LTC3553 Linear Technology Corporation, LTC3553 Datasheet - Page 2

• Manufacturer Part Number: LTC3553
• Description: Micropower USB Power Manager
• Manufacturer: Linear Technology Corporation

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ABSOLUTE MAXIMUM RATINGS
LTC3553
(Notes 1, 2, 3)
V
BAT, NTC, CHRG, SUSP , PBSTAT,
ON, BUCK_FB, LDO_FB ................................ –0.3V to 6V
BUCK_ON, LDO_ON, STBY, SEQ, HPWR,
BVIN, V
I
I
I
I
Operating Temperature Range.................. –40°C to 85°C
Junction Temperature ........................................... 110°C
Storage Temperature Range ................... –65°C to 125°C
ORDER INFORMATION
LEAD FREE FINISH
LTC3553EPD#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:
POWER MANAGER ELECTRICAL CHARACTERISTICS
The
V
SYMBOL
No-Load Quiescent Currents
I
I
I
2
BAT
SW
LDO
CHRG
BATQ
BATQC
BUSQ
BUS
BUS
t < 1ms and Duty Cycle < 1% .................. –0.3V to 7V
Steady State ............................................. –0.3V to 6V
l
(Continuous) .................................................300mA
.............................................................................1A
(Continuous) ................................................175mA
= 5V, V
, V
, I
denotes specifi cations that apply over the full operating temperature range, otherwise specifi cations are at T
PBSTAT
OUT
INLDO
PARAMETER
Battery Drain Current (Note 5)
Battery Drain Current, V
V
BAT
BUS
Buck and LDO Shutdown, Hard Reset
Buck and LDO Shutdown
Buck and LDO Enabled, Standby Mode
Buck and LDO Enabled
Buck Enabled, LDO Shutdown
LDO Enabled, Buck Shutdown
, LDO (Note 4) .............–0.3V to V
.........................................................75mA
= 3.8V, HPWR = SUSP = BUCK_ON = LDO_ON = 0V, R
Input Current
TAPE AND REEL
LTC3553EPD#TRPBF
BUS
Available
http://www.linear.com/leadfree/
PART MARKING
FHST
CONDITIONS
I
V
100mA, 500mA Modes
SUSP = 5V (Suspend Mode)
OUT
BAT
V
V
V
V
STBY = 0V
V
STBY = 0V
V
STBY = 0V
Charger On
Timer Timed Out
http://www.linear.com/tapeandreel/
BUS
BUS
BUS
BUS
BUS
BUS
CC
= I
= V
SW
= 0V, Hard Reset
= 0V
= 0V, BUCK_ON = LDO_ON = STBY = 3.8V
= 0V, BUCK_ON = LDO_ON = 3.8V,
= 0V, BUCK_ON = 3.8V, LDO_ON = 0V
= 0V, LDO_ON = 3.8V, BUCK_ON = 0V,
+ 0.3V
FLOAT
= I
LDO
, Timer Timed Out
= 0
PIN CONFIGURATION
PROG
PACKAGE DESCRIPTION
20-Lead (3mm × 3mm) Plastic UTQFN
= 1.87k, STBY = high, unless otherwise noted.
EXPOSED PAD (PIN 21) IS GND, AND MUST BE SOLDERED TO PCB GND
LDO_ON
PBSTAT
HPWR
20-LEAD (3mm × 3mm) PLASTIC UTQFN
SEQ
ON
T
JMAX
1
2
3
4
5
20 19 18 17 16
6
= 110°C, θ
PD PACKAGE
TOP VIEW
7
21
8
MIN
JA
9 10
= 70°C/W
15
14
13
12
11
TYP
300
150
TEMPERATURE RANGE
–40°C to 85°C
0.2
6.5
16
16
15
3
8
5
NTC
CHRG
SW
BVIN
V
INLDO
A
= 25°C,
MAX
500
350
16
35
15
35
30
2
5
8
UNITS
3553f
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA