LM39501 HTC Korea, LM39501 Datasheet

LM39501

Manufacturer Part Number

LM39501

Description

5A Low-Voltage Low-Dropout Regulator

Manufacturer

HTC Korea

Datasheet

1.LM39501.pdf (6 pages)

Current page: 1 of 6
Download datasheet (193Kb)

•5.0A minimum guaranteed output current

•400mV typical dropout voltage

•1% initial accuracy

•Low ground current

•Current limiting and thermal shutdown

•Reversed-battery protection

•Reversed-leakage protection

•Fast transient response

•TTL/CMOS compatible enable pin-LM39501 only

•Error flag output - LM39501 only

•Ceramic capacitor stable(See application information)

•Adjustable version - LM39502 only

•Low-voltage Digatal Ics

•LDO linear regulator for PC add-in cards

•High-efficiency linear power supplies

•Multimedia and PC processor supplies

•SMPS post regulator

•Low-voltage microcontrollers

•Strong ARM™ processor supply

The LM39500, LM39501 and LM39502 is a 5A

low-dropout linear voltage regulator that provides

a low-voltage, high-current output with a

minimum of external components. Utilizing Super

beta PNP pass element, The LM39500 offers

extremely low dropout (typically 400mV at 5A)

and low ground current (typically 70mA at 5A).

The LM39500/1/2 is ideal for PC Add-In cards that need to convert from standard 5V or 3.3V, down to

new, lower core voltages. A guaranteed maximum dropout voltage of 500mV over all operating conditions

allows the LM39500/1/2 to provide 2.5V from a supply as low as 3V. The LM39500 also has fast transient

response, for heavy switching applications. The device requires only 47F of output capacitance to maintain

stability and achieve fast transient responseThe LM39500/1/2 is fully protected with overcurrent

limiting,thermal shutdown, reversed-battery and reversed-lead in-sertion protection. The LM39501 offers a

TTL-logic-compat-ible enable pin and an error flag that indicates undervoltage and overcurrent

conditions. The LM39500/1/2 comes in the TO-220 and TO-263 packages and is an ideal upgrade to

older,NPN-based linear voltage regulators.

The LM39502 is adjustable version.

5A Low-Voltage Low-Dropout Regulator

FEATURES

APPLICATIONS

DESCRIPTION

Ideal for 3.0V to 2.5V conversion

Ideal for 2.5V to 1.8V or 1.5V conversion

* X.X = Fixed Vout = 1.5V, 1.8V, 2.5V, 3.3V, 5.0V

LM39500R- X.X

LM39500T-X.X

LM39501R-X.X

LM39501T-X.X

LM39502R-Adj

LM39502T-Adj

Enable

(Input)

PIN DESCRIPTION

ORDERING INFORMATION

GND

OUT

FLG

ADJ

Device

CMOS-compatible control input.

Logic high = enable, logic

Logic low or open = Shutdown

Supply (Input): +16V maximum supply

Ground pin and TAB are internally connected.

Regulator Output

Flag (Output): Open-collector error flag output.

Adjustment Input: Feedback input.

TO263-3L / TO220-3L

TO263-5L / TL220-5L

(39501-x.x & 39502 only)

(39500-x.x Fixed only)

LM39500/39501/39502

LM39500-X.X

LM39501-X.X

LM39502-Adj

1. In

2. Gnd

3. Out

1. En

2. In

3. Gnd

4. Out

5. Flg or Adj

Marking

Package

TO-263

TO-220

TO-263

TO-220

TO-263

TO-220

HTC

Related parts for LM39501

LM39501 Summary of contents

Page 1

... The device requires only 47F of output capacitance to maintain stability and achieve fast transient responseThe LM39500/1/2 is fully protected with overcurrent limiting,thermal shutdown, reversed-battery and reversed-lead in-sertion protection. The LM39501 offers a TTL-logic-compat-ible enable pin and an error flag that indicates undervoltage and overcurrent conditions ...

Page 2

... Lead Temperature (soldering, 5 sec) : 260°C ESD, Note 3 Operating Ratings (Note 2) Supply Voltage (VIN) : +2.25V to +16V Enable Voltage (VEN) : +16V Maximum Power Dissipation (PD(max)) Junction Temperature (TJ) : –40°C to +125°C Package Thermal Resistance TO-263(θ 2°C/W JC TO-220(θ 2°C/W JC LM39500/39501/39502 Note 4 2 LM39501 HTC ...

Page 3

... Low-Voltage Low-Dropout Regulator Block Diagram LM39500 Fixed (1.5V,1.8V,2.5V,3.3V,5.0V) LM39501 Fixed with Flag and Enable LM39502 Adjustable 3 LM39500/39501/39502 HTC ...

Page 4

Low-Voltage Low-Dropout Regulator Note 1. Exceeding the absolute maximum ratings may damage the device. Note 2. The device is not guaranteed to function outside its operating rating. Note 3. Devices are ESD sensitive. Handling precautions recommended. Note 4. P ...

Page 5

Low-Voltage Low-Dropout Regulator Application Information The LM39500 high-performance low-dropout voltage regulator suitable for moderate to high-current voltage regu-lator applications. Its 400mV dropout voltage at full load makes it especially valuable in battery-powered systems and as a high-efficiency ...

Page 6

... The flag is inoperative during overtemperature shutdown. Enable Input The LM39501 version features an enable input for on/off control of the device. Its shutdown state draws “zero” current (only microamperes of leakage). The enable input is TTL/ CMOS compatible for simple logic interface, but can be connected 20V ...

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