ltc3523-ltc3523-2 Linear Technology Corporation, ltc3523-ltc3523-2 Datasheet - Page 2

• Manufacturer Part Number: ltc3523-ltc3523-2
• Description: Synchronous 600ma Step-up And 400ma Step-down Dc/dc Converters
• Manufacturer: Linear Technology Corporation

ABSOLUTE MAXIMUM RATINGS
ORDER INFORMATION
ELECTRICAL CHARACTERISTICS
LTC3523/LTC3523-2
(Note 1)
V
⎯ S ⎯ H ⎯ D ⎯ N ⎯ 1 , PGOOD1, PGOOD2, FB1 Voltages .. –0.3V to 6V
⎯ S ⎯ H ⎯ D ⎯ N ⎯ 2 , FB2, MODE Voltages ...... –0.3V to (V
SW1 Voltage
SW2 Voltage Pulse < 100ns ......... –0.3V to (V
Operating Temperature Range
(Notes 2, 3) .............................................. –40°C to 85°C
Storage Temperature Range ................... –65°C to 125°C
LEAD FREE FINISH
LTC3523EUD#PBF
LTC3523EUD-2#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
temperature range, otherwise specifi cations are at T
otherwise specifi ed.
PARAMETER
Minimum Start-Up Voltage
Frequency Accuracy
Quiescent Current–Shutdown
Quiescent Current –Sleep
Quiescent Current V
⎯ S ⎯ H ⎯ D ⎯ N ⎯ 1 , ⎯ S ⎯ H ⎯ D ⎯ N ⎯ 2 Input High
⎯ S ⎯ H ⎯ D ⎯ N ⎯ 1 , ⎯ S ⎯ H ⎯ D ⎯ N ⎯ 2 Input Low
⎯ S ⎯ H ⎯ D ⎯ N ⎯ 1 , ⎯ S ⎯ H ⎯ D ⎯ N ⎯ 2 Input Current
PGOOD1, PGOOD2 Threshold
PGOOD1, PGOOD2 Low Voltage
PGOOD1, PGOOD2 Leakage
MODE Input High
MODE Input Low
2
IN1
DC .............................................................. 0.3V to 6V
Pulse < 100ns .......................................... –0.3V to 7V
, V
IN2
, V
BAT
OUT
, V
OUT
– Sleep
TAPE AND REEL
LTC3523EUD#TRPBF
LTC3523EUD-2#TRPBF
Voltages .................... –0.3V to 6V
CONDITIONS
I
LTC3523
LTC3523-2
V
Measured from V
Measured from V
V
Referenced to the Feedback Voltage
I
V
LOAD
PGOOD
⎯ S ⎯ H ⎯ D ⎯ N ⎯ 1
⎯ S ⎯ H ⎯ D ⎯ N
PGOOD
http://www.linear.com/leadfree/
PART MARKING
LCYC
LDDR
= 1mA
= 5.5V
= 5.5mA
= V
http://www.linear.com/tapeandreel/
= 5.25V
A
IN2
IN2
= 25°C. V
⎯ S ⎯ H ⎯ D ⎯ N ⎯ 2
+ 0.3V)
+ 0.3V)
The
SUPPLY
OUT
= 0V, V
●
IN1
= 3.3V (Note 4)
denotes the specifi cations which apply over the full operating
, V
OUT
= V
IN1
PIN CONFIGURATION
IN2
= 0V, V
= V
= V
IN2
PACKAGE DESCRIPTION
16-Lead (3mm × 3mm) Plastic DFN
16-Lead (3mm × 3mm) Plastic DFN
IN1
IN3
= V
= V
BAT
= 2.4V, V
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
IN2
= 2.4V
= V
PG00D1
16-LEAD (3mm 3mm) PLASTIC QFN
BAT
V
V
OUT
FB1
OUT
IN1
T
= 3.3V, V
JMAX
1
2
3
4
●
●
●
16 15 14 13
5
= 125°C, θ
UD PACKAGE
TOP VIEW
6
17
MIN
0.9
1.8
1.0
OUT(STEP-DOWN)
–6
1
7
JA
= 68°C/W
8
12
11
10
9
0.35
0.01
TYP
1.6
1.2
2.4
0.5
1.4
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
45
15
–9
FB2
PGOOD2
MODE
V
IN2
= 1.2V unless
MAX
2.65
0.35
0.35
–14
1.8
1.5
3
2
1
UNITS
MHz
MHz
3523f
μA
μA
μA
μA
μA
%
V
V
V
V
V
V