參數(shù)資料
型號(hào): LTC3588IMSE-2#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10
封裝: LEAD FREE, PLASTIC, MSOP-10
文件頁數(shù): 12/18頁
文件大?。?/td> 400K
代理商: LTC3588IMSE-2#PBF
LTC3588-2
3
35882fa
elecTrical characTerisTics The
l
denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are for TA = 25°C (Note 2). VIN = 18V unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Input Voltage Range
Low Impedance Source on VIN
l
18.0
V
IQ
VIN Quiescent Current
UVLO
Buck Enabled, Sleeping
Buck Enabled, Not Sleeping
VIN = 12V, Not PGOOD
VIN = 18V
ISW = 0A (Note 4)
830
1500
150
1400
2500
250
nA
A
VUVLO
VIN Undervoltage Lockout Threshold
VIN Rising
l
16.0
17.0
V
VIN Falling
l
13.0
14.0
V
VSHUNT
VIN Shunt Regulator Voltage
IVIN = 1mA
18.8
20.0
21.2
V
ISHUNT
Maximum Protective Shunt Current
1ms Duration
25
mA
Internal Bridge Rectifier Loss
(|VPZ1 – VPZ2| – VIN)
IBRIDGE = 10A
350
400
450
mV
Internal Bridge Rectifier Reverse
Leakage Current
VREVERSE = 18V
20
nA
Internal Bridge Rectifier Reverse
Breakdown Voltage
IREVERSE = 1A
VSHUNT
30
V
VOUT
Regulated Output Voltage
3.45V Output Selected
Sleep Threshold
Wake-Up Threshold
4.1V Output Selected
Sleep Threshold
Wake-Up Threshold
4.5V Output Selected
Sleep Threshold
Wake-Up Threshold
5.0V Output Selected
Sleep Threshold
Wake-Up Threshold
l
3.346
3.979
4.354
4.825
3.466
3.434
4.116
4.084
4.516
4.484
5.016
4.984
3.554
4.221
4.646
5.175
V
PGOOD Falling Threshold
As a Percentage of the Selected VOUT
83
92
%
IVOUT
Output Quiescent Current
VOUT = 5.0V
125
250
nA
IPEAK
Buck Peak Switch Current
200
260
350
mA
IBUCK
Available Buck Output Current
100
mA
RP
Buck PMOS Switch On-Resistance
1.1
RN
Buck NMOS Switch On-Resistance
1.3
Max Buck Duty Cycle
l
100
%
VIH(D0, D1)
D0/D1 Input High Voltage
l
1.2
V
VIL(D0, D1)
D0/D1 Input Low Voltage
l
0.4
V
IIH(D0, D1)
D0/D1 Input High Current
10
nA
IIL(D0, D1)
D0/D1 Input Low Current
10
nA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3588E-2 is tested under pulsed load conditions such
that TJ ≈ TA. The LTC3588E-2 is guaranteed to meet specifications
from 0°C to 85°C junction temperature. Specifications over the –40°C
to 125°C operating junction temperature range are assured by design,
characterization and correlation with statistical process controls. The
LTC3588I-2 is guaranteed over the –40°C to 125°C operating junction
temperature range. Note that the maximum ambient temperature
consistent with these specifications is determined by specific operating
conditions in conjunction with board layout, the rated package thermal
impedance and other environmental factors.
Note 3: The junction temperature (TJ, in °C) is calculated from the ambient
temperature (TA, in °C) and power dissipation (PD, in Watts) according
to the formula: TJ = TA + (PD θJA), where θJA (in °C/W) is the package
thermal impedance.
Note 4: Dynamic supply current is higher due to gate charge being
delivered at the switching frequency.
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