Document
NCP706A
1 A, 1% Precision Very Low Dropout Voltage Regulator with Enable and Active Discharge
The NCP706A is a Very Low Dropout Regulator which provides up to 1 A of load current and maintains excellent output voltage accuracy of 1% including line, load and temperature variations. The operating input voltage range from 2.4 V up to 5.5 V makes this device suitable for Li−ion battery powered products as well as post−regulation applications. The product is available in 3.0 V fixed output voltage option. NCP706A is fully protected against overheating and output short circuit.
Very small 8−pin XDFN8 1.6 x 1.2, 04P package makes the device especially suitable for space constrained portable applications such as tablets and smartphones. Parts feature active output discharge function.
Features
• Operating Input Voltage Range: 2.4 V to 5.5 V • Fixed Output Voltage Option: 3.0 V
Other Output Voltage Options Available on Request.
• Low Quiescent Current of Typ. 200 mA • Very Low Dropout: 155 mV Max. at IOUT = 1 A • ±1% Accuracy Over Load/Line/Temperature • High PSRR: 60 dB at 1 kHz • Internal Soft−Start to Limit the Inrush Current • Thermal Shutdown and Current Limit Protections • Stable with a 1.0 mF Ceramic Output Capacitor • Available in XDFN8 1.6 x 1.2, 04P 8−pin Package • Active Output Discharge • These are Pb−Free Devices
Typical Applications
• Tablets, Smartphones, • Wireless Handsets, Portable Media Players • Portable Medical Equipment • Other Battery Powered Applications
VIN = 2.4 (3.3) − 5.5 V
IN
OUT
CIN
NCP706A EN SNS
ON OFF
GND
VOUT = 3.0 V @ 1 A
COUT 1.0 mF Ceramic
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XDFN8 CASE 711AS
MARKING DIAGRAM
AEMG G
AE = Specific Device Code M = Date Code G = Pb−Free Package
(Note: Microdot may be in either location)
PIN CONNECTION
OUT 1
8 IN
OUT 2
7 IN
N/C 3
6 EN
SNS 4
5 GND
(Top View)
IN 8
1 OUT
IN 7
2 OUT
EN 6
3 N/C
GND 5
4 SNS
(Bottom View)
ORDERING INFORMATION
See detailed ordering, marking and shipping information on page 8 of this data sheet.
Figure 1. Typical Application Schematic
© Semiconductor Components Industries, LLC, 2016
May, 2016 − Rev. 1
1
Publication Order Number: NCP706A/D
NCP706A
Figure 2. Simplified Internal Schematic Block Diagram
PIN FUNCTION DESCRIPTION
Pin No. XDFN8
Pin Name
Description
1
OUT
Regulated output voltage. A minimum 1.0 mF ceramic capacitor is needed from this pin to ground to
assure stability. 2 OUT
3 N/C Not connected. This pin can be tied to ground to improve thermal dissipation.
4
SNS
Remote sense connection. This pin should be connected to the output voltage rail.
5
GND
Power supply ground.
6 EN Enable pin. Driving EN over 0.9 V turns on the regulator. Driving EN below 0.4 V puts the regulator into shutdown mode.
7 IN Input pin. A small capacitor is needed from this pin to ground to assure stability.
8 IN
−
Exposed
This pad enhances thermal performance and is electrically connected to GND. It is recommended
Pad that the exposed pad is connected to the ground plane on the board or otherwise left open.
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NCP706A
ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Input Voltage (Note 1)
VIN
−0.3 V to 6 V
V
Output Voltage
VOUT
−0.3 V to VIN + 0.3 V
V
Enable Input
VEN
−0.3 V to VIN + 0.3 V
V
Output Short Circuit Duration
tSC
Indefinite
s
Maximum Junction Temperature
TJ(MAX)
150
°C
Storage Temperature
TSTG
−55 to 150
°C
ESD Capability, Human Body Model (Note 2)
ESDHBM
2000
V
ESD Capability, Machine Model (Note 2)
ESDMM
200
V
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 Area. 2. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per EIA/JESD22−A114 ESD Machine Model tested per EIA/JESD22−A115 Latch−up Current Maximum Rating tested per JEDEC standard: JESD78
THERMAL CHARACTERISTICS
Rating
Thermal Characteristics, XDFN8 1.6x1.2, 04P Thermal Resistance, Junction−to−Air
Symbol RqJA
Value 160
Unit °C/W
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NCP706A
ELECTRICAL CHARACTERISTICS − VOLTAGE VERSION 3.0 V −40°C ≤ TJ ≤ 125°C; VIN = VOUT(NOM) + 0.3 V or 3.3 V, whichever is greater; IOUT = 10 mA, CIN = COUT = 1.0 mF, VEN = 0.9 V, unless otherwise noted. Typical values are at TJ = +25°C. (Note 3)
Parameter
Test Conditions
Symbol Min Typ Max Unit
Operating Input Voltage Undervoltage lock−out Output Voltage Accuracy Line Regulation Load Regulation Load Transient
Dropout voltage (Note 4) Output Current Limit Quiescent current Ground current Shutdown current EN Pin High Threshold EN Pin Low Threshold EN Pin Input Current Turn−on Time
Power Supply Rejection Ratio
Output Noise Voltage
V.