CAT6219-125TDGT3 ON Semiconductor, CAT6219-125TDGT3 Datasheet - Page 2

• Manufacturer Part Number: CAT6219-125TDGT3
• Description: IC REG LDO 500MA 1.25V TSOT-23-5
• Manufacturer: ON Semiconductor

Specifications of CAT6219-125TDGT3

• Regulator Topology: Positive Fixed
• Voltage - Output: 1.25V
• Voltage - Input: 2.3 ~ 5.5 V
• Voltage - Dropout (typical): 0.3V @ 500mA
• Number Of Regulators: 1
• Current - Output: 500mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-5, TSOT-5, TSOP-5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -

Pin Function
VIN is the supply pin for the LDO. A small 1 mF ceramic
bypass capacitor is required between the V
near the device. When using longer connections to the power
supply, C
operating input voltage range is from 2.3 V to 5.5 V.
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
NOTE:
1. The maximum allowable power dissipation at any T
2. The device is not guaranteed to work outside its operating rating.
Table 1. PIN DESCRIPTIONS
Table 2. ABSOLUTE MAXIMUM RATINGS
Table 3. RECOMMENDED OPERATING CONDITIONS
V
V
Junction Temperature, T
Power Dissipation, P
Storage Temperature Range, T
Lead Temperature (soldering, 5 sec.)
ESD Rating (Human Body Model)
V
V
Junction Temperature Range, T
Package Thermal Resistance, θ
Package Thermal Resistance, θ
power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
IN
EN
IN
EN
Name
VOUT
GND
BYP
ADJ
TAB
VIN
EN
to 5.5 V
OFF
, V
V
2.3 V
IN
OUT
Typical application circuit with external components is shown above.
Figure 1. Typical Application Circuit
IN
ON
value can be increased without limit. The
Supply voltage input.
Ground reference.
Enable input (active high); a 2.5 MW pull−down
resistor is provided.
Optional bypass capacitor connection for noise
reduction and PSRR enhancing.
Adjustable input. Feedback pin connected to
resistor divider.
LDO Output Voltage.
To be connected to the ground plane on PCB
C
1 mF
IN
D
VIN
EN
J
CAT6219
Parameter
Parameter
GND
S
VOUT
J
JA
JA
BYP
Function
SOT23−5
TDFN−6
C
IN
2.2 mF
C
10 nF
BYP
pin and ground
OUT
V
(Optional)
A
OUT
(ambient temperature) is P
http://onsemi.com
(Note 2)
2
V
OUT
EN is the enable control logic (active high) for the regulator
output. It has a 2.5 MW pull−down resistor, which assures
that if EN pin is left open, the circuit is disabled.
VOUT is the LDO regulator output. A small 2.2 mF ceramic
bypass capacitor is required between the VOUT pin and
ground. For better transient response, its value can be
increased to 4.7 mF.
SOT23-5 package, a continuous 500 mA output current may
turn-on the thermal protection. A 250 W internal shutdown
switch discharges the output capacitor in the no-load
condition.
GND is the ground reference for the LDO. The pin must be
connected to the ground plane on the PCB.
BYP is the reference bypass pin. An optional 0.01 mF
capacitor can be connected between BYP pin and GND to
reduce the output noise and enhance the PSRR at high
frequency.
ADJ is the adjustable input pin for the adjustable LDO. The
pin is connected to the resistor voltage divider.
The capacitor should be located near the device. For the
+ 1.24 V 1 )
OFF ON
V
Internally Limited (Note 1)
2.3 V
to 5.5 V
IN
Dmax
−0.3 to V
−65 to +150
−40 to +125
= (T
2.3 to 5.5
Figure 2. Adjustable Output LDO
0 to V
0 to 6.5
Rating
Range
+150
260
235
206
Jmax
1 mF
C
3
R
R
IN
IN
1
2
IN
− T
+ 0.3
A
EN
VIN
)/q
CAT6219
JA
GND
. Exceeding the maximum allowable
VOUT
ADJ
C
2.2 mF
OUT
_C/W
Unit
Unit
mW
_C
_C
_C
_C
kV
V
V
V
V
R
R
1
2
V
OUT