General Description
The MIC29150/29300/29500/29750 are high current, high accuracy, low-dropout voltage regulators. Using Micrel's proprietary Super ßeta PNP™ process with a PNP pass element, these regulators feature 300mV to 370mV (full load) dropout voltages and very low ground current. Designed for high current loads, these devices also find applications in lower current, extremely low dropout-critical systems, where their tiny dropout voltage and ground current values are important attributes.
The MIC29150/29300/29500/29750 are fully protected against overcurrent faults, reversed input polarity, reversed lead insertion, overtemperature operation, and positive and nega-tive transient voltage spikes. Five pin fixed voltage versions feature logic level ON/OFF control and an error flag which signals whenever the output falls out of regulation. Flagged states include low input voltage (dropout), output current limit, overtemperature shutdown, and extremely high voltage spikes on the input.
On the MIC29xx1 and MIC29xx2, the ENABLE pin may be tied to V IN if it is not required for ON/OFF control. The MIC29150/29300/29500 are available in 3- and 5-pin TO-220 and surface mount TO-263 packages. The MIC29750 7.5A regulators are available in 3- and 5-pin TO-247 packages.Features
•High Current Capability
MIC29150/29151/1.5A MIC29300/29301/3A MIC29500/29501/5A MIC29750/7.5A •.350mV at Full Load •Low Ground Current
观测值•Accurate 1% Guaranteed Tolerance
•Extremely Fast Transient Response
•Reverse-battery and “Load Dump” Protection
•Zero-Current Shutdown Mode (5-Pin versions)
•Error Flag Signals Output Out-of-Regulation
(5-Pin versions)
•Also Characterized For Smaller Loads With Industry-Leading Performance Specifications
•Fixed Voltage and Adjustable Versions Applications
•Battery Powered Equipment
•High-Efficiency “Green” Computer Systems •Automotive Electronics
•High-Efficiency Linear Power Supplies
•High-Efficiency Post-Regulator For Switching Supply
MIC29150/29300/29500/29750Micrel大功率led
电源 Part Number Temp. Range*Volts Current Package MIC29500-3.3BT –40 to +125°C 3.3 5.0A TO-2
20MIC29500-5.0BT –40 to +125°C 5.0 5.0A TO-220MIC29501-3.3BT –40 to +125°C 3.3 5.0A TO-220-5MIC29501-5.0BT –40 to +125°C 5.0 5.0A TO-220-5MIC29501-3.3BU –40 to +125°C 3.3 5.0A TO-263-5MIC29501-5.0BU –40 to +125°C 5.0 5.0A TO-263-5MIC29502BT –40 to +125°C Adj 5.0A TO-220-5MIC29502BU –40 to +125°C Adj 5.0A TO-263-5MIC29503BT –40 to +125°C Adj 5.0A TO-220-5MIC29503BU –40 to +125°C Adj 5.0A TO-263-5MIC29750-3.3BWT –40 to +125°C 3.37.5A TO-247-3MIC29750-5.0BWT –40 to +125°C 5.07.5A TO-247-3MIC29751-3.3BWT –40 to +125°C 3.37.5A TO-247-5MIC29751-5.0BWT –40 to +125°C 5.07.5A TO-247-5MIC29752BWT
–40 to +125°C
Adj
7.5A
TO-247-5
云朵
制造机Ordering Information
Part Number Temp. Range*Volts Current Package MIC29150-3.3BT –40 to +125°C 3.3 1.5A TO-2
