參數(shù)資料
型號(hào)： ADP1875ARQZ-0.3-R7
廠商： ANALOG DEVICES INC
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDSO16
封裝： ROHS COMPLIANT, MO-137AB, QSOP-16
文件頁(yè)數(shù)： 34/44頁(yè)
文件大?。?/td> 2475K
代理商： ADP1875ARQZ-0.3-R7
ADP1874/ADP1875
Rev. 0 | Page 4 of 44
Parameter
Symbol
Test Conditions/Comments
Min
Typ
Max
Unit
ADP1874ARQZ-0.6/
ADP1875ARQZ-0.6 (600 kHz)
600
kHz
On-Time
VIN = 5 V, VOUT = 2 V, TJ = 25°C
500
540
580
ns
Minimum On-Time
VIN = 20 V, VOUT = 0.8 V
82
110
ns
Minimum Off-Time
65% duty cycle (maximum)
340
400
ns
ADP1874ARQZ-1.0/
ADP1875ARQZ-1.0 (1.0 MHz)
1.0
MHz
On-Time
VIN = 5 V, VOUT = 2 V, TJ = 25°C
285
312
340
ns
Minimum On-Time
VIN = 20 V
52
85
ns
Minimum Off-Time
45% duty cycle (maximum)
340
400
ns
OUTPUT DRIVER CHARACTERISTICS
High-Side Driver
Output Source Resistance2
ISOURCE = 1.5 A, 100 ns, positive pulse (0 V to 5 V)
2.25
3
Ω
Output Sink Resistance2
ISINK = 1.5 A, 100 ns, negative pulse (5 V to 0 V)
0.70
1
Ω
Rise Time3
tr, DRVH
BST SW = 4.4 V, CIN = 4.3 nF (see Figure 59)
25
ns
Fall Time3
tf, DRVH
BST SW = 4.4 V, CIN = 4.3 nF (see Figure 60)
11
ns
Low-Side Driver
Output Source Resistance2
ISOURCE = 1.5 A, 100 ns, positive pulse (0 V to 5 V)
1.6
2.2
Ω
Output Sink Resistance2
ISINK = 1.5 A, 100 ns, negative pulse (5 V to 0 V)
0.7
1
Ω
Rise Time3
tr,DRVL
VREG = 5.0 V, CIN = 4.3 nF (see Figure 60)
18
ns
Fall Time3
tf,DRVL
VREG = 5.0 V, CIN = 4.3 nF (see Figure 59)
16
ns
Propagation Delays
DRVL Fall to DRVH Rise3
ttpdhDRVH
BST SW = 4.4 V (see Figure 59)
15.4
ns
DRVH Fall to DRVL Rise3
ttpdhDRVL
BST SW = 4.4 V (see Figure 60)
18
ns
SW Leakage Current
ISWLEAK
BST = 25 V, SW = 20 V, VREG = 5 V
110
μA
Integrated Rectifier
Channel Impedance
ISINK = 10 mA
22
Ω
PRECISION ENABLE THRESHOLD
Logic High Level
VIN = 2.9 V to 20 V, VREG = 2.75 V to 5.5 V
605
634
663
mV
Enable Hysteresis
VIN = 2.9 V to 20 V, VREG = 2.75 V to 5.5 V
31
mV
COMP VOLTAGE
COMP Clamp Low Voltage
VCOMP(LOW)
Tie EN pin to VREG to enable device
(2.75 V ≤ VREG ≤ 5.5 V)
0.47
V
COMP Clamp High Voltage
VCOMP(HIGH)
(2.75 V ≤ VREG ≤ 5.5 V)
2.55
V
COMP Zero Current Threshold
VCOMP_ZCT
(2.75 V ≤ VREG ≤ 5.5 V)
1.15
V
THERMAL SHUTDOWN
TTMSD
Thermal Shutdown Threshold
Rising temperature
155
°C
Thermal Shutdown Hysteresis
15
°C
CURRENT LIMIT
Hiccup Current Limit Timing
COMP = 2.4 V
6
ms
OVERVOLTAGE AND POWER GOOD
THRESHOLDS
PGOOD
FB Power Good Threshold
FBPGD
VFB rising during system power-up
542
566
mV
FB Power Good Hysteresis
30
mV
FB Overvoltage Threshold
FBOV
VFB rising during overvoltage event, IPGOOD = 1 mA
691
710
mV
FB Overvoltage Hysteresis
30
mV
PGOOD Low Voltage During Sink
VPGOOD
IPGOOD = 1 mA
143
200
mV
PGOOD Leakage Current
PGOOD = 5 V
1
400
nA
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