LTC3577EUFF#PBF Linear Technology, LTC3577EUFF#PBF Datasheet - Page 10

• Manufacturer Part Number: LTC3577EUFF#PBF
• Description: IC PWR MANAGEMENT HANDHELD 44QFN
• Manufacturer: Linear Technology

Specifications of LTC3577EUFF#PBF

• Applications: Handheld/Mobile Devices
• Voltage - Supply: 4.35 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 44-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -

LTC3577/LTC3577-1
ELECTRICAL CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3577E/LTC3577E-1 are guaranteed to meet performance
specifi cations from 0°C to 85°C. Specifi cations over the –40°C to 85°C
operating temperature range are assured by design, characterization and
correlation with statistical process controls.
Note 3: This IC includes over temperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperatures will exceed 110°C when over temperature protection is
active. Continuous operation above the specifi ed maximum operating
junction temperature may result in device degradation or failure.
Note 4: V
Note 5: Total input current is the sum of quiescent current, I
measured current given by V
Note 6: h
with indicated PROG resistor.
Note 7: The current limit features of this part are intended to protect the
IC from short term or intermittent fault conditions. Continuous operation
above the specifi ed maximum pin current rating may result in device
degradation or failure.
TYPICAL PERFORMANCE CHARACTERISTICS
10
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
–50
Input Supply Current
vs Temperature
C/10
CC
V
1x MODE
BUS
is the greater of V
–25
is expressed as a fraction of measured full charge current
= 5V
0
TEMPERATURE (°C)
25
CLPROG
BUS
50
, V
75
/R
OUT
CLPROG
or BAT.
100
3577 G01
• (h
125
CLPROG
0.06
0.10
0.08
0.04
0.02
+ 1).
0
BUSQ
–50 –25
Input Supply Current
vs Temperature (Suspend Mode)
V
BUS
, and
= 5V
0
TEMPERATURE (°C)
25
Note 8: The serial port is tested at rated operating frequency. Timing
parameters are tested and/or guaranteed by design.
Note 9: V
Note 10: FB high, not switching.
Note 11: Measured with the LDO running unity gain with output tied to
feedback pin.
Note 12: Dropout voltage is the minimum input to output voltage
differential needed for an LDO to maintain regulation at a specifi ed output
current. When an LDO is in dropout, its output voltage will be equal to
V
Note 13: PG_DCDC threshold is expressed as a percentage difference from
the Buck1-3 regulation voltages. The threshold is measured from Buck1-3
output rising.
Note 14: I
Note 15: The I
V
Note 16: Long-term current density rating for the part.
IN
INLDO1
50
– V
DROP
, V
75
OUT
VOUT_LED
INLDO2
.
100
not in UVLO.
T
BATQ
A
3577 G02
, V
= 25°C unless otherwise specifi ed
125
specifi cations represent the total battery load assuming
is the sum of V
IN12
and V
400
350
300
250
200
150
100
IN3
50
0
–50
are tied directly to V
Battery Drain Current
vs Temperature
NO LOAD ON SUPPLIES, LDOS AND LED
BOOST DISABLED. V
V
OUT
BUS
–25
and V
= 0V
0
IN3
TEMPERATURE (°C)
current due to LED driver.
25
PULSE-SKIPPING MODE
HARD RESET STATE
BAT
Burst Mode OPERATION
OUT
50
PON STATE
= 3.8V,
.
POFF STATE
PON STATE
75
100
3577 G03
3577fa
125