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CAT6243-ADJMT5T3

P1-P3P4-P6P7-P9P10-P12P13-P15
© Semiconductor Components Industries, LLC, 2016
March, 2016 − Rev. 10
1 Publication Order Number:
CAT6243/D
CAT6243
1 Amp Adjustable CMOS
LDO Voltage Regulator
Description
The CAT6243 is a low dropout CMOS voltage regulator providing
up to 1000 mA of output current with fast response to load current and
line voltage changes. CAT6243 offers a user adjustable output voltage
from 0.8 V to 5.0 V and its low quiescent current make CAT6243 ideal
for energy conscious designs. CAT6243 is available in a DPAK−5
5−lead packages and in a space saving 3 mm x 3 mm WDFN−6
package with a power pad for heat sinking to the PCB.
Features
• Guaranteed 1000 mA Continuous Output Current
• V
OUT
: 0.8 V to 5.0 V
• Dropout Voltage of 350 mV Typical at 1000 mA
• ±2.0% Output Voltage Accuracy at Room Temperature
• No−load Ground Current of 70 mA Typical
• Full−load Ground Current of 140 mA Typical
• “Zero” Current Shutdown Mode
• Under Voltage Lockout
• Stable with Ceramic Output Capacitors
• Current Limit and Thermal Protection
• 4 and 5 Lead DPAK−5 and 3 mm x 3 mm WDFN−6 Power Packages
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
• DSP Core and I/O Voltages
• FPGAs, ASICs
• PDAs, Mobile Phones, GPS
• Camcorders and Cameras
• Hard Disk Drives
MARKING DIAGRAMS
6243 = Specific Device Code
A = Assembly Location
XXX = Last Three Digits of
= Assembly Lot Number
Y = Production Year
WW = Production Week (Two Digits)
G = Pb−Free Package
6243
AXXX
YWW
G
1
*Pb−Free indicator, “G” or microdot “G”,
may or may not be present.
x = P (CAT)
6243 = Device Code
y = Output Voltage
= W = Adjustable
G = Pb−Free Package
A = Assembly Location
L = Wafer Lot
Y = Year
WW = Work Week
x6243yG
ALYWW
www.onsemi.com
WDFN−6
3 x 3 mm
CASE 511AP
PIN CONNECTIONS
(Top Views)
VIN
VOUT
EN
GND
BYP
1
ADJ
See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
ORDERING INFORMATION
DPAK−5
TO−252
CASE 369AE
ADJ
VOUT
GND
VIN
EN
15
GND
(Tab)
CAT6243
www.onsemi.com
2
Figure 1. Application Schematic
VIN
ENABLE
CAT6243
ADJBYP
VOUT
GND
VIN
1 mF
VOUT
(Optional)
C
BYP
C
IN
2.2 mF
C
OUT
Figure 2. Simplified Block Diagram
ADJ
GND
EN
2.5 M
VIN
BYP
VOUT
Enable
Logic
Thermal
Shutdown
I
SENSE
V
REF
+
−
+
−
Table 1. PIN FUNCTION DESCRIPTION
Pin #
WDFN−6
Pin #
DPAK−5−5
Pin Name Description
1 5 EN The Enable Input. An active HIGH input, turning ON the LDO. This input should be tied to
V
IN
if the LDO is not intended to be shut off during normal operation. A pull−down 2.5 MW
resistor maintains the circuit in the OFF state if the pin is left open.
2, PAD 3, TAB GND Power Supply Ground; Device Substrate. The center pad is internally connected to Ground
and as such can cause short circuits to signal traces running beneath the IC. This pad is
intended for heat sinking the IC to the PCB and is typically connected to the PCB ground
plane.
3 NC BYP Bypass input. Placing a capacitor of 100 pF to 470 pF between BYP and ground reduces
noise on V
OUT.
This capacitor is optional and it increases the turn−on time.
4 2 V
OUT
Regulated Output Voltage. A protection block eliminates any current flow from output to
input if V
OUT
> V
IN
.
5 1 ADJ Output Voltage Adjust Input. This input ties to the common point of a resistor divider which
determines the regulator’s output voltage. See Applications section for details on selecting
resistor values.
6 4 V
IN
Positive Power Supply Input. Supplies power for V
OUT
as well as the regulator’s internal
circuitry.
CAT6243
www.onsemi.com
3
Table 2. ABSOLUTE MAXIMUM RATINGS
Rating Symbol Value Unit
Input Voltage Range (Note 1) V
IN
−0.3 to 6.0 V
Output Voltage Range V
OUT
−0.3 to 6.0 V
Enable Input Range EN −0.3 to 5.5 V or (V
IN
+ 0.3),
whichever is lower
V
Adjust Input Range ADJ −0.3 to 5.5 V V
Bypass Input Range BYP −0.3 to 5.5 V or (V
IN
+ 0.3),
whichever is lower
V
Power Dissipation
PD
Internally Limited mW
Maximum Junction Temperature T
J(max)
150 °C
Storage Temperature Range T
STG
−65 to 150 °C
ESD Capability, Human Body Model (Note 2) ESD
HBM
2 kV
ESD Capability, Machine Model (Note 2) ESD
MM
200 V
Lead Temperature Soldering
Reflow (SMD Styles Only), Pb−Free Versions (Note 3)
T
SLD
260 °C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Refer to ELECTRICAL CHARACTERISTIS and APPLICATION INFORMATION for Safe Operating range.
2. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114)
ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)
Latchup Current Maximum Rating: ≤150 mA per JEDEC standard: JESD78
3. For information, please refer to our Soldering and Mounting Techniques Reference Manual, SOLDERRM/D
Table 3. THERMAL CHARACTERISTICS
Rating Symbol Value Unit
Thermal Characteristics, WDFN6, 3x3 mm
Thermal Resistance, Junction−to−Air: 1 in
2
/1 oz. copper (Note 4)
Thermal Reference, Junction−to−Case (Note 4)
R
q
JA
R
y
JL
55
10
°C/W
Thermal Characteristics, DPAK−5
Thermal Resistance, Junction−to−Air: 1 in
2
/1 oz. copper (Note 4)
Thermal Reference, Junction−to−Tab (Note 4)
R
q
JA
R
y
JT
60
4.3
°C/W
4. Values based on copper area of 650 mm
2
(or 1 in
2
) of 1 oz copper thickness and FR4 PCB substrate.
Table 4. OPERATING RANGES (Note 5)
Rating Symbol Min Max Unit
Input Voltage (Note 6) CAT6243−ADJ
CAT6243DC
V
IN
1.8
1.8
5.0
5.5
V
Output Current I
OUT
0.1 1000 mA
Output Voltage V
OUT
0.8 5.0 V
Ambient Temperature T
A
−40 85 °C
5. Refer to ELECTRICAL CHARACTERISTIS and APPLICATION INFORMATION for Safe Operating range.
6. Minimum V
IN_MIN
= 1.8 V or (V
OUT
+ V
DO
), whichever is higher.
P1-P3P4-P6P7-P9P10-P12P13-P15

CAT6243-ADJMT5T3

Mfr. #:
Buy CAT6243-ADJMT5T3
Manufacturer:
ON Semiconductor
Description:
LDO Voltage Regulators 1A ADJ LDO VOLTAGE REG
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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