ltc3576 Linear Technology Corporation, ltc3576 Datasheet - Page 3

• Manufacturer Part Number: ltc3576
• Description: Switching Power Manager With Usb On-the-go + Triple Step-down Dc/dcs
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
otherwise noted.
SYMBOL
h
(Note 4)
I
V
V
V
V
f
R
POWERPATH
R
POWERPATH
I
R
PowerPath Switching Regulator—Step-Up Mode (USB On-the-Go)
V
V
I
I
I
V
V
t
Bat-Track Switching Regulator Control
V
ΔV
V
I
R
V
V
VOUT(POWERPATH)
OSC
PEAK_POWERPATH
VBUS
PEAK
OTGQ
SCFAULT
WALLQ
CLPROG
CLPROG
UVLO
DUVLO
OUT
BUS
OUT
CLPROG
OUT(UVLO)
WALL
OUT
HACPR
LACPR
PMOS_
NMOS_
SUSP
ACPR
WALL
PARAMETER
Ratio of Measured V
CLPROG Program Current
V
Discharging Battery
CLPROG Servo Voltage in Current Limit
V
V
Lockout
V
Switching Frequency
PMOS On-Resistance
NMOS On-Resistance
Peak Inductor Current Limit
Suspend LDO Output Resistance
Output Voltage
Input Voltage
Output Current Limit
V
Peak Inductor Current Limit
V
Output Current Limit Servo Voltage
V
V
Short-Circuit Fault Delay
Absolute WALL Input Threshold
Differential WALL Input Threshold
Regulation Target Under V
WALL Quiescent Current
ACPR Pull-Down Strength
ACPR High Voltage
ACPR Low Voltage
OUT
BUS
BUS
OUT
BUS
OUT
OUT
OUT
Current Available Before
Undervoltage Lockout
to BAT Differential Undervoltage
Voltage
Leakage Current in Shutdown
Quiescent Current
UVLO—V
UVLO—V
OUT
OUT
Falling
Rising
BUS
Current to
C
Control
A
= 25°C. V
CONDITIONS
1x Mode
5x Mode
10x Mode
Low Power Suspend Mode
High Power Suspend Mode
1x Mode, BAT = 3.3V
5x Mode, BAT = 3.3V
10x Mode, BAT = 3.3V
Low Power Suspend Mode
High Power Suspend Mode
Switching Modes
Suspend Modes
Rising Threshold
Falling Threshold
Rising Threshold
Falling Threshold
1x, 5x, 10x Modes, 0V < BAT < 4.2V,
I
USB Suspend Modes, I
1x Mode (Note 5)
5x Mode (Note 5)
10x Mode (Note 5)
Closed Loop
0mA ≤ I
On-the-Go Disabled, V
(Note 5)
V
V
Rising Threshold
Hysteresis
WALL-BAT Falling
Hysteresis
VOUT
OUT
BUS
The
= 3.8V, I
< 4V and PMOS Switch Off
= 0mA, Battery Charger Off
VBUS
l
BUS
denotes the specifi cations which apply over the full operating
≤ 500mA, V
VBUS
= 5V, BAT = 3.8V, DV
= 0mA (Note 6)
BUS
VOUT
OUT
< UVLO
= 250μA
> 3.2V
CC
LTC3576/LTC3576-1
l
= 3.3V, R
–150
0.26
3.95
4.75
3.55
MIN
550
1.6
3.4
4.5
1.8
2.9
2.5
4.2
0
CLPROG
BAT + 0.3
BAT + 0.3
1160
2200
1217
V
0.31
1.18
4.30
4.00
2.25
0.18
0.30
1.38
1.15
TYP
210
121
667
100
200
680
100
100
9.6
4.6
1.8
2.6
2.8
7.2
4.3
1.1
56
50
10
30
60
= 3.01k, unless
OUT
2
1
2
3
0
0
MAX
0.41
4.35
5.25
150
2.4
4.7
4.7
2.7
5.5
2.9
4.4
45
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
UNITS
3
MHz
3576f
mA
mA
mA
mA
mA
mV
mV
mV
mA
mA
mV
mV
ms
nA
μA
Ω
Ω
Ω
Ω
V
V
V
V
V
A
A
A
V
V
A
V
V
V
V
V
V
V
V