ADP5020(RevA) Просмотр технического описания (PDF) - Analog Devices
Номер в каталоге
Компоненты Описание
производитель
ADP5020 Datasheet PDF : 28 Pages
| |||
ADP5020
Data Sheet
DC-TO-DC CONVERSION SPECIFICATIONS, BUCK 2 REGULATOR
Table 4.
Parameter
OUTPUT VOLTAGE
Adjustable Range1
Initial Accuracy
Total Accuracy
Load Regulation
Line Regulation
CURRENT
Maximum Output Current
Quiescent Current
POWER
Low-Side Power nMOSFET
High-Side Power pMOSFET
SWITCH CURRENT LIMIT
MINIMUM ON TIME
MAXIMUM DUTY CYCLE
SOFT START TIME
COUT DISCHARGE SWITCH ON RESISTANCE
Symbol
VOUT2
IBK2MAX
IQBK2
RDSON2
RDSON2
ICL2
tMIN2
DMAX2
tSS2
RDIS2
Conditions
Min Typ
4-bit range
1.1
TA = 25°C, VDD2 = 3.6 V, VOUT2 = 1.2 V, ILOAD = 20 mA −1
VDD2 = 2.5 V to 5 V, ILOAD = 10 mA to 250 mA
−5
ILOAD = 10 mA to 250 mA
0.2
VDDA = 1.8 V, VDD2 = 2.5 V to 5 V
0.15
ILOAD = 0 mA
ID = 200 mA
ID = 200 mA
4
240
300
360 630
55
87.5
900
0.7 1
1 See Table 14 (the BUCK2_LDO_VSEL register, Address 0x02) for details.
VOUT3 SPECIFICATIONS, LOW DROPOUT (LDO) REGULATOR
Table 5.
Parameter
Symbol Conditions
Min Typ
OUTPUT VOLTAGE
Adjustable Range1
VOUT3
100 mV step, 4-bit range
1.8
Initial Accuracy
TA = 25°C, VDD3 = 3.6 V, VOUT3 = 1.8 V, ILOAD = 10 mA −1.5
Total Accuracy
VDD3 = 2.5 V to 5 V, ILOAD = 0 mA to 150 mA
−5
Load Regulation
Line Regulation
ILOAD = 10 mA to 100 mA
0.45
ILOAD = 100 mA2
0.15
CURRENT
Maximum Output Current
ILDOMAX
Dropout Voltage
VLDODROP At 100 mA, VOUT3 = 3.3 V
70
Quiescent Current
IQ
ILOAD = 0 mA
45
Short-Circuit Current Limit
200 400
Power Supply Rejection Ratio
PSRR
f = 1 kHz, VDD3 = 5 V, VOUT3 = 3.3 V, ILOAD = 50 mA
47
f = 10 kHz, VDD3 = 5 V, VOUT3 = 3.3 V, ILOAD = 50 mA
44
SOFT START TIME
tSS2
70
COUT DISCHARGE SWITCH ON RESISTANCE RDIS8
0.7 1
1 See Table 14 (the BUCK_LDO_VSEL register, Address 0x02) for details.
2 VDD3 > VOUT3 + LDODROP.
Max Unit
1.8
V
+1
%
+4
%
%
%
250 mA
6.5
mA
330 mΩ
450 mΩ
850 mA
ns
90
%
µs
1.3
kΩ
Max Unit
3.3 V
+1.5 %
+4 %
0.75 %
0.30 %
150 mA
100 mV
85 µA
600 mA
dB
dB
µs
1.3 kΩ
Rev. A | Page 6 of 28
Share Link: 