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DATA SHEET www.onsemi.com
LDO Regulator - Low IGND, CMOS with/without Enable and with Enhanced
500 mA
NCP605, NCP606
The NCP605/NCP606 provide in excess of 500 mA of output current at fixed voltage options or an adjustable output voltage from 5.0 V down to 1.25 V. These devices are designed for space constrained and portable battery powered applications and offer additional features such as high PSRR, low noise operation, short circuit and thermal protection. The devices are designed to be used with low cost ceramic capacitors and are packaged in the DFN6 3x3.3. NCP605 is designed without enable pin, NCP606 is designed with enable pin.
Features
• Output Voltage Options:
Adjustable, 1.5 V, 1.8 V, 2.5 V, 2.8 V, 3.0 V, 3.3 V, 5.0 V
• Adjustable Output by External Resistors from 5.0 V down to 1.25 V • Current Limit 675 mA • Low IGND (Independent of Load) • $1.5% Output Voltage Tolerance Over All Operating Conditions
(Adjustable)
• $2% Output Voltage Tolerance Over All Operating Conditions
(Fixed)
• NCP605 Fixed is Direct Replacement LP8345 • Typical Noise Voltage of 50 mVrms without a Bypass Capacitor • Enhanced ESD Ratings: 4 kV Human Body Mode (HBM)
200 V Machine Model (MM)
• These are Pb−Free Devices
Typical Applications
• Hard Disk Drivers • Notebook Computers • Battery Power Electronics • Portable Instrumentation
1
DFN6, 3x3.3 MN SUFFIX CASE 506AX
MARKING DIAGRAM
xxxx zzz AYWWG
G
xxxx zzz
A Y WW G
= P605 or P606 = ADJ, 150, 180, 250, 280,
300, 330, 500 = Assembly Location = Year = Work Week = Pb−Free Package
(Note: Microdot may be in either location)
NCP605 PIN CONNECTIONS DFN6 3x3.3mm
Vin 1
6 Vin
GND 2 GND 5 SENSE/ADJ
NC 3
4 Vout
(TOP VIEW)
NCP606 PIN CONNECTIONS DFN6 3x3.3mm
Vin 1 GND 2
GND
6 Vin 5 SENSE/ADJ
EN 3
4 Vout
(TOP VIEW)
ORDERING INFORMATION
See detailed ordering and shipping information in the package dimensions section on page 12 of this data sheet.
Vin Cin
Vin
Vout
NCP605
(Fixed)
SENSE GND
Vout Cout
Figure 1. NCP605 Typical Application Circuit for Fixed Version (1.5 V, 1.8 V, 2.5 V, 2.8 V, 3.0 V, 3.3 V, 5.0 V)
© Semiconductor Components Industries, LLC, 2013
1
May, 2022 − Rev. 4
Publication Order Number: NCP605/D
Vin Cin
NCP605, NCP606
Vin
Vout
NCP606
(Fixed)
EN
SENSE
GND
Vout Cout
Figure 2. NCP606 Typical Application Circuit for Fixed Version (1.5 V, 1.8 V, 2.5 V, 2.8 V, 3.0 V, 3.3 V, 5.0 V)
Vin Cin
Vin
Vout
NCP605
(Adjustable)
ADJ GND
Vout Vin
R1 Cout
Cin
R2
Vin
Vout
NCP606
(Adjustable)
EN
ADJ
GND
Vout
R1
Cout
R2
Figure 3. NCP605 Typical Application Circuit for Adjustable Version (1.25 V < Vout v 5.0 V)
Figure 4. NCP606 Typical Application Circuit for Adjustable Version (1.25 V < Vout v 5.0 V)
Vin Cin
Vin
Vout
NCP605
(Adjustable)
ADJ GND
Vout Vin
Cout
Cin
Vin
Vout
NCP606
(Adjustable)
EN
ADJ
GND
Vout Cout
Figure 5. NCP605 Typical Application Circuit for Adjustable Version (Vout = 1.25 V)
Figure 6. NCP606 Typical Application Circuit for Adjustable Version (Vout = 1.25 V)
Vin
Driver with Current Limit
Adjustable Version Only
+ −
Thermal Shutdown
Vref
GND
Fixed Version Only
Vout
Vin
SENSE/ADJ
EN GND
Driver with Current Limit
Adjustable Version Only
+ −
Thermal Shutdown
Vref
Fixed Version Only
Vout SENSE/ADJ
Figure 7. NCP605 Simplified Block Diagram
Figure 8. NCP606 Simplified Block Diagram
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NCP605, NCP606
PIN FUNCTION DESCRIPTION
Pin No.
Pin Name
Description
1
Vin
Positive Power Supply Input*
2
GND
Power Supply Ground
3
NC/EN
NCP605: This Pin is Not Connected
NCP606: This Pin is Enable Input, Active HIGH
4
Vout
Regulated Output Voltage
5
SENSE/ADJ Output Voltage Sense Input
Fixed Version: Connect Directly to Output Capacitor
Adjustable Version: Connect to Middle Point of External Resistor Divider
6
Vin
Positive Power Supply Input*
EPAD
GND
Exposed Pad is Connected to Ground
*Pins 1 and 6 must be connected together externally for output current full range operation
ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Input Voltage Range (Note 1)
Chip Enable Voltage Range (NCP606 only)
Output Voltage Range
Output Voltage/Sense Input Range, SENSE/ADJ
ESD Capability
Human Body Model Machine Model
Vin
−0.3 to 6.5
V
VEN
−0.3 to 6.5
V
Vout
−0.3 to 6.5
V
VADJ
−0.3 to 6.5
V
ESD
4000
V
200
Maximum Junction Temperature
TJ(MAX)
150
°C
Storage Temperature Range
TSTG
−65 to 150
°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.
NOTE: This device series contains ESD Protection and exceeds the following tests: ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114) ESD Machine Model tested per AEC− 150 mA per JEDEC standard: JESD78Q100−003 (EIA/JESD22−A115) Latchup Current Maximum Rating: v 150 .