5A Low-Voltage Low-Dropout Regulator
LM39500/39501/39502
FEATURES
TO263-3L / TO220-3L
(39500-x.x Fixed only)
● 5.0A minimum guaranteed output current
● 400mV typical dropout voltage
Ideal for 3.0V to 2.5V conversion
1. In
2. Gnd
3. Out
Ideal for 2.5V to 1.8V or 1.5V conversion
● 1% initial accuracy
1
3
● Low ground current
3
1
● Current limiting and thermal shutdown
● Reversed-battery protection
● Reversed-leakage protection
● Fast transient response
TO263-5L / TL220-5L
(39501-x.x & 39502 only)
● TTL/CMOS compatible enable pin => LM39501
● Error flag output - LM39501 only
1. En
2. In
● Ceramic capacitor stable(See application
information)
3. Gnd
1
4. Out
1
5
● Adjustable version - LM39502 only
● Moisture Sensitivity Level 3
5. Flg or Adj
5
PIN DESCRIPTION
CMOS-compatible control input.
APPLICATIONS
Enable
Logic high = enable, logic
● Low-voltage Digatal Ics
(Input)
Logic low or open = Shutdown
● LDO linear regulator for PC add-in cards
● High-efficiency linear power supplies
● Multimedia and PC processor supplies
● SMPS post regulator
IN
Supply (Input): +16V maximum supply
Ground pin and TAB are internally connected.
Regulator Output
GND
OUT
FLG
ADJ
Flag (Output): Open-collector error flag output.
Adjustment Input: Feedback input.
● Low-voltage microcontrollers
● Strong ARM™ processor supply
ORDERING INFORMATION
Marking
Device
Package
TO-263
TO-220
TO-263
TO-220
TO-263
TO-220
LM39500R- X.X
LM39500T-X.X
LM39501R-X.X
LM39501T-X.X
LM39502R-Adj
LM39502T-Adj
LM39500-X.X
LM39500-X.X
LM39501-X.X
LM39501-X.X
LM39502-Adj
LM39502-Adj
DESCRIPTION
The LM39500, LM39501 and LM39502 is a 5A low drop
−out 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).
* X.X = Fixed Vout = 1.5V, 1.8V, 2.5V, 3.3V, 5.0V
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 allows the LM39500/1/2 to
provide LM39500/1/2 to 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 response.
The 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.
2008 - Ver 1.0
HTC
− 1 −