TS29153CM5 [TSC]
1.5A Ultra Low Dropout Positive Voltage Regulator; 1.5A超低压差正电压稳压器
| 型号： | TS29153CM5 |
| 厂家： | 
TAIWAN SEMICONDUCTOR COMPANY, LTD |
| 描述： | 1.5A Ultra Low Dropout Positive Voltage Regulator |
| 文件： | 总7页 (文件大小：155K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TS29151/52/53
1.5A Ultra Low Dropout Positive Voltage Regulator
Low Dropout Voltage 0.6V max.
Enable Input Control
Adjustable Output
Error Flag Detection
General Description
The TS29151/52/53 series are using process with a PNP pass element for high current, high accuracy and low dropout
voltage regulators. These regulator s feature 350mV(typ) dropout voltages and very low ground current, these devices
also find applications in lower current and low dropout critical systems, where their tiny dropout voltage and ground
current values are important attributes.
The TS29151/52/53 series are fully protected against over current faults, reversed input polarity, reversed lead insertion,
over temperature operation, positive and negative transient voltage spikes, logic level enable control and error flag which
signals whenever the output falls out of regulation.
On the TS29151 and TS29152, the enable pin may be tied to Vin if it is not required for enable control. This series are
offered in 5-pin TO-263, TO-220 package.
Features
Ordering Information
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Dropout voltage typically 0.6V @Io=1.5A
Part No.
Operating Temp.
Package
Output current up to 1.5A
(Junction)
Low ground current
TS29151CZ5-xx
TS29152CZ5
TS29153CZ5
TS29151CM5-xx
TS29152CM5
TS29153CM5
Output voltage trimmed before assembly
Extremely fast transient response
+60V Transient peak voltage
-20V Reverse peak voltage
Zero current shutdown mode
Error flag signals output out of regulation
Internal current limit
TO-220-5L
-40 ~ +125 oC
TO-263-5L
Note: Where xx denotes voltage option, available are
12V, 5.0V, 3.3V and 2.5V. Leave blank for adjustable
version. Contact factory for additional voltage options.
Thermal shutdown protection
Applications
ꢀ
Battery power equipment
ꢀ
High efficiency linear power supplies
ꢀ
Automotive electronics
ꢀ
High efficiency post regulator for switching supply
ꢀ
High efficiency “Green” computer system
Absolute Maximum Rating (Note 1)
Input Supply Voltage (Note 2)
Operation Input Voltage
Vin
-20V ~ +60
V
V
Vin (operate)
26
Internally Limited
-25 ~ +125
-65 ~ +150
5
Power Dissipation (Note 3)
PD
TJ
W
oC
oC
S
Operating Junction Temperature Range
Storage Temperature Range
Lead Soldering Temperature (260 oC)
TSTG
TS29151/52/53
1-1
2003/12 rev. D
Electrical Characteristics
Vin = Vout + 1V, Venable= 2.4V, IL = 10mA, Co = 10uF, Adjustable versions are programmed to 5V output, Tj = 25 oC
unless otherwise specified.
Parameter
Conditions
Min
Typ
Max
Unit
Output Voltage
0.990|Vo|
0.980|Vo|
12 / 5.0
3.3/ 2.5
1.010|Vo|
1.020|Vo|
V
Output Voltage
10mA ≤ IL ≤ 1.5A,
Vo+1V ≤ Vin ≤ 26V
Input Supply Voltage
Output Voltage Temperature
Coefficient
--
--
--
26
V
20
100
ppm/ oC
Line Regulation
Vo+1V ≤ Vin ≤ 26V
10mA ≤ IL ≤ 1.5A
IL=100mA
IL=750mA
IL=1.5A
--
--
--
--
--
--
--
--
--
--
--
0.05
0.2
80
0.5
1.0
200
%
%
Load Regulation
Dropout Voltage (Note 4)
200
350
8
mV
mA
600
--
Quiescent Current (Note 5)
IL=750mA
IL=1.5A
22
--
Short Circuit Current (Note 6)
Output Noise,
Vout=0
2.1
600
400
260
3.5
--
A
CL=2.2uF
CL=10uF
10Hz to 100KHz, IL=100mA
--
uVrms
CL=33uF
--
Reference (TS29152 / TS29153)
Reference Voltage
0.980|Vo|
0.970|Vo|
1.24
1.020|Vo|
1.030|Vo|
Reference Voltage
10mA ≤ IL ≤ 1.5A,
2.3V ≤ Vin ≤ 26V
V
Adjust Pin Bias Current
Reference Voltage Temperature
Coefficient
--
--
40
20
80
--
nA
ppm/ oC
(Note 7)
Adjust Pin Bias Current
Temperature Coefficient
--
0.1
--
nA/ oC
Flag Output (TS29151 / TS29153)
Output Leakage Current
Output Low Voltage
VOH=26V
--
--
--
--
2
300
--
uA
mV
mV
mV
mV
Vin=4.5V, IOL=250uA
(Note 8)
Upper Threshold Voltage
Lower Threshold Voltage
Hysteresis
40
--
60
75
15
(Note 8)
95
--
(Note 8)
--
Enable Input (TS29151 / TS29152)
Input Logic Voltage
Low (OFF)
--
2.4
--
--
--
0.8
--
V
High (ON)
Ven=26V
Enable Pin Input Current
--
750
5
uA
uA
Ven=0.8V
--
--
Regulator Output Current
Shutdown
