NCP102 PDF даташит
Спецификация NCP102 изготовлена «ON Semiconductor» и имеет функцию, называемую «Low Dropout Linear Regulator Controller». |
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Детали детали
Номер произв | NCP102 |
Описание | Low Dropout Linear Regulator Controller |
Производители | ON Semiconductor |
логотип |
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NCP102
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Low Dropout Linear
Regulator Controller
The NCP102 is a low dropout linear regulator controller for
applications requiring high-current and ultra low dropout voltages.
The use of an external N-Channel MOSFET allows the user to adapt
the device to a multitude of applications depending on system
requirements for current and dropout voltage.
An extremely accurate 0.8 V (±2%) reference allows the
implementation of sub 1 V voltage supplies. The reference is
guaranteed over the complete supply and temperature ranges.
Other features of the NCP102 are a dedicated enable input,
internally compensated error amplifier and an adjustable soft-start. A
minimum drive capability of ±5 mA provides fast transient response.
The drive current is internally limited to protect the controller in case
of an external MOSFET failure. The NCP102 is packaged in a space
saving TSOP-6.
Features
•ă4.5 V to 13.5 V Supply Voltage Range
•ă0.8 V (±2%) Voltage Reference (Temperature and Process)
•ăProgrammable Regulator Output Voltage Down to 0.8 V
•ăDrive Current Capability of > ±5ĂmA
•ăMLCC and POSCAP Compatible
•ăProgrammable Soft-Start
•ăEnable Active High
•ăSpace Saving TSOP-6 Package
•ăRoHS Compliant Pb-Free Package
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MARKING
DIAGRAM
TSOP-6
6
(SOT23-6)
102AYW G
SN SUFFIX
G
1
CASE 318G
1
102 = Device Code
A = Assembly Location
Y = Year
W = Work Week
G = Pb-Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
EN 1
GND 2
6 VCC
5 DRV
FB 3
4 SOFT-S
Applications
•ăDesktop and Laptops
•ăComputer Peripherals such as Graphics Cards
•ăSub 1 V Power Supplies
CHIP
ENABLE 1
2
3
EN
GND
FB
U1
NCP102
VCC
DRV
SOFT-S
VCC
6
CCC
5
RG
4
CSOFT-S
CFB
Vin
X1
R1
(Top View)
ORDERING INFORMATION
Device
Package
Shipping†
NCP102SNT1G TSOP-6 3000/Tape & Reel
(Pb-Free)
Cin
VOUT
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
COUT1
COUT2
Figure 1. Typical Application
R2
©Ă Semiconductor Components Industries, LLC, 2008
January, 2008 - Rev. 1
1
Publication Order Number:
NCP102/D
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NCP102
EN
SOFT-S
VCC
IEN
9.75 V
VCC
ISOFT-S
UVLO
+
-
0.8 V
15 V
VCC
GND
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0.8 V
+
FB 9.75 V
-
9.75 V
DRV
Figure 2. Representative Block Diagram
PIN FUNCTION DESCRIPTION
Pin Symbol Name
Description
1 EN Enable Input (Active High). Pull the EN pin below 0.8 V to disable the regulator and enter the standby
mode operation.
2
GND
Ground
3 FB Inverting input of the error amplifier. The output voltage is sampled by means of a resistor divider and ap‐
plied to this pin for regulation.
4
SOFT-S
Programmable soft-start. An internal current source charges the capacitor connected to this pin. The soft-
start period ends once the voltage of the soft-start capacitor reaches 0.8 V.
5
DRV
Gate drive for external N-Channel MOSFET. It is also the buffered output of the error amplifier.
6 VCC Power supply voltage input. Operating voltage range is from 4.5 to 13.5 V. A decoupling capacitor to GND
should be used. A minimum of 0.1 mF is recommended.
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NCP102
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MAXIMUM RATINGS (TA = 25°C, unless otherwise noted)
Rating
Symbol
Value
Unit
Main Supply Input Voltage
Main Supply Input Current
Enable Voltage
Enable Current
Soft-Start Voltage
Soft-Start Current
Drive Voltage
Drive Current
Feedback Voltage
Feedback Current
Thermal Resistance, Junction-to-Ambient
ą(0.36 sq in Printed Circuit Copper Clad)
ą(1.0 sq in Printed Circuit Copper Clad)
VCC
ICC
VEN
IEN
VSOFT-S
ISOFT-S
VDRV
IDRV
VFB
IFB
RqJA
-0.3 to 15
100
-0.3 to 9.75
100
-0.3 to 9.75
100
-0.3 to 9.75
100
-0.3 to 9.75
100
230
200
V
mA
V
mA
V
mA
V
mA
V
mA
°C/W
Power Dissipation (TA = 25°C, 2 oz Cu, 0.36 sq in Printed Circuit Copper Clad)
PD
0.4 W
Storage Temperature Range
Tstg
-65 to 150
°C
Operating Junction Temperature Range
TJ
-40 to 125
°C
Reflow Temperature 10 seconds
Treflow
260 °C
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.
1. This device series contains ESD protection and exceeds the following tests:
Human Body Model (HBM) ±2.0 kV per JEDEC standard: JESD22-A114
Machine Model (MM) ±200 V per JEDEC standard: JESD22-A115
2. Latch-up current maximum rating: ±100 mA per JEDEC standard: JESD78.
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