HTC LM27151R-5.0 1.5a very l.d.o voltage regulator Datasheet

LM27150/27151/27152
1.5A Very L.D.O Voltage Regulator
FEATURES
TO-220 3L / 5L PKG
High Current Capability 1.5A
Low Dropout Voltage 350mV
Low Ground Current
Accurate 1% Guaranteed Initial Tolerance
Extremely Fast Transient Response
Reverse-Battery and "Load Dump" Protection
Zero-Current Shutdown Mode(5-Pin Version)
Error Flag Signals Output out-of-Regulation
(5-Pin Version)
 Also Characterized For Smaller Loads With Industry
-Leading Performance specifications
 Fixed Voltage and Adjustable Versions
 Moisture Sensitivity Level 3








TO-263 3L / 5L PKG
TO-252 3L / 5L PKG
ORDERING INFORMATION
Device
LM27150T-X.X
LM27151T-X.X
LM27152T
LM27150R-X.X
LM27151R-X.X
LM27152R
LM27150RS-X.X
LM27151RS-X.X
LM27152RS
APPLICATION





Battery Powered Equipment
High-Efficiency " Green" Computer System
Automotive Electronics
High-Efficiency Linear Power Supplies
High-Efficiency Post-Regulator For Switching Supply
Package
TO-220 3L / 5L
TO-263 3L / 5L
TO-252 3L / 5L
X.X = Output Voltage = 1.5, 1.8, 2.5, 3.0, 3.3, 5.0, 12
DESCRIPSION
The LM27150, LM27151 and LM27152 are high current, high accuracy, and low-dropout voltage regulators.
Using process with a PNP pass element, these regulators feature 350mV (full load) dropout voltages and very
low ground current. These devices also find applications in lower current, low dropout-critical systems, where
their tiny dropout voltage and ground current values are important attributes.
The LM27150, LM27151 and LM27152 are fully protected against over current faults, reversed input polarity,
reversed lead insertion, over temperature operation, and positive and negative transient voltage spikes.
LM27151 features logic level enable control and an error flag which signals whenever the output falls out of
regulation. On the LM27151 and LM27152, the ENABLE pin may be tied to Vin if it is not required for ON/OFF
control.
Absolute Maximum Ratings
CHARACTERISTIC
SYMBOL
MIN.
MAX.
UNIT
VIN
- 20
+ 30
V
Lead Temperature(Soldering, 5 sec)
TSOL
-
260
℃
Storage Temperature Range
TSTG
- 65
+ 150
℃
Input Supply Voltage
Dec. 2011 – Rev.1.3.1
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HTC
LM27150/27151/27152
1.5A Very L.D.O Voltage Regulator
Recommended Operating Ratings
CHARACTERISTIC
SYMBOL
MIN.
MAX.
UNIT
Operating Input Voltage
VIN
-
+ 26
V
Junction Temperature
TJ
- 40
+ 125
℃
Ordering Information
VOUT
1.5 V
1.8 V
2.5 V
3.0 V
3.3 V
Package
Order No.
Description
Supplied As
Status
TO-220 3L
LM27150T-1.5
1.5A, Fixed
Tube
Contact us
TO-220 5L
LM27151T-1.5
1.5A, Fixed, Enable
Tube
Contact us
TO-263 3L
LM27150R-1.5
1.5A, Fixed
Reel
Contact us
TO-263 5L
LM27151R-1.5
1.5A, Fixed, Enable
Reel
Contact us
TO-252 3L
LM27150RS-1.5
1.5A, Fixed
Reel
Contact us
TO-252 5L
LM27151RS-1.5
1.5A, Fixed, Enable
Reel
Contact us
TO-220 3L
LM27150T-1.8
1.5A, Fixed
Tube
Contact us
TO-220 5L
LM27151T-1.8
1.5A, Fixed, Enable
Tube
Contact us
TO-263 3L
LM27150R-1.8
1.5A, Fixed
Reel
Contact us
TO-263 5L
LM27151R-1.8
1.5A, Fixed, Enable
Reel
Contact us
TO-252 3L
LM27150RS-1.8
1.5A, Fixed
Reel
Contact us
TO-252 5L
LM27151RS-1.8
1.5A, Fixed, Enable
Reel
Contact us
TO-220 3L
LM27150T-2.5
1.5A, Fixed
Tube
Contact us
TO-220 5L
LM27151T-2.5
1.5A, Fixed, Enable
Tube
Contact us
