DROPOUT REGULATOR. L11831B Datasheet

L11831B REGULATOR. Datasheet pdf. Equivalent

Part L11831B
Description ULTRA LOW DROPOUT REGULATOR
Feature UNISONIC TECHNOLOGIES CO., LTD L11831A/B/C MAXIMUM 3A, ULTRA LOW DROPOUT REGULATOR WITH ENABLE  DE.
Manufacture UTC
Datasheet
Download L11831B Datasheet

UNISONIC TECHNOLOGIES CO., LTD L11831A/B/C MAXIMUM 3A, ULTRA L11831B Datasheet
Recommendation Recommendation Datasheet L11831B Datasheet





L11831B
UNISONIC TECHNOLOGIES CO., LTD
L11831A/B/C
MAXIMUM 3A, ULTRA LOW
DROPOUT REGULATOR WITH
ENABLE
DESCRIPTION
The UTC L11831A/B/C is a positive voltage regulator with high
performance. It has low dropout voltage and low input voltage,
besides its output voltage can be fixed at 1V,1.05V, 1.2V, 1.5V,
1.8V, or 2.5V depending on internal feedback resistors or ADJ (not
connected to the ground) with external feedback resistors. There
are two additional pin in the UTC L11831A/B/C. One is EN pin and
the other is POK pin.
The UTC L11831A/B/C is specially made for applications with
low input voltage, low dropout voltage, and low output voltage
which is almost the same as the input voltage. Typical applications
include motherboards, notebooks, set top boxes, network cards
and peripheral cards.
FEATURES
* VDD voltage 5V
* Maximum 3A low-dropout voltage regulator
* High accuracy output voltage ±1.5%
* When disable VO pull low resistance
* Internal over current and over temperature protection
1
CMOS IC
HSOP-8
DFN3030-10
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
L11831XL-xx-SH2-R
L11831XG-xx-SH2-R
L11831XL-xx-K10-3030-R L11831XG-xx-K10-3030-R
Note: xx: Output Voltage, refer to Marking Information.
Package
HSOP-8
DFN3030-10
Packing
Tape Reel
Tape Reel
L11831XG-xx-SH2-R
(1)Packing Type
(2)Package Type
(3)Output Voltage Code
(4)Green Package
(5)EN Pin Function
(1) R: Tape Reel
(2) SH2: HSOP-8, K10-3030: DFN3030-10
(3) xx: Refer to Marking Information
(4) G: Halogen Free and Lead Free, L: Lead Free
(5) A: Internal Pull High, B: Internal Pull Low
C: Internal Pull Low, soft-start time
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Copyright © 2019 Unisonic Technologies Co., Ltd
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L11831B
L11831A/B/C
MARKING INFORMATION
PACKAGE VOLTAGE CODE
HSOP-8
DFN3030-10
12: 1.2v
15 : 1.5V
18: 1.8V
25: 2.5V
AD: ADJ
CMOS IC
MARKING
8 765
A: Internal Pull High
B: Internal Pull Low
C: Internal Pull Low, soft-start time
Voltage Code
UTC
L11831X
1 234
Date Code
L: Lead Free
G: Halogen Free
Lot Code
Voltage Code
L
11831
A: Internal Pull High
B: Internal Pull Low
C: Internal Pull Low, soft-start time
Date Code
PIN CONFIGURATION
POK 1
EN 2
VIN 3
VDD 4
GND
HSOP-8
8 GND
7 ADJ
6 VOUT
5 NC
VOUT 1
VOUT 2
VOUT 3
ADJ 4
POK 5
10 VDD
9 VIN
GND
8 VIN
7 VIN
11 6 EN
Top View
DFN3030-10
PIN DESCRIPTION
PIN NO.
HSOP-8 DFN3030-10
15
26
3 7~9
4 10
5-
6 1~3
74
8 11
PIN NAME
POK
EN
VIN
VDD
NC
VOUT
ADJ
GND
DESCRIPTION
This pin will indicate high under this situation: VO reaches 90% of its
rating voltage. Open-drain output.
Chip enable (active-high)
The pin of input voltage.
This pin is for input voltage to control circuit.
No internal connection
Output voltage
When this pin connected to the ground, VOUT will be set by the internal
feedback resistors. Otherwise, if using external feedback resistors to
decide the VOUT, VOUT = 0.8(R1+R2)/R2 Volts.
Ground.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 6
QW-R502-A88.J





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