LTC3557EUF-1#PBF Linear Technology, LTC3557EUF-1#PBF Datasheet - Page 2

• Manufacturer Part Number: LTC3557EUF-1#PBF
• Description: IC USB POWER MANAGE 28-QFN
• Manufacturer: Linear Technology

Specifications of LTC3557EUF-1#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: 28-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -

ABSOLUTE MAXIMUM RATINGS
POWER MANAGER ELECTRICAL CHARACTERISTICS
LTC3557/LTC3557-1
(Notes 1-4)
V
BAT, NTC, CHRG, WALL, V
MODE, FB1, FB2, FB3, RST2 ........................ −0.3V to 6V
EN1, EN2, EN3 .............................. −0.3V to V
ILIM0, ILIM1, PROG ....................... −0.3V to V
I
I
I
I
I
Maximum Operating Junction Temperature .......... 110°C
Operating Ambient Temperature Range ... −40°C to 85°C
Storage Temperature Range ................... −65°C to 125°C
The
V
SYMBOL
Input Power Supply
V
I
I
h
V
V
LEAD FREE FINISH
LTC3557EUF#PBF
LTC3557EUF-1#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
2
ORDER INFORMATION
BUS(LIM)
BUSQ
VBUS
SW1
SW2
RST2
CLPROG
CLPROG
BUS
CLPROG
UVLO
BUS
BUS
t < 1ms and Duty Cycle < 1% .................. −0.3V to 7V
Steady State ............................................. −0.3V to 6V
●
, I
= 5V, V
, V
.....................................................................850mA
, I
, I
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at T
SW3
CHRG
VOUT
OUT
, I
PROG
BAT
, V
............................................................600mA
PARAMETER
Input Supply Voltage
Total Input Current (Note 5)
Input Quiescent Current
Ratio of Measured V
Program Current
CLPROG Servo Voltage in Current Limit
V
, I
BUS
, I
IN1
BAT
= 3.8V, ILIM0 = ILIM1 = 5V, WALL = EN1 = EN2 = EN3 = 0V, R
ACPR
..........................................................2mA
Undervoltage Lockout
, V
.........................................................2A
IN2
.................................................75mA
TAPE AND REEL
LTC3557EUF#TRPBF
LTC3557EUF-1#TRPBF
BUS
C
,
Current to CLPROG
http://www.linear.com/leadfree/
PART MARKING
3557
35571
http://www.linear.com/tapeandreel/
CONDITIONS
ILIM0 = 0V, ILIM1 = 0V (1x Mode)
ILIM0 = 5V, ILIM1 = 5V (5x Mode)
ILIM0 = 5V, ILIM1 = 0V (10x Mode)
1x, 5x, 10x Modes
ILIM0 = 0V, ILIM1 = 5V (Suspend Mode)
1x, 5x, 10x Modes
1x Mode
5x Mode
10x Mode
Rising Threshold
Falling Threshold
OUT
CC
+ 0.3V
+ 0.3V
PIN CONFIGURATION
PACKAGE DESCRIPTION
28-Lead (4mm × 4mm) Plastic QFN
28-Lead (4mm × 4mm) Plastic QFN
PROG
EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB
= 2k, R
LDO3V3
ILIM0
ILIM1
WALL
SW1
V
FB1
IN1
CLPROG
28-LEAD (4mm 4mm) PLASTIC QFN
1
2
3
4
5
6
7
●
●
T
28 27 26 25 24 23
JMAX
8
= 2.1k.
9
= 110°C, θ
UF PACKAGE
4.35
MIN
450
900
10 11 12 13 14
3.5
80
TOP VIEW
29
JA
= 37°C/W
1000
0.35
0.05
TYP
475
950
0.2
1.0
2.0
3.8
3.7
90
22
TEMPERATURE RANGE
−40°C to 85°C
−40°C to 85°C
21
20
19
18
17
16
15
GATE
PROG
NTC
V
SW3
V
SW2
NTC
IN2
MAX
1000
100
500
5.5
0.1
3.9
A
= 25°C.
mA/mA
UNITS
35571fc
mA
mA
mA
mA
mA
V
V
V
V
V
V