LTC3576-1_15 Datasheet, PDF (44/48 Pages) Linear Technology – Switching Power Manager with USB On-the-Go Triple Step-Down DC/DCs

LTC3576/LTC3576-1
TYPICAL APPLICATIONS
High Efficiency USB/Automotive Power Manager with Overvoltage Protection, USB On-the-Go, Pushbutton Start,
Automatic Supply Sequencing and 10 Second Push-and-Hold Hard Shutdown
AUTOMOTIVE
FIREWIRE, ETC.
4.7μF
4 _VIN
2
BOOST
68nF ^150k
SW ³
5 _RUN/SS LT3480
40.2k _{10 RT}
8
FB
PG V_C GND BD SYNC
7
11 1 6
9
L1
0.47μF ^6.8μH
D1
499k
22μF
100k
USB,
WALL
ADAPTER
M2
USB
ON-THE-GO
M1
35
26 27 28
V_C WALL ACPR
L2
36 ^3.3μH
C1
34 ^VBUS
SW
33
22μF
0805
V_BUS
V_{OUT 31}
IDGATE
C3
M3
22μF
2.2k
R1
6.2k
5
OVGATE
6
OVSENS
32
0805
BAT
+
Li-Ion
TO OTHER
LOADS
100k
R2
100k ^T
1k
C2
0.1μF
0402
3 _NTCBIAS
4
NTC
29
PROG
1
CLPROG
3.01k
CHRG ³⁰
8
V_IN1
9
SW1
7
FB1
L3
4.7μH
LTC3576/LTC3576-1
4.7k M4
14
SDA
13
SCL
12
DV_CC
1μF
2
LDO3V3
1k
1μF
1M
EN3
10μF
11
ENOTG
10μF 10k
37
I_LIM0
38
I_LIM1
16
V_{IN3 22}
EN2
17
SW3
L5
20 ^2μH
FB3
RST3 ²¹
V_IN2 ²⁴
10
EN1
23
SW2
25
FB2
L4
4.7μH
1.02M
324k
751k
806k
1.02M
365k
10pF
1μF
10μF
1.76V TO 3.3V
400mA
MEMORY
0.8V TO 1.51V
1A
CORE
10pF
1μF
10k
10μF
POR
10pF
1μF
10μF
1.61V TO 3.03V
400mA
I/O
5.1k 5.1k
SDA
SCL
SEND I²C CODE: “0s1201F8”
C1, C3: TAYIO YUDEN JMK212BJ226MG
D1: DIODES INC. DFLS240L
L1: TAIYO YUDEN NP06DZB6R8M
L2: COILCRAFT LPS4018-332LM
L3, L4: TOKO 1098AS-4R7M
L5: TOKO 1098AS-2R0M
3576 TA04
M1: ON SEMICONDUCTOR NTLJS4114N
M2, M3: SILICONIX Si2333DS
M4: 2N7002
R1: 1/10W RESISTOR
R2: CURVE 1
3576fb
44