參數(shù)資料
型號: LTC3625EDE-1#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 電源管理
英文描述: POWER SUPPLY SUPPORT CKT, PDSO12
封裝: 3 X 4 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, MO-229WGED, DFN-12
文件頁數(shù): 10/16頁
文件大?。?/td> 262K
代理商: LTC3625EDE-1#TRPBF
LTC3625/LTC3625-1
3625f
elecTrical characTerisTics The
l
denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V, RPROG = 143k, unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IVIN
Input Operating Current,
ISW1 = ISW2 = 0A, No Switching
CTL = VIN, VMID = 1.5V, VOUT = 2.5V (Boost Only)
CTL = VIN, VMID = 1.5V, VOUT = 3.5V (Buck Only)
CTL = 0, VMID = 1.5V, VOUT = 2.5V (Buck and Boost)
135
275
365
200
400
530
A
Input Sleep Current
VIN = 5.5V, VOUT = 5.4V
VIN = 3.6V, VOUT = 5.4V
23
8
35
15
A
Input SD Current
VOUT = 0V
0
1
A
IVOUT
VOUT SD Current
VOUT = 5.4V
0
1
A
VOUT Sleep Current
VOUT = 5.4V, VIN = 3.6V, EN = VIN
VOUT = 5.4V, VIN = 5.5V, EN = VIN
17
1
25
2.5
A
VPROG
PROG Servo Voltage
VOUT = 3.5V, VMID = 1.5V
l
1.17
1.2
1.23
V
hPROG
Ratio of Measured IPROG Current to
IBUCK Programmed Current
118,000
IBUCK
Programmed Buck Charge Current RPROG = 143k (Note 5)
RPROG = 71.5k (Note 5)
0.88
1.76
0.99
1.98
1.10
2.20
A
IMAX
Maximum Programmed Charge
Current
RPROG = 0Ω (Fault Condition) (Note 5)
1.98
2.65
3.31
A
VMID(GOOD)
VMID Voltage Where the Boost
Regulator is Enabled
1.35
V
VMID(GOOD) Hysteresis
150
mV
VTRICKLE
VOUT Voltage Above Which Boost
Regulator Will Exit Trickle Charge
Mode and Enter Normal Charge
Mode
VOUT Rising
VMID
V
VTRICKLE Falling Hysteresis
50
mV
IPEAK(BUCK)
Buck Charge Current Peak
1.1 IBUCK
A
IVALLEY(BUCK) Buck Charge Current Valley
0.9 IBUCK
A
IPEAK(BOOST)
Boost Charge Current Peak
VOUT = 3V, VMID = 2V (Note 5)
VOUT = 1V, VMID = 2V (Note 5)
1.59
2.12
200
2.65
A
mA
IVALLEY(BOOST) Boost Charge Current Valley
VOUT = 3V, VMID = 2V
VOUT = 1V, VMID = 2V
1.41
1.88
0
2.35
A
mA
Maximum Boost Valley Time
VOUT = 1V, VMID = 2V
6.5
s
RPMOS
PMOS On-Resistance
120
RNMOS
NMOS On-Resistance
100
ILEAK
SW Pin Leakage Current for SW1,
SW2
EN = 0V
1
A
VPFI
PFI Falling Threshold
l
1.17
1.2
1.23
V
PFI Hysteresis
15
mV
IPFI
Pin Leakage Current for PFI Pin
0
30
nA
Logic (EN, CTL, VSEL, PGOOD, PFO)
VIL
Input Low Logic Voltage
EN, CTL, VSEL Pins
l
0.4
V
VIH
Input High Logic Voltage
EN, CTL, VSEL Pins
l
1.2
V
IIL, IIH
Input Low, High Current for CTL
CTL
1
A
RPD
EN Pin Pull-Down Resistance
4.5
VSEL Pin Pull-Down Resistance
EN = VIN
4.5
VOL
Output Low Logic Voltage
PGOOD, PFO Pins; Sinking 5mA
l
70
200
mV
IOH
Logic High Leakage Current
PGOOD, PFO Pins; Pin Voltage = 5V
1
A
PGOOD Rising Threshold
VOUT as a Percentage of Final Target
90
92.5
95
%
PGOOD Hysteresis
VOUT as a Percentage of Final Target
3
%
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