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CAT6219-250TDGT3

P1-P3P4-P6P7-P9P10-P11
© Semiconductor Components Industries, LLC, 2012
September, 2012 − Rev. 14
1 Publication Order Number:
CAT6219/D
CAT6219
500 mA CMOS LDO
Regulator
Description
The CAT6219 is a 500 mA CMOS low dropout regulator that
provides fast response time during load current and line voltage
changes.
The quick-start feature allows the use of an external bypass
capacitor to reduce the overall output noise without affecting the
turn-on time of just 150 ms.
With zero shutdown current and low ground current of 55 mA
typical, the CAT6219 is ideal for battery-operated devices with supply
voltages from 2.3 V to 5.5 V. An internal under voltage lockout circuit
disables the output at supply voltages under 2.15 V typical.
The CAT6219 offers 1% initial accuracy and low dropout voltage,
300 mV typical at 500 mA. Stable operation is provided with a small
value ceramic capacitor, reducing required board space and
component cost.
Other features include current limit and thermal protection.
The LDO is available in fixed and adjustable output in the low
profile (1 mm max height) 5−lead TSOT23, 6−pad 1.5 mm x 1.5 mm
WDFN and in the 6−pad 2 mm x 2 mm TDFN packages.
Features
• Guaranteed 500 mA Peak Output Current
• Low Dropout Voltage of 300 mV Typical at 500 mA
• Stable with Ceramic Output Capacitor
• External 10 nF Bypass Capacitor for Low Noise
• Quick−start Feature
• Under Voltage Lockout
• No−load Ground Current of 55 mA Typical
• Full−load Ground Current of 85 mA Typical
• ±1.0% Initial Accuracy (V
OUT
≥ 2.0 V)
• ±2.0% Accuracy Over Temperature (V
OUT
≥ 2.0 V)
• “Zero” Current Shutdown Mode
• Fold−back Current Limit
• Thermal Protection
• 5−lead TSOT−23, 6−pad WDFN and TDFN Packages
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
• Cellular Phones
• Battery−powered Devices
• Consumer Electronics
http://onsemi.com
TSOT−23
TD SUFFIX
CASE 419AE
PIN CONNECTIONS
RVYM
MARKING DIAGRAMS
1
5
VOUT
BYP/ADJ
VIN
GND
EN
1
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
ORDERING INFORMATION
TDFN−6
VP5 SUFFIX
CASE 511AH
1
ABYM
1
VOUT
BYP/ADJ
NC
VIN
GND
EN
TAB
(Top Views)
AB = CAT6219180, CAT6219VP5 Device Code
Y = Production Year (last digit)
M = Production Month: 1 − 9, A, B, C
US= CAT6219−125, CAT6219−250,
= CAT6219−300 Device Code
RV= CAT6219−180, CAT6219−280,
= CAT6219−285, CAT6219−330 Device Code
UM = CAT6219−ADJ Device Code
Y = Production Year (last digit)
M = Production Month: 1 − 9, A, B, C
USYM UMYM
WDFN−6
MV2 SUFFIX
CASE 511BJ
1
OUT
NC/ADJ
GND
EN
NC
IN
1
TSOT−23
WDFN−6
TDFN−6
T = CAT6219−285MV2 Device Code
S = CAT6219−280MV2 Device Code
U = CAT6219−330MV2 Device Code
V = CAT6219−ADJMV2 Device Code
M = Date Code
TM SM
(WDFN)
(TDFN)
UM VM
CAT6219
http://onsemi.com
2
Figure 1. Typical Application Circuit
VIN
BYPEN
VOUT
GND
OFF
ON
1 mF
2.3 V
to 5.5 V
2.2 mF
10 nF
CAT6219
Figure 2. Adjustable Output LDO
C
IN
V
IN
V
OUT
C
OUT
C
BYP
(Optional)
VIN
CAT6219
ADJEN
VOUT
GND
OFF
ON
1 mF
2.3 V
to 5.5 V
2.2 mF
R
1
R
2
C
OUT
V
OUT
V
IN
C
IN
V
OUT
+ 1.24 V
ǒ
1 )
R
1
R
2
Ǔ
Table 1. PIN DESCRIPTIONS
Name Function
VIN Supply voltage input.
GND Ground reference.
EN
Enable input (active high); a 2.5 MW pull−down
resistor is provided.
BYP Optional bypass capacitor connection for noise
reduction and PSRR enhancing.
ADJ Adjustable input. Feedback pin connected to
resistor divider.
VOUT LDO Output Voltage.
TAB To be connected to the ground plane on PCB
Pin Function
VIN is the supply pin for the LDO. A small 1 mF ceramic
bypass capacitor is required between the V
IN
pin and ground
