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LD6991AGU-2533

Description
Regulator
CategoryThe power supply circuit   
File Size202KB,11 Pages
ManufacturerLeadtrend
Websitehttp://www.leadtrend.com.tw
Tongjia Technology was founded in 2002 and moved to Hsinchu Science Park the following year. It is a professional analog IC design company. The management team has rich academic experience in the field of power management and is one of the few design companies that spans AC/DC and DC/DC power management ICs.
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LD6991AGU-2533 Overview

Regulator

LD6991AGU-2533 Parametric

Parameter NameAttribute value
MakerLeadtrend
package instruction,
Reach Compliance Codeunknown
Is SamacsysN
Base Number Matches1

LD6991AGU-2533 Preview

Download Datasheet
LD6991/A
4/11/2008
90mA, Ultra Low Quiescent Current CMOS LDO Regulator
with Voltage Detector Circuit
REV:01b
General Description
The LD6991/A is an ultra low quiescent micropower linear
regulator with voltage detector circuit. For regulator circuit,
the precision of feedback reference voltage is within
±2%
and output current is up to 90mA. As well, it can be stable
with 1uF output capacitor which reduces the board space
and cost. For voltage detector circuit, the reset threshold
voltage accuracy is within
±2%
and the reset time period is
adjustable by an external capacitor.
Features
REGULATOR CIRCUIT
Low Dropout: 350mV @50mA
Ultra Low Quiescent Current: 5μA(typ)
Thermal Shutdown and Current Limiting Protection
Stable with 1μF Capacitor
Output Voltage: 1.5V to 3.3V (step 0.1V)
VOLTAGE DETECTOR CIRCUIT
Reset Threshold Voltage 1.2V to 3.3V (step 0.1V)
Low Supply Current:3μA (typ)
Capacitor-Adjustable Reset Timeout Period
Reset Output Options
Active-Low Open Drain (LD6991)
Active-High Open Drain (LD6991A)
LD6991/A is available in a space saving SC70-6 package.
+patent pending
Applications
Battery-Powered Equipment
Hand-Held Instruments
Typical Application
VDD
100K
V
IN
C
IN
1μF/X5R
VDD
VIN
OUT
V
O UT
LD6991
C
O UT
1μF/X5R
CD
68nF
GND
RESET#
Fig.1 Typical Application Circuit
1
Leadtrend Technology Corporation
LD6991/A-DS-01b, April 2008
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