TO-263 3L
LM27150R-2.5
1.5A, Fixed
Reel
Contact us
TO-263 5L
LM27151R-2.5
1.5A, Fixed, Enable
Reel
Contact us
TO-252 3L
LM27150RS-2.5
1.5A, Fixed
Reel
Contact us
TO-252 5L
LM27151RS-2.5
1.5A, Fixed, Enable
Reel
Contact us
TO-220 3L
LM27150T-3.0
1.5A, Fixed
Tube
Contact us
TO-220 5L
LM27151T-3.0
1.5A, Fixed, Enable
Tube
Contact us
TO-263 3L
LM27150R-3.0
1.5A, Fixed
Reel
Contact us
TO-263 5L
LM27151R-3.0
1.5A, Fixed, Enable
Reel
Contact us
TO-252 3L
LM27150RS-3.0
1.5A, Fixed
Reel
Contact us
TO-252 5L
LM27151RS-3.0
1.5A, Fixed, Enable
Reel
Contact us
TO-220 3L
LM27150T-3.3
1.5A, Fixed
Tube
Contact us
TO-220 5L
LM27151T-3.3
1.5A, Fixed, Enable
Tube
Contact us
TO-263 3L
LM27150R-3.3
1.5A, Fixed
Reel
Contact us
TO-263 5L
LM27151R-3.3
1.5A, Fixed, Enable
Reel
Contact us
TO-252 3L
LM27150RS-3.3
1.5A, Fixed
Reel
Contact us
TO-252 5L
LM27151RS-3.3
1.5A, Fixed, Enable
Reel
Contact us
Dec. 2011 – Rev.1.3.1
-2
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HTC
LM27150/27151/27152
1.5A Very L.D.O Voltage Regulator
Ordering Information
VOUT
5.0 V
12 V
ADJ
Package
Order No.
Description
Supplied As
Status
TO-220 3L
LM27150T-5.0
1.5A, Fixed
Tube
Contact us
TO-220 5L
LM27151T-5.0
1.5A, Fixed, Enable
Tube
Contact us
TO-263 3L
LM27150R-5.0
1.5A, Fixed
Reel
Contact us
TO-263 5L
LM27151R-5.0
1.5A, Fixed, Enable
Reel
Contact us
TO-252 3L
LM27150RS-5.0
1.5A, Fixed
Reel
Contact us
TO-252 5L
LM27151RS-5.0
1.5A, Fixed, Enable
Reel
Contact us
TO-220 3L
LM27150T-12
1.5A, Fixed
Tube
Contact us
TO-220 5L
LM27151T-12
1.5A, Fixed, Enable
Tube
Contact us
TO-263 3L
LM27150R-12
1.5A, Fixed
Reel
Contact us
TO-263 5L
LM27151R-12
1.5A, Fixed, Enable
Reel
Contact us
TO-252 3L
LM27150RS-12
1.5A, Fixed
Reel
Contact us
TO-252 5L
LM27151RS-12
1.5A, Fixed, Enable
Reel
Contact us
TO-220 5L
LM27152T
1.5A, Adjustable, Enable
Tube
Contact us
TO-263 5L
LM27152R
1.5A, Adjustable, Enable
Reel
Contact us
TO-252 5L
LM27152RS
1.5A, Adjustable, Enable
Reel
Contact us
LM 2715X
Output Voltage : 1.5V / 1.8V / 2.5V / 3.0V / 3.3V / 5.0V /
12V / Blank(ADJ Only)
Package Type
T
: TO-220
R : TO-263
RS : TO-252
27150 : 3L Fixed Output
27151 : 5L Fixed Output
27152 : 5L Adjustable Output
Root Name
Product Code
Dec. 2011 – Rev.1.3.1
-3
-
HTC
LM27150/27151/27152
1.5A Very L.D.O Voltage Regulator
PIN CONFIGURATION
5
4
3
2
1
3 OUTPUT
2 GND
1 INPUT
TO-263 3L
FLG / ADJ
OUTPUT
GND
INPUT
EN
3 OUTPUT
2 GND
1 INPUT
TO-263 5L
TO-252 3L
5
4
3
2
1
3 OUTPUT
2 GND
1 INPUT
TO-220 3L
5
4
3
2
1
FLG/ADJ
OUTPUT
GND
INPUT
EN
TO-252 5L
FLG / ADJ
OUTPUT
GND
INPUT
EN
TO-220 5L
PIN DESCRIPTION
TO-220 / TO-263 / TO-252 3L (for LM27150)
TO-220 / TO-263 / TO-252 5L (for LM27151/2)
Pin No.
Name
Function
Name
Function
1
VIN
Input Supply
EN
Chip Enable
2
GND
Ground
VIN
Input Supply
3
VOUT
Output Voltage
GND
Ground
4
-
-
VOUT
Output Voltage
5
-
-
FLG / ADJ
Error Flag Output
or Output Adjust
Dec. 2011 – Rev.1.3.1
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HTC
LM27150/27151/27152
1.5A Very L.D.O Voltage Regulator
TYPICAL APPLICATION
- Typical Fixed Output Application
- Typical Adjustable Output Application
LM27152
VIN
IN
VOUT
OUT
R1
CIN
+
EN
GND
+
ADJ
COUT
R2
VOUT = VREF x [1 + (R1/R2)] *
* For best results, the total series resistance should be small enough to pass the minimum regulator load current.