near the device. When using longer connections to the power
supply, C
IN
value can be increased without limit. The
operating input voltage range is from 2.3 V to 5.5 V.
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.
The capacitor should be located near the device. For the
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.
Table 2. ABSOLUTE MAXIMUM RATINGS
Parameter Rating Unit
V
IN
0 to 6.5 V
V
EN
, V
OUT
−0.3 to V
IN
+ 0.3 V
Junction Temperature, T
J
+150
_C
Power Dissipation, P
D
Internally Limited (Note 1) mW
Storage Temperature Range, T
S
−65 to +150
_C
Lead Temperature (soldering, 5 sec.) 260
_C
ESD Rating (Human Body Model) 3 kV
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.
Table 3. RECOMMENDED OPERATING CONDITIONS (Note 2)
Parameter Range Unit
V
IN
2.3 to 5.5 V
V
EN
0 to V
IN
V
Junction Temperature Range, T
J
−40 to +125
_C
Package Thermal Resistance, θ
JA
SOT23−5
Package Thermal Resistance, θ
JA
TDFN−6
235
206
_C/W
NOTE: Typical application circuit with external components is shown above.
1. The maximum allowable power dissipation at any T
A
(ambient temperature) is P
Dmax
= (T
Jmax
− T
A
)/q
JA
. Exceeding the maximum allowable
power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
2. The device is not guaranteed to work outside its operating rating.
CAT6219
http://onsemi.com
3
Table 4. ELECTRICAL OPERATING CHARACTERISTICS (Note 3)
(V
IN
= V
OUT
+ 1.0 V, V
EN
= High, I
OUT
= 100 mA, C
IN
= 1 mF, C
OUT
= 2.2 mF, ambient temperature of 25°C (over recommended operating
conditions unless specified otherwise). Bold numbers apply for the entire junction temperature range.)
Symbol
Parameter Conditions Min Typ Max Unit
V
OUT−ACC
Output Voltage Accuracy Initial accuracy for V
OUT
≥ 2.0 V
(Note 6)
−1.0 +1.0
%
−2.0 +2.0
TC
OUT
Output Voltage Temp. Coefficient 40 ppm/°C
V
R−LINE
Line Regulation V
IN
= V
OUT
+ 1.0 V to 5.5 V
−0.2 ±0.1 +0.2
%/V
−0.4 +0.4
V
R−LOAD
Load Regulation
I
OUT
= 100 mA to 500 mA 1 1.5
%
2
V
DROP
Dropout Voltage (Note 4) I
OUT
= 500 mA
300 400
mV
500
I
GND
Ground Current
I
OUT
= 0 mA 55 75 mA
90
I
OUT
= 500 mA 85
I
GND−SD
Shutdown Ground Current V
EN
< 0.4 V
1 mA
2
PSRR Power Supply Rejection Ratio
f = 1 kHz, C
BYP
= 10 nF 64
dB
f = 20 kHz, C
BYP
= 10 nF 54
I
SC
Output short circuit current limit V
OUT
= 0 V 200 mA
T
ON
Turn−On Time C
BYP
= 10 nF 150
ms
e
N
Output Noise Voltage (Note 5) BW = 10 Hz to 100 kHz 45
mVrms
R
OUT−SH
Shutdown Switch Resistance 250
W
R
EN
Enable pull−down resistor 2.5
MW
V
UVLO
Under voltage lockout threshold 2.15 V
ESR C
OUT
equivalent series resistance 5 500
mW
V
ADJ
Adjustable input voltage
I
OUT
= 100 mA
1.2 1.24 1.27 V
ENABLE INPUT
V
HI
Logic High Level
V
IN
= 2.3 to 5.5 V 1.8
V
V
IN
= 2.3 to 5.5 V, 0°C to +125°C
junction temperature
1.6
V
LO
Logic Low Level V
IN
= 2.3 to 5.5 V 0.4 V
I
EN
Enable Input Current
V
EN
= 0.4 V 0.15 1 mA
V
EN
= V
IN
1.5 4
THERMAL PROTECTION
T
SD
Thermal Shutdown 160 °C
T
HYS
Thermal Hysteresis 10 °C
3. Specification for 2.80 V output version unless specified otherwise.
4. Dropout voltage is defined as the input−to−output differential at which the output voltage drops 2% below its nominal value. During test, the
input voltage stays always above the minimum 2.3 V.
5. Specification for 1.8 V output version.
6. For V
OUT
< 2.0 V, the initial accuracy is ±2% and across temperature ±3%.
P1-P3P4-P6P7-P9P10-P11

CAT6219-250TDGT3

Mfr. #:
Buy CAT6219-250TDGT3
Manufacturer:
ON Semiconductor
Description:
LDO Voltage Regulators LDO X V 500mA
Lifecycle:
New from this manufacturer.
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