LTC3455EUF#TRPBF Linear Technology, LTC3455EUF#TRPBF Datasheet - Page 28

• Manufacturer Part Number: LTC3455EUF#TRPBF
• Description: IC CONV DC/DC DUAL USBBATT 24QFN
• Manufacturer: Linear Technology

Specifications of LTC3455EUF#TRPBF

• Applications: Handheld/Mobile Devices
• Voltage - Supply: 3 V ~ 6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -

LTC3455/LTC3455-1
TYPICAL APPLICATION
RELATED PARTS
PART NUMBER
LT1616
LTC1879
LTC3405/LTC3405A
LTC3406/LTC3406B
LTC3407
LTC3412
LTC3414
LTC3440/LTC3441
28
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
WALL 5V
REMOVE THESE
COMPONENTS IF
WALL ADAPTER
IS NOT USED
USB 5V
DESCRIPTION
500mA (I
DC/DC Converter
1.2A (I
DC/DC Converter
300mA (I
DC/DC Converter
600mA (I
DC/DC Converter
Dual 600mA (I
DC/DC Converter
2.5A (I
DC/DC Converter
4A (I
DC/DC Converter
600mA/1A (I
DC/DC Converter
4.7μF
4.7μF
●
3.3V TO 4.2V
C7
FAX: [phone]
CELL Li-ION
C6
1Ω
OUT
1Ω
OUT
OUT
SINGLE
), 4MHz, Synchronous Step-Down
OUT
OUT
OUT
), 550kHz, Synchronous Step-Down
), 4MHz, Synchronous Step-Down
), 1.4MHz, High Effi ciency Step-Down
), 1.5MHz, Synchronous Step-Down
), 1.5MHz, Synchronous Step-Down
OUT
OUT
+
), 2MHz/1MHz, Synchronous Buck-Boost
3.32k
1.24k
), 1.5MHz, Synchronous Step-Down
5.6V
D1
V
1.8V
LBO
●
BAT
CONTROLLER
2.49M
10μF
806k
www.linear.com
C5
C8, 0.1μF
USB
4.7μF
C4
1M
1k
2.49k
10
11
17
16
8
6
5
4
3
2
9
C1 TO C8: X5R OR X7R CERAMIC
L1, L2: TOKO DB318C
D1: ON SEMI MBRM110E
ALL RESISTORS 1%
USB
SUSPEND
USBHP
V
CHRG
WALLFB
TIMER
PROG
V
AO
AI
MAX
BAT
LTC3455/LTC3455-1
COMMENTS
90% Effi ciency, V
I
95% Effi ciency, V
I
95% Effi ciency, V
I
96% Effi ciency, V
I
96% Effi ciency, V
I
95% Effi ciency, V
I
95% Effi ciency, V
I
95% Effi ciency, V
I
SD
SD
SD
SD
SD
SD
SD
SD
PWRON
PBSTAT
MODE
HSON
SW2
SW1
<1μA, ThinSOT
<1μA, TSSOP16
<1μA, ThinSOT
<1μA, ThinSOT
<1μA, MS10E
<1μA, TSSOP16E
<1μA, TSSOP16E
<1μA, MS/DFN
HSO
GND
ON2
RST
3455 TA03
HSI
FB2
FB1
ON
21
15
19
22
20
23
24
14
13
12
18
7
1
25
L2, 4.7μH
L1, 4.7μH
1M
10pF
10pF
IN
IN
IN
IN
IN
IN
IN
IN
: 3.6V to 25V, V
: 2.7V to 10V, V
: 2.7V to 6V, V
: 2.5V to 5.5V, V
: 2.5V to 5.5V, V
: 2.5V to 5.5V, V
: 2.25V to 5.5V, V
: 2.5V to 5.5V, V
1M
ON/OFF
μC
© LINEAR TECHNOLOGY CORPORATION 2006
C3
1μF
1.8V
3.3V, HS
249k
80.6k
100k
80.6k
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
LT 0708 REV C • PRINTED IN USA
= 0.8V, I
C2
10μF
C1
10μF
3.3V
0.5A
1.8V
0.4A
= 1.25V, I
= 0.8V, I
= 0.6V, I
= 0.6V, I
= 0.8V, I
= 2.5V, I
= 0.8V, I
Q
Q
= 20μA,
Q
Q
Q
Q
Q
= 15μA,
Q
= 20μA,
= 40μA,
= 60μA,
= 25μA/50μA,
= 1.9mA,
= 64μA,
3455fc