data Sheet N1577, Rev. -
Ultra LDO 1A Linear Regulator With
Typical Performance Characteristics (Continued)
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SULR1190
Technical Data
Data Sheet N1577, Rev. -
Ultra LDO 1A Linear Regulator With
Block Diagram
Pin Descriptions
VIN
GND
VOUT
– Power supply input pin. Bypass with a 2.2μF capacitor to GND
– Ground.
– Regulator Output pin. Sources up to 1A.
———
EN (5 Pin and 8 Pin) – Chip Enable (Active Low). This pin isn’t allowed to float.
EN (5 Pin and 8 Pin) – Chip Enable (Active High). This pin isn’t allowed to float.
BP (5 Pin and 8 Pin) – Bypass pin. It can connect to external 22nF capacitor to GND to reduce output
noise. The bypass pin could be floating if it’s unnecessary (Keep floating
cannot pull low and pull high).
ADJ (5 Pin and 8 Pin) –The output voltage can either be set by the internal feedback resistors when
this pin is grounded, or be set by the external feedback resistors when using
a resistive divider.
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SULR1190
Ultra LDO 1A Linear Regulator With
Technical Data
Data Sheet N1577, Rev. -
Application Information
The SULR1190 is a high performance linear regulator that provides low-dropout voltage and low quiescentcurrent. The device is available in an adjustable version and fixed output voltages ranging from 1.2V to 3.8V,
and the device can supply loads up to 1A.
SHUTDOWN __
By connecting EN(EN) pin to VIN(ground), the SULR1190 can be shut down to reduce the supply current to
0.1μA(typ.). At this operation mode, the output voltage of SULR1190 is equal to 0V.
CURRENT LIMIT
The SULR1190 includes a current limiter, which monitors and controls the maximum output current. If the
output is overloaded or shorted to ground, this can protect the device from being damaged.
THERMAL PROTECTION
The SULR1190 includes a thermal-limiting circuit, which is designed to protect the device against overload
condition. When the junction temperature exceeds TJ=150ºC, the thermal-limiting circuit turns off the pass
transistor and allows the IC to cool. For continuous load condition, maximum rating of junction temperature
must not be exceeded.
INPUT-OUTPUT CAPACITORS
Linear regulators require input and output capacitors to maintain stability. Input capacitor at 2.2μF with a 2.2μF
ceramic output capacitor is recommended. When choosing the input and output ceramic capacitors, X5R and
X7R types are recommended because they retain their capacitance over wider ranges of voltage and
temperature than other types.
NOISE BYPASS CAPACITOR
A 22nF bypass capacitor at BP pin can reduce output voltage noise. The bypass pin can be floating if it’s
unnecessary.
OUTPUT VOLTAGE PROGRAMMING
The output voltage of SULR1190 linear regulator can be set by its internal feedback resistors when the ADJ
pin is grounded. In addition, the output voltage of SULR1190 linear regulator can be set by the external
feedback resistors when connecting a resistive divider R1 and R2. While connecting a resistive divider, VOUT
can be calculated as:
R1
VOUT = 0.8×{1+
}
R2
The resistive divider should sit as close to ADJ pin as possible.
POWER DISSIPATION
The maximum power dissipation of SULR1190 depends on the thermal resistance of its case and circuit
board, the temperature difference between the die junction and ambient air, and the rate of airflow. The rate
of temperature rise is greatly affected by the mounting pad configuration on the PCB, the board material, and
the ambient temperature. When the IC mounting with good thermal conductivity is used, the junction
temperature will be low even when large power dissipation applies.
The power dissipation across the device is P = I
OUT
(V -V
IN
OUT
).
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SULR1190
Technical Data
Data Sheet N1577, Rev. -
Ultra LDO 1A Linear Regulator With
The maximum power dissipation is:
(TJ-max - TA)
PMAX =
RΘJA
is the maximum allowable junction temperature (150°C), and T is the ambient temperature
Where T
J-max
A
suitable in application.
As a general rule, the lower temperature is, the better reliability of the device is. So the PCB mounting pad
should provide maximum thermal conductivity to maintain low device temperature.