20MIC29150-4.2BT –40 to +125°C 4.2 1.5A TO-220MIC29150-5.0BT –40 to +125°C 5.0 1.5A TO-220MIC29150-12BT –40 to +125°C 12 1.5A TO-220MIC29150-3.3BU –40 to +125°C 3.3 1.5A TO-263MIC29150-5.0BU –40 to +125°C 5.0 1.5A TO-263MIC29150-12BU –40 to +125°C 12 1.5A TO-263MIC29151-3.3BT –40 to +125°C 3.3 1.5A TO-220-5MIC29151-5.0BT –40 to +125°C 5.0 1.5A TO-220-5MIC29151-12BT –40 to +125°C 12 1.5A TO-220-5MIC29151-3.3BU –40 to +125°C 3.3 1.5A TO-263-5MIC29151-5.0BU –40 to +125°C 5.0 1.5A TO-263-5MIC29151-12BU –40 to +125°C 12 1.5A TO-263-5MIC29152BT –40 to +125°C Adj 1.5A TO-220-5MIC29152BU –40 to +125°C Adj 1.5A TO-263-5MIC29153BT –40 to +125°C Adj 1.5A TO-220-5MIC29153BU –40 to +125°C Adj 1.5A TO-263-5MIC29300-3.3BT –40 to +125°C 3.3 3.0A TO-220MIC29300-5.0BT –40 to +125°C 5.0 3.0A TO-220MIC29300-12BT –40 to +125°C 12 3.0A TO-220MIC29300-3.3BU –40 to +125°C 3.3 3.0A TO-263MIC29300-5.0BU –40 to +125°C 5.0 3.0A TO-263MIC29300-12BU –40 to +125°C 12 3.0A TO-263MIC29301-3.3BT –40 to +125°C 3.3 3.0A TO-220-5MIC29301-5.0BT –40 to +125°C 5.0 3.0A TO-220-5MIC29301-12BT –40 to +125°C 12 3.0A TO-220-5MIC29301-3.3BU –40 to +125°C 3.3 3.0A TO-263-5MIC29301-5.0BU –40 to +125°C 5.0 3.0A TO-263-5MIC29301-12BU –40 to +125°C 12 3.0A TO-263-5MIC29302BT –40 to +125°C Adj 3.0A TO-220-5MIC29302BU –40 to +125°C Adj 3.0A TO-263-5MIC29303BT –40 to +125°C Adj 3.0A TO-220-5MIC29303BU
–40 to +125°C
Adj
3.0A
TO-263-5
MIC29xx0 versions are 3-terminal fixed voltage devices.MIC29xx1 are fixed voltage devices with ENABLE and ERROR flag. MIC29xx2 are adjustable regulators with ENABLE control.MIC29xx3 are adjustables with an ERROR flag.
* Junction Temperature
MIC29150/29300/29500/29750Micrel
Absolute Maximum Ratings
Power Dissipation ....................................Internally Limited Lead Temperature (Soldering, 5 seconds)................260°C Storage Temperature Range ...................–65°C to +150°C Input Supply Voltage (Note 1).......................–20V to +60V
Operating Ratings
Operating Junction Temperature .............–40°C to +125°C Maximum Operating 26V TO-220 θJC ..............................................................2°C/W TO-263 θJC ..............................................................2°C/W TO-247 θJC ...........................................................1.5°C/W
Electrical Characteristics
All measurements at T J = 25°C unless otherwise noted. Bold values are guaranteed across the operating temperature range.Adjustable versions are programmed to 5.0V.Parameter Condition Min Typ
Max Units Output Voltage
I O = 10mA
–11%10mA ≤ I O ≤ I FL , (V OUT + 1V) ≤ V IN ≤ 26V (Note 2)
–2
2%Line Regulation I O = 10mA, (V OUT + 1V) ≤ V IN ≤ 26V
0.060.5%Load Regulation V IN = V OUT + 5V, 10mA ≤ I OUT ≤ I FULL LOAD (Note 2, 6)0.21%∆V O Output Voltage (Note 6)20100智能
美甲 ppm/°C
∆T
Temperature Coef.
