LM39500_08 Datasheet, PDF (1/6 Pages) HTC Korea TAEJIN Technology Co. – 5A Low-Voltage Low-Dropout Regulator

5A Low-Voltage Low-Dropout Regulator
LM39500/39501/39502
FEATURES
● 5.0A minimum guaranteed output current
● 400mV typical dropout voltage
Ideal for 3.0V to 2.5V conversion
Ideal for 2.5V to 1.8V or 1.5V conversion
● 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
● Error flag output - LM39501 only
● Ceramic capacitor stable(See application
information)
● Adjustable version - LM39502 only
● Moisture Sensitivity Level 3
TO263-3L / TO220-3L
(39500-x.x Fixed only)
1
3
1. In
2. Gnd
3. Out
1
3
TO263-5L / TL220-5L
(39501-x.x & 39502 only)
1
5
1. En
2. In
3. Gnd
4. Out
1
5. Flg or Adj
5
APPLICATIONS
PIN DESCRIPTION
● Low-voltage Digatal Ics
● LDO linear regulator for PC add-in cards
Enable
(Input)
CMOS-compatible control input.
Logic high = enable, logic
Logic low or open = Shutdown
● High-efficiency linear power supplies
IN Supply (Input): +16V maximum supply
● Multimedia and PC processor supplies
GND Ground pin and TAB are internally connected.
● SMPS post regulator
OUT Regulator Output
● Low-voltage microcontrollers
FLG Flag (Output): Open-collector error flag output.
● Strong ARM™ processor supply
ADJ Adjustment Input: Feedback input.
ORDERING INFORMATION
Device
Marking
Package
DESCRIPTION
LM39500R- X.X
LM39500-X.X
TO-263
The LM39500, LM39501 and LM39502 is a 5A low drop LM39500T-X.X
LM39500-X.X
TO-220
−out linear voltage regulator that provides a low-voltage, LM39501R-X.X
LM39501-X.X
TO-263
high-current output with a minimum of external
LM39501T-X.X
LM39501-X.X
TO-220
components. Utilizing Super beta PNP pass element.
LM39502R-Adj
LM39502-Adj
TO-263
The LM39500 offers extremely low dropout (typically
LM39502T-Adj
LM39502-Adj
TO-220
400mV at 5A) and low ground current (typically 70mA
* X.X = Fixed Vout = 1.5V, 1.8V, 2.5V, 3.3V, 5.0V
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 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
−1−
HTC