Dec. 2011 – Rev.1.3.1
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HTC
LM27150/27151/27152
1.5A Very L.D.O Voltage Regulator
ELECTRICAL CHARACTERISTICS
IOUT =100mA, TJ=25℃, unless otherwise specified. Bold values are guaranteed across the operating temperature range.
Adjustable versions are programmed to 5.0V.
Symbol
VOUT
Parameter
Min
Typ
Max
IO = 10mA
-1
1
10mA≤IO≤ IFL, (VOUT+1V)≤VIN≤26V
-2
2
Output Voltage
ΔVLINE
Line Regulation
ΔVLOAD
Load Regulation
ΔVo/ΔT
Condition
Units
%
IO = 10mA, (VOUT+1V)≤VIN≤26V
0.06
0.5
%
0.2
1
%
20
100
ppm/℃
IO =100mA
100
200
IO =750mA
250
VIN=VOUT+5V,
10mA≤IOUT≤IFULLOAD
(Note 1)
(Note 2)
Output Voltage Temp.
Output Voltage
Coefficient
Temp. Coefficient
,
ΔVOUT = -1%, (Note 1.3)
VDO
Dropout Voltage
IO =1.5A
350
600
IO =750mA, VIN =VOUT+1V
8
20
IO =1.5A
22
(Note 1.4)
IGND
IGNDDO
ILIMIT
Ground Current
Ground Pin Current at
VIN =0.5V less than specified VOUT,
Dropout
IOUT =10mA
(Note 5)
2
Current Limit
LM27150, VOUT = 0V (Note 1)
2.1
CL =10μF
400
CL =33μF
260
Output Noise Voltage
en
(10Hz to 100kHz)
IL = 100mA
mV
mA
mA
3.5
A
μVRMS
Flag Output (Error Comparator) LM27151
IFLG (leak)
Output Leakage Current
VFLG (do)
Output Low Voltage
VFLG
VOH =26V
0.01
Device set for 5V. VIN =4.5V
IOL =250μA
Upper Threshold Voltage
Device set for 5V (Note 5)
Lower Threshold Voltage
Device set for 5V (Note 5)
Hysteresis
Device set for 5V (Note 5)
Dec. 2011 – Rev.1.3.1
220
(Note 5)
-6
-
40
1.00
2.00
300
400
60
95
140
15
mV
mV
25
75
μA
mV
mV
HTC
LM27150/27151/27152
1.5A Very L.D.O Voltage Regulator
Reference LM27152
1.228
VREF
1.215
Reference Voltage
(Note 6)
IADJ
1.203
Adjust Pin Bias Current
Reference Voltage Temp.
Coefficient
1.24
Adjust Pin Bias Current
Temp. Coefficient
1.265
1.277
40
(Note 2)
1.252
80
120
V
V
nA
20
ppm/℃
0.1
nA/℃
Enable Input LM27151 / LM27152
VEN
Enable Input Voltage
Logic Low (Off)
0.8
Logic High (On)
2.4
100
VEN =26V
IEN
750
Enable Pin Input Current
2.5
VEN =0.8V
Regulator Output Current
Shutdown
600
5
10
(Note 7)
500
V
μA
μA
μA
Note 1. Employ pulse-testing procedures to minimize temperature rise
Note 2. Output Voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range.
Note 3. Dropout Voltage is defined as the input-to-output differential when the Output Voltage drops to 99% of its nominal value with
V+1V applied to VOUTIN. For Output Voltages below 2.3V the Dropout Voltage is the input-to-output voltage differential with the minimum
input voltage being 2.3V. The minimum input operation voltage is 2.3V.
Note 4. GND pin current is the regulator quiescent current. The total current drawn from the source is a sum of the load current plus the
GND pin current.
Note 5. For specified VOUT ≥2.5V.
Note 6. V≤VREFOUT≤(VIN-1V), 2.3V≤VIN≤26V, 10mA≤I≤1.5A, TLJ<TJ MAX.
Note 7. VEN ≤0.8V and VIN ≤26V, V=0
Note 8. When used in dual supply systems, where the regulator load is returned to a negative supply, the output voltage must be diodeclamped to ground.
