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參數(shù)資料
| 型號(hào)： | LTC3406ES5-1.5 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT |
| 中文描述： | 1.3 A SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | PLASTIC, MO-193, TSOT-23, 5 PIN |
| 文件頁數(shù)： | 4/24頁 |
| 文件大?。?/td> | 516K |
| 代理商： | LTC3406ES5-1.5 |
LTC3455
4
3455f
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. V
BAT
= 3.6V, V
MAX
= 3.6V, V
PWRON
= 2V, V
ON
is open, V
ON
= 0V,
V
USB
= 0V, V
WALLFB
= 0V unless otherwise noted.
The
G
denotes the specifications which apply over the full operating
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
The LTC3455 is guaranteed to meet specified performance from
0
°
C to 70
°
C and is designed, characterized and expected to meet these
extended temperature limits, but is not tested at –40
°
C and 85
°
C
Note 3:
Quiescent current is pulled from the V
BAT
pin when neither USB or
wall power is present, and from the V
MAX
pin when either USB or Wall
power is present.
PARAMETER
Battery Charger
Regulated Charger V
BAT
Voltage
Charger Current Limit (USB Powered)
CONDITIONS
MIN
TYP
MAX
UNITS
0
°
C
≤
T
A
≤
85
°
C
R
PROG
=2.49k
, V
USBHP
= 2V, V
USB
= 5V, 0
°
C
≤
T
A
≤
85
°
C
R
PROG
=2.49k
, V
USBHP
= 0V, V
USB
= 5V, 0
°
C
≤
T
A
≤
85
°
C
R
PROG
=2.49k
, V
MAX
= 4.5V, 0
°
C
≤
T
A
≤
85
°
C
V
BAT(REGULATED)
– V
RECHARGE
Battery Voltage Rising
4.158
4.200
400
50
500
150
2.85
60
65
2
1.23
0.75
±
10
105
4.242
470
90
575
V
mA
mA
mA
mV
Charger Current Limit (Wall Powered)
Recharge Battery Voltage Threshold
Trickle Charge Trip Threshold
Trickle Charge Trip Hysteresis
Trickle Charge Current
PROG Pin Current
PROG Pin Voltage
CHRG Pin Output Low Voltage
Timer Accuracy
Junction Temperature in
Constant Temperature Mode
425
V
mV
mA
μ
A
R
PROG
=2.49k
, V
BAT
= 2V
Internal Pull-Up Current, No R
PROG
R
PROG
=2.49k
I
CHRG
= 5mA
C
TIMER
= 0.1
μ
F
V
V
%
°
C
TYPICAL PERFOR AU
Burst Mode Quiescent Current
PWM Mode Quiescent Current
Shutdown Quiescent Current
TEMPERATURE (
°
C)
–50
Q
μ
A
120
100
80
60
40
20
0
25
75
3455 G01
–25
0
50
100
125
V
= 3.6V
NOT SWITCHING
BOTH SWITCHERS ENABLED
ONLY SWITCHER 1 ENABLED
TEMPERATURE (
°
C)
–50
Q
μ
A
600
500
400
300
200
100
0
25
75
3455 G02
–25
0
50
100
125
BOTH SWITCHERS ENABLED
ONLY SWITCHER 1 ENABLED
V
= 3.6V
NOT SWITCHING
TEMPERATURE (
°
C)
–50
Q
μ
A
5
4
3
2
1
0
25
75
3455 G03
–25
0
50
100
125
V
BAT
= 3.6V
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