LINEAR REGULATOR. L1806 Datasheet

L1806 REGULATOR. Datasheet pdf. Equivalent

Part L1806
Description ULTRA LOW DROPOUT LINEAR REGULATOR
Feature UNISONIC TECHNOLOGIES CO., LTD L1806 3A, ULTRA LOW DROPOUT (0.23V@3A) LINEAR REGULATOR CMOS IC  D.
Manufacture UTC
Datasheet
Download L1806 Datasheet

UNISONIC TECHNOLOGIES CO., LTD L1806 3A, ULTRA LOW DROPOUT ( L1806 Datasheet
Recommendation Recommendation Datasheet L1806 Datasheet





L1806
UNISONIC TECHNOLOGIES CO., LTD
L1806
3A, ULTRA LOW DROPOUT
(0.23V@3A) LINEAR
REGULATOR
CMOS IC
DESCRIPTION
The UTC L1806 is a typical LDO with the features of very low
dropout voltage as low as 0.23V at output current 3A.
For normal operation, two supply voltages are necessary. One
called control voltage from other equipment can shutdown the
output voltage and it should pull and hold the voltage of EN pin less
than 0.5V. Another one is the main supply voltage whose purpose is
for main power conversion, to keep the power dissipation low, and
to make the dropout voltage lower.
Internally, in the UTC L1806, there’re many functions which
can be seen in the block figure to prevent the IC from being
damaged. Internal Power-On-Reset (POR) circuit can control the
two supply voltages to prevent fault operations of the circuit; the
thermal shutdown circuit is able to protect the device from over
thermal operation, and a current limit function will keep the device
work safely under current over-loads.
The UTC L1806 can be used as an ideal to provide well supply
voltage in the applications, such as front-side-bus termination on
motherboard, NB applications, front side bus VTT (1.2V/3A) and
note book PC applications.
FEATURES
* Low Dropout VD=0.23V(typ.)@ IOUT=3A
* Low ESR Output Capacitor
* VREF=0.8V
* Fast Transient Response
* Output Voltage Adjustable through External Resistors
* POR(Power-On-Reset) controlling VCNTL and VIN
* With internal Soft-Start
* Internal Current Limit Protection
* Internal Under Voltage Protection
* Hysteretic Thermal Shutdown
* With Power-OK Output (with a Delay Time)
* Low Shutdown Quiescent Current (<30 uA)
* Shutdown/Enable Control Function
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
L1806L-SH2-R
L1806G-SH2-R
L1806L-K10-3030-R
L1806G-K10-3030-R
Package
HSOP-8
DFN3030-10
Packing
Tape Reel
Tape Reel
L1806G-SH2-R
(1)Packing Type
(2)Package Type
(3)Green Package
(1) R: Tape Reel
(2) SH2: HSOP-8, K10-3030: DFN3030-10
(3) G: Halogen Free and Lead Free, L: Lead Free
www.unisonic.com.tw
Copyright © 2017 Unisonic Technologies Co., Ltd
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L1806
L1806
MARKING
HSOP-8
DFN3030-10
CMOS IC
PIN CONFIGURATION
PG 1
EN 2
VIN 3
VCNTL 4
GND
8 GND
7 FB
6 VOUT
5 NC
HSOP-8
NC 1
VOUT 2
NC 3
FB 4
PG 5
GND
11
10 VCNTL
9 NC
8 VIN
7 NC
6 EN
Top View
DFN3030-10
PIN DESCRIPTION
PIN NO.
HSOP-8
DFN3030-10
15
26
38
4 10
5 1, 3, 7,9
62
74
8 11
PIN NAME
DESCRIPTION
PG
EN
VIN
VCNTL
NC
VOUT
FB
GND
Power Good.Output open drain to indicate the status of VOUT via
monitoring the FB pin. This pin is pulled low when the voltage is
outside the limits, during thermal shutdown and if either VCNTL or VIN
go below their thresholds.
Enable Pin. Driving this pin low will disable the part. When left
floating an internal current source will pull this pin high and enable
it.
Power Input Pin for current supply. Connect a decoupling capacitor
(10µF) as close as possible to the pin for noise filtering
BIAS supply for the controller, recommended 5V. Connect a
decoupling capacitor (1µF) as close as possible to the pin for
noise filtering.
No Connection
Power output pin
Feedback to set the output voltage via an external resistor divider
between VOUT and GND
Ground
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R102-063.c





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