Ven ≤ 0.8V, Vin ≤ 26V,
Vout=0
--
10
500
TS29151/52/53
2-2
2003/12 rev. D
Thermal Performance
Condition
Thermal Resistance
Junction to Ambient
Package type
Typ
60
Unit
oC/W
TO-220-5L
TO-263-5L
80
Note 1: Absolute Maximum Rating is limits beyond which damage to the device may occur. For guaranteed
specifications and test conditions see the Electrical Characteristics.
Note 2: Maximum positive supply voltage of 60V must be limited duration (<100mS) and duty cycle (<1%).
Note 3: The maximum allowable power dissipation is a function of the maximum junction temperature, Tj, the junction to
ambient thermal resistance, θja, and the ambient temperature , Ta. Exceeding the maximum allowable power
dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. The effective
value of θja can be reduced by using a heatsink.
Note 4: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its
nominal value measured at 1V differential.
Note 5: Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the
ground pin current and output load current.
Note 6: Output current will decrease with increasing temperature, but it will be not dropped below 1.5A at the maximum
specified temperature.
Note 7: Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is
applied, excluding load or line regulation effects. Specification are for a 200mA load pulse at Vin=20V(a 4W
pulse) for T=10mS
Note 8: Comparator thresholds are expressed in terms of a voltage differential at the adjust terminal below the nominal
reference voltage measured at 6V input. To express these thresholds in terms of output voltage change,
multiply by the error amplifier gain = Vout / Vref = (R1+R2) / R2. For example, at a programmed output voltage
of 5V, the error output is guaranteed to go low when the output drops by 95mV x 5V / 1.24V = 384mV.
Thresholds remain constant as a percent of Vout as Vout is varied, with the dropout warning occurring at
typically 5% below nominal, 7.7% guaranteed.
Block Diagram
*
Feedback network is fixed output versions only (TS29151)
** Adjustable output version only (TS29152 / TS29153)
TS29151/52/53
3-3
2003/12 rev. D
Pin Assignment
Pin No.
Pin
Pin
Configuration
Description
TS29151
TS29152
TS29153
Enable (input): TTL/COMS compatible input. Logic high is
enable; logic low or open is shutdown
1
1
Enable
2
3
2
3
2
3
Input
Unregulated input: +26V maximum supply
Ground: Ground pin and TAB/heatsink are internally
connected.
Ground
4
5
4
5
4
1
Output
Flag
Regulator output
Error Flag (output): Open-collector output. Active low
indicates an output fault condition.
Adjustment input: Feedback input. Connect to resistive
voltage-divider network.
5
Adjust
Typical Application Circuit
TS29151
TS29152
TS29153
TS29151/52/53
4-4
2003/12 rev. D
Application Information
Application Information
Thermal Characteristics
The TS29151/52/53 series are high performance with
low dropout voltage regulator suitable for moderate to
high current and voltage regulator application. Its
350mA(typ) dropout voltage at full load and over
temperature makes it especially valuable in battery
power systems and as high efficiency noise filters in
post regulator applications. Unlike normal NPN
transistor design, where the base to emitter voltage
drop and collector to emitter saturation voltage limit the
minimum dropout voltage, dropout performance of the
PNP output of these devices is limited only by low Vce
saturation voltage.
TS29151/52/53 series linear regulators are simple to
use, the most complicated design parameters to
consider are thermal characteristics, thermal design
requires the following application specification
parameters:
Maximum ambient temperature, Ta
Output current, Iout
Output voltage, Vout
Input voltage, Vin
We calculate the power dissipation of the regulator
from these numbers and the device parameters from
this data sheet. A heatsink may be required depending
on the maximum power dissipation and maximum
ambient temperature of the application. Under all
possible operating conditions, the junction temperature
must be within the range specified under absolute
maximum ratings. To determine if the heatsink is
required, the power dissipated by the regulator, PD
must be calculated.
