ltc3576 Linear Technology Corporation, ltc3576 Datasheet - Page 5

• 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
Always On 3.3V LDO Supply
V
R
R
Logic (I
V
V
I
I
DV
I
V
ADDRESS
V
V
I
V
f
t
t
t
t
t
t
t
t
t
t
t
t
General Purpose Switching Regulators 1, 2 and 3
V
V
f
I
D1,2,3
R
PD1
2
DVCC
PD2
SCL
BUF
HD_STA
SU_STA
SU_STO
HD_DAT(O)
HD_DAT(I)
SU_DAT
LOW
HIGH
f
r
SP
OSC
FB1,2,3
LDO3V3
CL_LDO3V3
OL_LDO3V3
IL
IH
DVCC(UVLO)
IH
IL
OL
IN1,2,3
OUT(UVLO)
SW1,2,3_PD
C Port
CC
, SDA, SCL
, SDA, SCL
, SDA, SCL
LIM0
, I
LIM1
, EN1, EN2, EN3, ENOTG, and SCL, SDA when DV
PARAMETER
Regulated Output Voltage
Closed-Loop Output Resistance
Dropout Output Resistance
Logic Low Input Voltage
Logic High Input Voltage
I
SDA Pull-Down Current
Input Supply
DV
DV
I
Input High Threshold
Input Low Threshold
Pull-Down Current
Digital Output Low (SDA)
Clock Operating Frequency
Bus Free Time Between Stop and Start
Condition
Hold Time After (Repeated) Start
Condition
Repeated Start Condition Setup Time
Stop Condition Setup Time
Data Hold Time Output
Data Hold Time Input
Data Setup Time
SCL Low Period
SCL High Period
SDA/SCL Fall Time
SDA/SCL Rise Time
Input Spike Suppression Pulse Width
Input Supply Voltage
V
V
Switching Frequency
FBx Input Current
Maximum Duty Cycle
SWx Pull-Down in Shutdown
LIM0
2
OUT
OUT
C Address
CC
CC
, I
UVLO—V
UVLO—V
Current
UVLO
LIM1
, EN1, EN2, EN3, ENOTG, SCL,
OUT
OUT
Falling
Rising
A
= 25°C. V
CONDITIONS
0mA < I
SCL/SDA = 0kHz, DV
I
(Note 8)
V
Low Impedance. Switching
Regulators are Disabled in UVLO
V
SDA
IN1,2,3
FB1,2,3
The
= 3mA
CC
LDO3V3
Connected to V
= 0.85V
= 0V)
l
BUS
denotes the specifi cations which apply over the full operating
= 5V, BAT = 3.8V, DV
< 20mA
CC
OUT
= 3.3V
Through
CC
LTC3576/LTC3576-1
= 3.3V, R
MIN
100
–50
100
3.1
1.2
1.6
1.3
0.6
0.6
0.6
1.3
0.6
2.7
2.5
1.8
70
20
20
0
0
CLPROG
0001001[0]
2.25
TYP
3.3
2.7
0.5
1.0
2.6
2.8
23
10
= 3.01k, unless
2
2
MAX
400
900
300
300
3.5
0.4
5.5
0.4
5.5
2.9
2.7
30
50
50
%DV
%DV
UNITS
5
MHz
3576f
kHz
kΩ
μA
μA
μA
nA
μs
μs
μs
μs
ns
ns
ns
μs
μs
ns
ns
ns
CC
CC
Ω
Ω
%
V
V
V
V
V
V
V
V
V