LTC3577EUFF#PBF Linear Technology, LTC3577EUFF#PBF Datasheet - Page 24

• 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: -

OPERATION
LTC3577/LTC3577-1
24
(TRANSIENTS
7.5V TO 30V
TO 60V)
HV
IN
Figure 7. V
Figure 6. V
BUCK CIRCUITRY
HIGH VOLTAGE
5.0
4.5
4.0
3.5
3.0
2.5
5.0
4.5
4.0
3.5
3.0
2.5
Figure 5. LT3653 Buck Control Using V
2.5
2.5
4.7μF
60V
324k
OUT
OUT
1
4
9
Voltage vs Battery Voltage (LT3480)
Voltage vs Battery Voltage (LT3505)
V
I
GND
3
3
LIM
IN
V
LT3653
V
C
C
3
42
WALL ACPR
BOOST
HVOK
LTC3577
I
SENSE
BAT (V)
BAT (V)
V
OUT
SW
3.5
2
4
3.5
7
8
6
5
IDGATE
41
V
BAT
OUT
4
4
I
I
I
BAT
O
O
O
I
I
BAT
0.1μF
10V
O
O
DFLS240L
= 0.0A
= 0.75A
= 1.5A
39
37
38
= 0.0A
= 0.6A
3577 F07
3577 F06
4.7μH
4.5
4.5
C
+
Si2333DS
(OPT)
3577 F05
Li-Ion
UP TO
1.2A
C
OUT
V
BAT
OUT
3577fa