Product Overview

Product Overview
NCP4681: Linear Voltage Regulator, LDO, Ultra Low Iq, 150 mA
For complete documentation, see the data sheet
Product Description
The NCP4681 and NCP4684 are CMOS Linear voltage regulators with 150 mA output current capability and ultra low supply
currents (1 uA typ.) The devices are easy to use and include output current protection and a fully integrated soft-start circuit to
minimize inrush current and to ensure no output voltage overshoot. The NCP4681 includes an ENABLE function to reduce supply
current by using a Standby mode, while the NCP4684 excludes the ENABLE pin to avoid the associated pull down current, thereby
offering the lowest possible current consumption for battery powered applications in ACTIVE mode. The devices are available in the
ultra small 0.8x0.8mm XDFN as well as the SC-70 and SOT23-5 packages.
Features
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Benefits
Ultra Low Supply current : 1 uA typical
Input voltage range 1.4 V to 5.25 V
Enable pin to place device in STANDBY mode (NCP4581)
Output voltage range: 0.8 V to 3.6 V in 100 mV increments
Tiny 0.8 mm x 0.8 mm x 0.4 mm xDFN package
Soft start
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Applications
Extend the life of battery powered products
Extends the useful life of a battery
Reduces Iq to 0.1 uA to minimise power dissipation
Suitable for powering low voltage controllers
Convenient alternative to CSP packaging
Reduces inrush current and output overshoot
End Products
• Battery powered boards
• Keyboards, touchscreens, LCD screens
• Cellphones, Digital Cameras, GPS,
Part Electrical Specifications
Product
Compliance
Status
Output
Polarity
VO (V)
IO Typ
(A)
VI Max
(V)
VDO Typ
(V)
Iq Typ
(mA)
PSRR
(dB)
Noise
(µVrms)
Package
Type
NCP4681DMX29TCG
Pb-free
Active
Single
Positive
2.9
0.15
6
0.28
0.001
25
100
XDFN-4
Active
Single
Positive
3.3
0.15
6
0.28
0.001
25
100
XDFN-4
Active
Single
Positive
3.5
0.15
6
0.28
0.001
25
100
XDFN-4
Active
Single
Positive
1.5
0.15
6
0.28
0.001
25
100
SC-88A5 / SC70-5 /
SOT323-5
Active
Single
Positive
2.5
0.15
6
0.28
0.001
25
100
SC-88A5 / SC70-5 /
SOT323-5
Active
Single
Positive
2.8
0.15
6
0.28
0.001
25
100
SC-88A5 / SC70-5 /
SOT323-5
Active
Single
Positive
3.3
0.15
6
0.28
0.001
25
100
SC-88A5 / SC70-5 /
SOT323-5
Active
Single
Positive
3.5
0.15
6
0.28
0.001
25
100
XDFN-4
Halide free
NCP4681DMX33TCG
Pb-free
Halide free
NCP4681DMX35TCG
Pb-free
Halide free
NCP4681DSQ15T1G
Pb-free
Halide free
NCP4681DSQ25T1G
Pb-free
Halide free
NCP4681DSQ28T1G
Pb-free
Halide free
NCP4681DSQ33T1G
Pb-free
Halide free
NCP4681HMX35TCG
Pb-free
Halide free
For more information please contact your local sales support at www.onsemi.com
Created on: 6/30/2016