The TS29151/52/53 series is fully protected from
damage due to fault conditions. Linear current limiting is
provided. Output current during overload conditions is
constant. Thermal shutdown the device when the die
temperature exceeds the maximum safe operating
temperature. Transient protection allows device survival
even when the input voltage spikes above and below
nominal. The output structure of these regulators allows
voltages in excess of the desired output voltage to be
applied without reverse current flow.
The below formula shows the voltages and currents for
calculating the PD in the regulator:
Iin = IL / IG
PD = (Vin-Vout) * IL + (Vin) * IG
Capacitor Requirement
Ex. PD = (3.3V-2.5V) * 0.5A + 3.3V * 11mA
= 400mW + 36mW
The TS29151/52/53 series requires an output capacitor
to maintain stability and improve transient response is
necessary. The value of this capacitor is dependent
upon the output current, lower currents allow smaller
capacitors. TS29151/52/53 series regulators are stable
with the 10uF minimum capacitor value at full load.
Where the regulator is powered from a source with high
AC impedance, a 0.1uF capacitor connected between
input and ground is recommended. The capacitor
should have good characteristics to above 250KHz. The
capacitance values will be help to improved transient
response, ripple rejection and output noise.
= 436mW
Remark: IL is output load current,
IG is ground current.
Vin is input voltage
Vout is output voltage
The next parameter which must be calculated is the
maximum allowable temperature rise, TR(max). this is
calculated by the using to formula:
TR(max) = TJ(max) – TA(max)
Where: TJ(max) is the maximum allowable junction
temperature, which is 125 oC for commercial
grade parts.
Minimum Load Current
TA(max)
is
the
maximum
ambient
The TS29151/52/53 series is specified between finite
loads. If the output current is too small leakage currents
dominate and the output voltage rises. A 10mA
minimum load current swamps any expected leakage
current across the operating temperature range.
temperature which will be encountered in the
application. Using the calculated values for TR(max)
and PD, the maximum allowable value for the junction
to ambient thermal resistance, θja, can now be found:
θja = TR(max) / PD
TS29151/52/53
5-5
2003/12 rev. D
Application Information (continues)
Adjustable Regulator Design
The adjustable regulator versions (TS29152/53) is
allow to programming the output voltage anywhere
between 1.25 and the 26V 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 / 1.24) – 1]
Where is Vout the desired output voltage. Above
application circuit shows component definition.
Applications with widely varying load currents may
scale the resistors to draw the minimum load current
required for proper operation.
Error Flag
TS29151 and TS29153 versions feature an Error Flag,
which looks at the output 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.
Enable Input
TS29151 and TS29152 versions feature an 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 flow. 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.
TS29151/52/53
6-6
2003/12 rev. D
TO-220-5L Mechanical Drawing
G
TO-220 DIMENSION
MILLIMETERS
H
B
A
INCHES
MIN
DIM
MIN
MAX
10.50
4.440
2.940
1.020
1.830
14.13
5.225
1.370
29.44
2.925
0.477
8.800
6.510
15.31
MAX
0.413
0.175
0.116
0.040
0.072
0.556
0.206
0.054
1.159
0.115
0.019
0.346
0.256
0.603
M
L
A
B
C
D
E
F
G
H
I
10.00
3.240
2.440
0.260
1.570
13.31
4.475
1.170
27.60
2.175
0.297
8.280
6.010
14.29
0.394
0.128
0.096
0.010
0.062
0.524
0.176
0.046
1.087
0.086
0.012
0.326
0.237
0.563
N
I
J
F
K
L
M
N
K
J
D
E
TO-263-5L Mechanical Drawing
TO-263 DIMENSION
MILLIMETERS
A
E
INCHES
DIM
F
MIN
10.220
14.600
0.750
1.573
4.560
1.240
2.280
0.280
8.240
1.540
MAX
10.260
15.870
0.770
1.827
4.570
1.270
2.790
0.320
8.280
1.800
MIN
MAX
0.404
0.625
0.030
0.072
0.180
0.050
0.110
0.013
0.326
0.071
A
B
C
D
E
F
G
H
I
0.402
0.575
0.030
0.062
0.179
0.049
0.090
0.011
0.324
0.060
J
B
I
C
G
J
D
H
TS29151/52/53
7-7
2003/12 rev. D
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