LD6969
11/18/2008
100mA, Ultra Low Quiescent Current CMOS LDO Regulator
REV: 03
General Description
The LD6969 is a micropower linear regulator, featuring ultra
low quiescent current. The precision of feedback reference
voltage is within
±2%
and output current is up to 100mA. As
well, the LD6969 can be stable with a 1μF output capacitor,
which reduces the board space and cost. It is suitable for the
battery-powered portable equipment, especially for those
that require standby power.
The LD6911 is available in a space saving SOT23-5,
SC70-3, SC70-6 or DFN-6L package.
Features
Shutdown current <1μA
Ultra-Low Quiescent Current:5μA
Low Dropout: 350mV @50mA
Thermal Shutdown and Current Limiting Protection
Wide Operating Voltage Range
Stable with 1μF Output Capacitor
Output Voltage: 1.5V to 3.4V (step 0.1V)
Applications
Battery-Powered Equipment
Hand-Held Instruments
Typical Application
V
IN
1μF/X5R
C
IN
VIN
OUT
V
O UT
EN#
LD6969
C
O UT
1μF/X5R
GND
Fig.1 Typical Application Circuit
1
Leadtrend Technology Corporation
LD6969-DS-03, November 2008
LD6969
Pin Configuration
SOT-23 (TOP VIEW)
VIN
3
YWJ
69
XX
SC-70-3 (TOP VIEW)
VIN
3
2
1
GYWX
1
2
OUT
GND
OUT
SOT-25
5
1
OUT
NC
SC-70-6
GND
OUT NC GND
4
YWJ
69
XX
2
3
6
1
NC
G:
Y:
W:
X:
5
4
3
GYWX
2
VIN
GND EN#
YY, Y : Year code (E: 2005, F: 2006…..)
WW, W: Week code
J69: LD6969
XX: Output Voltage
VIN
EN#
Product code: LD6969
Year code (E: 2005, F: 2006…..)
Week code
Output Voltage (1~9: 1.5V~2.3V,
a~k: 2.4V~ 3.4V)
DFN-6L (1.6x1.6)
GND
6
OUT
4
NC
5
GXX
YWT
1
2
3
VIN
Ordering Information
Part number
LD6969 GL-XX
LD6969 GK-XX
LD6969 GU-XX
LD6969 GH-XX
LD6969G DAW-XX
SOT25
SOT23
SC70-6
SC70-3
DFN-6L 1.6×1.6
Package
Green Package
Green Package
Green Package
Green Package
Green Package
TOP MARK
YWJ69XX
YWJ69XX
GYWX
GYWX
GXX (W)
Shipping
3000 /tape & reel
3000 /tape & reel
3000 /tape & reel
3000 /tape & reel
3000 /tape & reel
Note 1: The LD6969 is ROHS compliant. (Green Package)
Note 2: Part number XX: Output voltage, ex: 15:1.5V,
…. 34:3.4V (step 0.1V)
EN#
NC
Y, YY:
W, WW:
PP:
G :
XX:
Year code (D: 2004, E: 2005…..)
Week code
Production code
LD6969
Voltage code
T
:
Thickness
V: 0.85~0.9mm
W: 0.75mm (normal)
U: 0.55mm
X: 0.4mm
2
Leadtrend Technology Corporation
LD6969-DS-03, November 2008
LD6969
Pin Descriptions
SOT-23/SC70-3
PIN
1
2
3
SOT-25
PIN
1
2
3
4
5
SC70-6
PIN
1
2
3
4
5
6
NAME
NC
VIN
EN#
GND
NC
OUT
No connection
Input Voltage
Chip Enable, Low=Enable, High=Disable
IC GND
No connection
Regulator output
FUNCTION
NAME
VIN
GND
EN#
NC
OUT
Input Voltage
IC GND
Chip Enable, Low=Enable, High=Disable
No connection
Regulator output
FUNCTION
NAME
GND
OUT
VIN
IC GND
Regulator output
Input Voltage
FUNCTION
DFN-6L (1.6 x 1.6)
PIN
1
2
3
4
5
6
EP
NAME
EN#
VIN
NC
OUT
NC
GND
GND
FUNCTION
Chip Enable, Low=Enable, High=Disable
Input Voltage
No connection
Regulator output
No connection
IC GND
Exposed pad should be connected to GND plane to provide efficient
heat path soldered directly to the PCB.
3
Leadtrend Technology Corporation
LD6969-DS-03, November 2008
LD6969
Block Diagram
VIN
1.25V
EN#
Chip Enable
Current lim it
& Therm al
Shutdown
R1
OUT
R2
GND
Absolute Maximum Ratings
VIN, VOUT Pin
EN# Pin
Power dissipation SOT23/SOT25@Ta=25
°
C
Power dissipation SC70-3/SC70-6@Ta=25
°
C
Power dissipation DFN-6L 1.6×1.6 @TA=25°C
Operating Temperature Range
Package Thermal Resistance SOT23/SOT25
Package Thermal Resistance SC70-3/SC70-6
Package Thermal Resistance DFN-6L 1.6 x 1.6
Storage Temperature Range
Lead temperature (Soldering, 10sec)
ESD Level (Human Body Model)
ESD Level (Machine Model)
-0.3V~7V
-0.3V~(VIN+0.3)V
400mW
300mW
571mW
-30
°
C to 85
°
C
250°C/W
333°C/W
175°C/W
-55°C to 125°C
260°C
2KV
200V
Caution:
Stresses beyond the ratings specified in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only
rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not
implied.
4
Leadtrend Technology Corporation
LD6969-DS-03, November 2008
LD6969
Electrical Characteristics
(T
A
= +25 C unless otherwise stated, V
IN
=V
OUT
+1.5V, C
IN
=C
OUT
=1μF)
PARAMETER
INPUT POWER
Input Voltage
Quiescent Current
Shutdown Supply Current
Dropt Voltage
Dropt Voltage
OUTPUT
Output Current Limit
Output Voltage Accuracy
Line Regulation
Load Regulation
Ripple Rejection
EN#
EN# Input Level
THERMAL PROTECTION
Thermal Shutdown
Hysteresis
V
OUT
short to GND
145
30
°C
°C
Enable
Disable
-
1.6
-
-
0.4
-
V
V
I
OUT
=1mA
V
IN
=Vout+1V, to 5.5V,
I
OUT
=1mA
1mA<I
OUT
<50mA
F=1KHz, EIN=1Vrms,
I
OUT
=10mA
100
-2
-
-
-
0.1
0.02
40
200
-
+2
0.2
0.04
-
mA
%
%/V
%/mA
dB
I
OUT
=1mA, V
IN
>3.6V
I
OUT
=50mA, V
IN
>3.6V
10
350
25
550
mV
mV
V
IN
=5.5V, I
OUT
=0mA
EN#=V
IN
2.0
-
-
-
5
-
6
8
1
V
μA
μA
CONDITIONS
MIN
TYP
MAX
UNITS
o
5
Leadtrend Technology Corporation
LD6969-DS-03, November 2008
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