Dropout Voltage
∆V OUT = – 1%, (Note 3)MIC29150I O = 100mA
80200mV
I O = 750mA 220I O = 1.5A
350600MIC29300I O = 100mA
80175I O = 1.5A 250I O = 3A
370600MIC29500I O = 250mA
125250I O = 2.5A 250I O = 5A
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防水涂膜
370600MIC29750I O = 250mA80200I O = 4A 270I O = 7.5A 425600Ground Current MIC29150I O = 750mA, V IN = V OUT + 1V 820mA I O = 1.5A
22MIC29300I O = 1.5A, V IN = V OUT + 1V 1035mA I O = 3A
37MIC29500I O = 2.5A, V IN = V OUT + 1V 1550mA I O = 5A
70MIC29750
I O = 4A, V IN = V OUT + 1V 3575
mA
I O = 7.5A
120I GNDDO Ground Pin V IN = 0.5V less than specified V OUT . I OUT = 10mA Current at Dropout
MIC291500.9mA MIC29300 1.7mA MIC29500 2.1mA MIC29750 3.1mA Current Limit
MIC29150V OUT = 0V (Note 4) 2.1 3.5A MIC29300V OUT = 0V (Note 4) 4.5 5.0A MIC29500V OUT = 0V (Note 4)7.510.0A MIC29750V OUT = 0V (Note 4)9.515
A e n , Output Noise C L = 10µF 400µV (rms)
Voltage
(10Hz to 100kHz)C L = 33µF
260
I L = 100mA
Ground Current in Shutdown
MIC29150/1/2/3 only
V EN = 0.4V
2
10µA 30µA
MIC29150/29300/29500/29750Micrel
Electrical Characteristics (Continued)
Reference
MIC29xx2/MIC29xx3
Parameter Conditions
Min Typical Max Units Reference Voltage
1.228 1.240
1.252V 1.215
1.265V max Reference Voltage (Note 8)
1.203
1.277V Adjust Pin 4080nA
Bias Current 120
Reference Voltage (Note 7)20ppm/°C
Temperature Coefficient
Adjust Pin Bias
0.1nA/°C
Current Temperature Coefficient
Flag Output (Error Comparator) MIC29xx1/29xx3Output Leakage V OH = 26V
0.01
1.00µA
Current 2.00Output Low Device set for 5V. V IN = 4.5V 220300mV
Voltage
I OL = 250µA
400
Upper Threshold Device set for 5V (Note 9)
4060mV
Voltage
25
Lower Threshold Device set for 5V (Note 9)75
95mV
Voltage 140
Hysteresis Device set for 5V (Note 9)15mV
ENABLE Input Input Logic Voltage V
Low (OFF)0.8
High (ON) 2.4
Enable Pin V EN = 26V 100周薄
600µA
Input Current
750V EN =0.8V
1µA
2
Regulator Output (Note 10)
10
µA
Current in Shutdown
500
MIC29xx1/MIC29xx2
MIC29150/29300/29500/29750Micrel Notes
Note 1:Maximum positive supply voltage of 60V must be of limited duration (<100msec) and duty cycle (≤1%). The maximum continuous supply voltage is 26V.
Note 2:Full Load current (I FL) is defined as 1.5A for the MIC29150, 3A for the MIC29300, 5A for the MIC29500, and 7.5A for the MIC29750 families. Note 3:Dropout voltage is defined as the input-to-out
put differential when the output voltage drops to 99% of its nominal value with V OUT + 1V applied to V IN
Note 4:V IN = V OUT (nominal) + 1V. For example, use V IN = 4.3V for a 3.3V regulator or use 6V for a 5V regulator. Employ pulse-testing procedures to minimize temperature rise.
Note 5:Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current plus the ground pin current.
Note 6:Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range.
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. Specifications are for a 200mA load pulse at V IN = 20V (a 4W pulse) for T = 10ms.
Note 8:V REF≤ V OUT≤ (V IN – 1 V), 2.3V ≤ V IN≤ 26V, 10mA < I L≤ I FL, T J ≤ T J MAX.
Note 9: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 = V OUT /V REF = (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 95 mV x 5V/1.240 V = 384 mV. Thresholds remain constant as a percent of V OUT as V OUT is varied, with the dropout warning occurring at typically 5% below nominal,
7.7% guaranteed.
Note 10:V EN≤ 0.8V and V IN≤ 26V, V OUT = 0.
Note 11:When used in dual supply systems where the regulator load is returned to a negative supply, the output voltage must be diode clamped to ground.
Block Diagram
EN
IN
FLAG
†
*Feedback network in fixed versions only
†Adjustable version only
Typical Applications
Figure 1. Fixed output voltage.Figure 2. Adjustable output voltage configuration. For 5V ± 3.3V ± 1% @ 5A
V OUT = 1.240V× [1 + (R1 / R2)]
V IN V OUT
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