TS39300/1/2/3/4
3A Ultra Low Dropout Voltage Regulator
with Multi-Function
1/12 Version: A07
General Description
TS39300/1/2/3/4 are 3A ultra low dropout linear voltage regulators that provide low voltage, high current output with a
minimum of external components. The TS3930x series offers extremely low dropout (typically 400mV at 3A) and low
quiescent current (typically 36mA at 3A).
TS39300/1/2/3/4 is ideal for PC add-in cards that need to convert from standard 3.3V to 2.5V or 2.5V to 1.8V. A
guaranteed maximum dropout voltage of 500mV over all operating conditions allows the TS39300/1/2/3/4 to provide
2.5V from a supply as low as 3V, and 1.8V from a supply as low as 2.5V. The TS39300/1/2/3/4 also has fast transient
response for heavy switching applications. The device requires only 47uF of output capacitor to maintain stability and
achieve fast transient response.
On the TS39300/1/2/3/4, the enable pin may be tied to input voltage if it is not required for enable control.
Features
● Dropout voltage typically 0.4V @Io=3A
● Output Current up to 3A
● Low Ground Current
● Extremely Fast Transient Response
● Current Limit & Thermal Shutdown
● Reversed Leakage & Reverse Battery Protection
● Error Flag Signals Output (TS39301 only)
● Adjustable Version (TS39302 only)
● Output Voltage Sense (TS39303/4 only)
Application
● PowerPCTM Power Supplies
● Battery Powered Equipment
● Consumer and Personal Electronics
● High Efficiency Linear Power Supplies
● SMPS Post Regulator and DC to DC Modules
● High-efficiency Post Regulator for Switching Supply
● Low Voltage Microcontrollers and Digital Logic
800pcs / 13” Reel
Note: Where xx denotes voltage option, available are
50=5V, 33=3.3V, 25=2.5V, 18=1.8V
Contact to factory for addition output voltage option.
Pin Definition:
TS39301xx
Pin Definition:
TS39300
1. Input
2. Ground (tab)
3. Output
TS39300/1/2/3/4
3A Ultra Low Dropout Voltage Regulator
with Multi-Function
2/12 Version: A07
Absolute Maximum Rating (Note 1)
Storage Temperature Range
Lead Soldering Temperature (260oC)
Operating Rating (Note 2)
Power Dissipation (Note 4)
Operating Junction Temperature Range
Electrical Characteristics
VIN = V
OUT
+ 1V, VIN =2.5V for fixed reference output voltage, Venable= 2.25V, Ta = 25oC, unless otherwise specified.
10mA ≤ IL ≤ 3A,
Vo+1V ≤ VIN ≤ 8V
Fixed Reference Output Voltage
Fixed Reference Output Voltage
10mA ≤ IL ≤ 3A,
2.5V ≤ VIN ≤ 8V
IL=10mA, Vo+1V ≤ VIN ≤ 8V
Output Voltage Temp. Coefficient
IL=100mA
IL=750mA
IL=1.5A
IL=3A
Quiescent Current (Note 6)
IL=100mA
IL=750mA
IL=1.5A
IL=3A
Reference Voltage Temp. Coefficient
Adjust Pin Bias Current Temp. Coefficient
Enable Input (TS39301/2/3/4)
TS39300/1/2/3/4
3A Ultra Low Dropout Voltage Regulator
with Multi-Function
3/12 Version: A07
Electrical Characteristics (Continue)
Flag Output (TS39301)
Output Low Voltage (Note 9)
VIN=0.9 * V
OUT
, IOL=250uA
Thermal Resistance
Junction to Case
Note 1. Exceeding the absolute maximum ratings may be damaged 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
D(max)
= (T
J(max)
- Ta) + ӨJA, where ӨJA depends upon the printed circuit layout. See ”Applications Information”.
Note 5. Output voltage temperature coefficient is ΔV
OUT (worst case)
+(T
J(max)
– T
J(MIN)
) where T
J(max)
is +125oC and T
JMIN)
is
-40oC.
Note 6. V
DROP
= VIN - V
OUT
when V
OUT
decreases to 99% of its nominal output voltage with VIN = V
OUT
+ 1. For output
voltages below 2.5V, dropout voltage is the input-to-output voltage differential with the minimum input voltage
being 2.5V. Minimum input operating voltage is 2.5V
Note 7. I
GND
is the quiescent current. IIN = I
GND
+ I
OUT
Note 8. VEN <0.8V, VIN <8V and V
OUT
=0
Note 9. For 1.8V device, VIN = 2.25V (device is in dropout)
TTL/COMS compatible input. Logic high is enable; logic low or open is shutdown
Unregulated input: +16V maximum supply
Ground: Ground pin and TAB / heat sink are internally connected.
Error Flag (output): Open-collector output. Active low indicates an output fault condition,
if no used, leave open.
Adjustment input: Feedback input. Connect to resistive voltage-divider network.
Sense pin is the input to the error amplifier
TS39300/1/2/3/4
3A Ultra Low Dropout Voltage Regulator
with Multi-Function
4/12 Version: A07
Functional Diagram
TS39300 Fixed Regulator Block Diagram
TS39301/3/4 Fixed Regulator with Flag, Sense and Enable Block Diagram
TS39302 Adjustable Regulator Block Diagram