MIC29303 _ BDTIC a Leading Distributor in China

MIC29303

The MIC29150/29300/29500/29750 are high-current, high-accuracy, low-dropout voltage regulators. Using Micrel's proprietary Super βeta PNP^® process with a PNP pass element, these regulators feature 350mV to 425mV (full load) typical 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, over-temperature operation, and positive and negative 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, over-temperature 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-pin and 5-pin TO-220 and surface-mount TO-263 (D²Pak) packages.

The MIC29750 7.5A regulators are available in 3-pin and 5-pin TO-247 packages. The 1.5A, adjustable output MIC29152 is available in a 5-pin power D-Pak (TO-252) package.

For applications with an input voltage of 6V or below, see MIC37xxx LDOs.

Features

High current capability MIC29150/29151/29152/29153: 1.5A MIC29300/29301/29302/29303: 3A MIC29500/29501/29502/29503: 5A MIC29750/29751/29752: 7.5A
MIC29150/29151/29152/29153: 1.5A
MIC29300/29301/29302/29303: 3A
MIC29500/29501/29502/29503: 5A
MIC29750/29751/29752: 7.5A
Low dropout voltage
Low ground current
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

Parameter

Parameter Name Value	Value
Product Type Single LDOs	Single LDOs
# of Out 1	1
IOUT #1
IOUT #2
IOUT #3
IOUT #4
IOUT (mA) 3000	3000
VIN Min (V) 2.25	2.25
VIN Max (V) 26	26
VOUT (V) Adj	Adj
Voltage Drop Typ (mV) 370	370
IGND Typ (µA) 3	3
Tol Typ % ±1	±1
Noise (µV) rms 260	260
Soft Start Pin
Load Dump Yes	Yes
Rev Bat Yes	Yes
Reverse Current Protect Yes	Yes

Documents

MIC29150/29300/29500/29750 - High-Current Low-Dropout Regulators	Data Sheets	11/09/2015	835KB
Micrel AN 12 - Design Considerations for 5V to 3.3V Pass Regulators	AppNote	10/01/2015	28KB
Micrel AN 43 - Improving Adjustable Regulator Accuracy	AppNote	10/01/2015	59KB

Ordering Information

Part Number	Leads	Package Type	Temp Range	Packing	1+	26+	100+	1000+	5000+
MIC29303WT	5	TO-220	-40C to +125C	TUBE	4.14	3.45	3.14	2.62	2.42
MIC29303WU	5	DDPAK	-40C to +125C	TUBE	**	**	**	**	**
MIC29303WU-TR	5	DDPAK	-40C to +125C	T/R	4.14	3.45	3.14	2.62	2.42