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LTC3566-2_15 Datasheet, PDF (4/28 Pages) Linear Technology – High Efficiency USB Power Manager Plus 1A Buck-Boost Converter
◁
LTC3566/LTC3566-2
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VBUS = 5V, VBAT = 3.8V, DVCC = 3.3V, RCLPROG = 3.01k, RPROG = 1k,
VIN1 = VOUT1 = 3.8V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
RON_CHG
TLIM
Battery Charger Power FET On
Resistance (Between VOUT and BAT)
Junction Temperature in Constant
Temperature Mode
0.18
Ω
110
°C
NTC
VCOLD
VHOT
VDIS
Cold Temperature Fault Threshold
Voltage
Hot Temperature Fault Threshold
Voltage
NTC Disable Threshold Voltage
Rising Threshold
Hysteresis
Falling Threshold
Hysteresis
Falling Threshold
Hysteresis
75.0
76.5
78.0 %VBUS
1.5
%VBUS
33.4
34.9
36.4 %VBUS
1.5
%VBUS
0.7
1.7
2.7
%VBUS
50
mV
INTC
Ideal Diode
NTC Leakage Current
VNTC = VBUS = 5V
–50
50
nA
VFWD
RDROPOUT
Forward Voltage
Internal Diode On-Resistance,
Dropout
VBUS = 0V, IOUT = 10mA
IOUT = 10mA
VBUS = 0V
2
mV
15
mV
0.18
Ω
IMAX_DIODE
Internal Diode Current Limit
Always On 3.3V Supply
1.6
A
VLDO3V3
Regulated Output Voltage
RCL_LDO3V3
Closed-Loop Output Resistance
ROL_LDO3V
Dropout Output Resistance
Logic (ILIM0, ILIM1, EN1, CHRGEN, MODE)
VIL
Logic Low Input Voltage
VIH
Logic High Input Voltage
IPD1
ILIM0, ILIM1, EN1, MODE
Pull-Down Currents
IPD1_CHRGEN
CHRGEN Pull-Down Current
Buck-Boost Regulator
0mA < ILDO3V3 < 25mA
3.1
3.3
3.5
V
4
Ω
23
Ω
0.4
V
1.2
V
1.6
μA
1.6
10
μA
VIN1
VOUTUVLO
fOSC
IVIN1
Input Supply Voltage
VOUT UVLO -VOUT Falling
VOUT UVLO - VOUT Rising
Oscillator Frequency
Input Current
2.7
5.5
V
VIN1 Connected to VOUT Through
Low Impedance. Switching Regulator
Disabled in UVLO
2.5
2.6
V
2.8
2.9
V
PWM Mode
●
1.8
2.25
2.7
MHz
PWM Mode, IOUT1 = 0μA
Burst Mode® Operation, IOUT1 = 0μA
Shutdown
220
400
μA
13
20
μA
0
1
μA
Burst Mode is a registered trademark of Linear Technology Corporation.
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