Dec. 2011 – Rev.1.3.1
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HTC
LM27150/27151/27152
1.5A Very L.D.O Voltage Regulator
TYPICAL OPERATING CHARACTERISTICS
LM27150 Dropout Voltage vs, Output Current
LM27150 Dropout Voltage vs, Temperature
LM27150-5.0 Dropout Characteristics
LM27150 Ground Current vs, Supply Voltage
LM27150 Ground Current vs, Temperature
LM27150 Ground Current vs, Temperature
LM27150-3.3 Output Voltage vs. Temperature
LM27150-3.3 Short Circuit Current vs.
Temperature
LM27150 Ground Current vs. Input Voltage
Dec. 2011 – Rev.1.3.1
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HTC
LM27150/27151/27152
1.5A Very L.D.O Voltage Regulator
APPLICATION INFORMATION
The LM27150 are high performance low-dropout voltage regulators suitable for all moderate to high current
voltage regulator applications. Their 350mV dropout voltage at full load makes them especially valuable in
battery powered systems and as high efficiency noise filters in "post-regulator" applications. Unlike older
NPN-pass transistor designs, dropout performance of the PNP output of these devices is limited merely by
the low VCE saturation voltage.
The LM27150 family of regulators is fully protected from damage due to fault conditions. Current Limiting is
provided. This limiting is linear; output current under overload conditions is constant. Thermal shutdown
disables the device when the die temperature exceeds the 125℃ maximum safe operating temperature.
Transient protection allows device survival even when the input voltage spikes between -20V and +30V.
When the input voltage exceeds about 28V, the over voltage sensor temporarily disables the regulator.
VIN
VIN
CIN
+
VOUT
OUT
+
GND
COUT
Figure 1. Linear regulators require only two capacitors for operation.
Thermal Design
Linear regulators are simple to use. The most complicated design parameters to consider are thermal
characteristics. Thermal design requires the following application-specific parameters:
- Maximum ambient temperature, TA
- Output Current, IOUT
- Output Voltage, VOUT
- Input Voltage, VIN
First, we calculate the power dissipation of the regulator from these numbers and the device parameters
from this datasheet.
PD=IOUT(1.01VIN-VOUT)
Where the ground current is approximated by 1% of IOUT. Then the heat sink thermal resistance is
determined with this formula:
T
-T
θSA = JMAX A - (θJC + θCS )
PD
Where TJMAX ≤ 125℃ and θ CS is between 0 and 2℃/W.
Dec. 2011 – Rev.1.3.1
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HTC
LM27150/27151/27152
1.5A Very L.D.O Voltage Regulator
Capacitor Requirements
For stability and minimum output noise, a capacitor on the regulator output is necessary. The value of this
capacitor is dependent upon the output current; lower currents allow smaller capacitors. LM27150
regulators are stable with the 10uF minimum capacitor values at full load. Where the regulator is powered
from a source with a high AC impedance, a 0.1uF capacitor connected between input and GND is
recommended. This capacitor should have good characteristics to above 250kHz.
Minimum Load Current
The LM27150 regulators are specified between finite loads. If the output is too small, leakage currents is too
small, leakage currents dominate and the output voltage rises. The 5mA minimum load current swamps any
expected leakage current across the operating temperature range.
Adjustable Regulator Design
The adjustable regulator versions, LM27152 allows programming the output voltage anywhere between
1.25V and the 25V maximum operating rating of the family.
Two resistors are used. Resistors can be quite large, up to 1MΩ, because of the very high input impedance
and low bias current of the sense comparator: The resistor values are calculated by:
R1=R2(
VOUT
‐ 1)
VREF
Where VOUT is desired output voltage, Figure 2 shows component definition. Applications with widely
varying load currents may scale the resistors to draw the minimum load current required for proper
operation.
VIN
VIN
VOUT
OUT
R1
+
CIN
EN
+
ADJ
COUT
GND
R2
VOUT = 1.240 x [1 + (R1/R2)]
Figure 2. Adjustable Regulator with Resistors
Error Flag
LM27151 versions feature and Error Flag, which looks at the output voltage and signals and error condition
when this voltage and signals an error condition when this voltage drops 5% below its expected value. The
error flag is an open-collector output that pulls low under fault conditions. It may sink 10mA. Low output
voltage signifies a number of possible problems, including an over-current fault (the device is in current
limit) and low input voltage. The flag output is inoperative during over temperature shutdown conditions.
Dec. 2011 – Rev.1.3.1
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HTC
LM27150/27151/27152
1.5A Very L.D.O Voltage Regulator
Enable input
LM27151 and LM27152 versions feature and enable (EN) input that allows ON/OFF control of the device.
Special design allows "zero" current drain when the device is disabled-only microamperes of leakage
current flows. The EN input has TTL/CMOS compatible thresholds for simple interfacing with logic, or may
be directly tied to ≤ 30V. Enabling the regulator requires approximately 20uA of current.
Dec. 2011 – Rev.1.3.1
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HTC
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