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SULR1190
Technical Data
Data Sheet N1577, Rev. -
Ultra LDO 1A Linear Regulator With
Physical Dimensions
TO-220 (unit: mm)
Note:
1. Refer to JEDEC TO-220AB.
2. Dimension "E" does not include mold flash, protrusions or gate burrs. Mold flash, protrusion or gate burrs shall
not exceed 6 mil per side.
3. Dimension "D1" does not include inter-lead flash or protrusions.
4. Controlling dimension is millimeter, converted inch dimensions are not necessarily exact.
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SULR1190
Technical Data
Data Sheet N1577, Rev. -
Ultra LDO 1A Linear Regulator With
TO-252 (unit: mm)
Note:
1. Refer to JEDEC TO-252AA and AB.
2. Dimension “E” do not include mold flash, protrusions or gate burrs. Mold flash, protrusion or gate burrs shall not
exceed 6 mil per side.
3. Dimension "D" does not include inter-lead flash or protrusions.
4. Controlling dimension is millimeter, converted inch dimensions are not necessarily exact.
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SULR1190
Technical Data
Data Sheet N1577, Rev. -
Ultra LDO 1A Linear Regulator With
SOT-223(unit: mm)
Note: 1. Refer to JEDEC TO-261AA.
2. Dimension "D" does not include mold flash, protrusions or gate burrs. Mold flash, protrusion or gate burrs
shall not exceed 6 mil per side .
3. Dimension "E1" does not include inter-lead flash or protrusions.
4. Controlling dimension is millimeter, converted inch dimensions are not necessarily exact.
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SULR1190
Technical Data
Data Sheet N1577, Rev. -
Ultra LDO 1A Linear Regulator With
TO-263 (unit: mm)
Note:
1. Refer to JEDEC TO-263AB.
2. Dimension "E" does not include mold flash, protrusions or gate burrs. Mold flash, protrusion or gate burrs shall
not exceed 6 mil per side.
3. Dimension "D" does not include inter-lead flash or protrusions.
4. Controlling dimension is millimeter, converted inch dimensions are not necessarily exact.
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SULR1190
Technical Data
Data Sheet N1577, Rev. -
Ultra LDO 1A Linear Regulator With
SOP-8 (unit: mm)
Note: 1. Refer to JEDEC MS-012E.
2. Dimension "D" does not include mold flash, protrusions or gate burrs. Mold flash, protrusion or gate burrs
shall not exceed 6 mil per side .
3. Dimension "E" does not include inter-lead flash or protrusions.
4. Controlling dimension is millimeter, converted inch dimensions are not necessarily exact.
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SULR1190
Technical Data
Data Sheet N1577, Rev. -
Ultra LDO 1A Linear Regulator With
DISCLAIMER:
1- The information given herein, including the specifications and dimensions, is subject to change without prior notice to improve product
characteristics. Before ordering, purchasers are advised to contact the SMC - Sangdest Microelectronics (Nanjing) Co., Ltd sales
department for the latest version of the datasheet(s).
2- In cases where extremely high reliability is required (such as use in nuclear power control, aerospace and aviation, traffic equipment,
medical equipment , and safety equipment) , safety should be ensured by using semiconductor devices that feature assured safety or by
means of users’ fail-safe precautions or other arrangement .
3- In no event shall SMC - Sangdest Microelectronics (Nanjing) Co., Ltd be liable for any damages that may result from an accident or
any other cause during operation of the user’s units according to the datasheet(s). SMC - Sangdest Microelectronics (Nanjing) Co., Ltd
assumes no responsibility for any intellectual property claims or any other problems that may result from applications of information,
products or circuits described in the datasheets.
4- In no event shall SMC - Sangdest Microelectronics (Nanjing) Co., Ltd be liable for any failure in a semiconductor device or any
secondary damage resulting from use at a value exceeding the absolute maximum rating.
5- No license is granted by the datasheet(s) under any patents or other rights of any third party or SMC - Sangdest Microelectronics
(Nanjing) Co., Ltd.
6- The datasheet(s) may not be reproduced or duplicated, in any form, in whole or part, without the expressed written permission of SMC
- Sangdest Microelectronics (Nanjing) Co., Ltd.
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hinder maintenance of international peace and safety nor are they to be applied to that purpose by their direct purchasers or any third
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