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SC1464 数据表(PDF) 2 Page - Semtech Corporation

部件名 SC1464
功能描述  60mA PROGRAMMABLE FIXED FREQUENCY CHARGE PUMP DOUBLER
PDF  10 Pages
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制造商  SEMTECH [Semtech Corporation]
网页  http://www.semtech.com
标志 SEMTECH - Semtech Corporation

SC1464 数据表(HTML) 2 Page - Semtech Corporation

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© 2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
60mA PROGRAMMABLE FIXED
FREQUENCY CHARGE PUMP DOUBLER
SC1464
PRELIMINARY - August 11, 2000
2
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Maximum
Units
Input Supply Voltage
V
IN
-0.3 to +4
V
Output Voltage
V
O
-0.3 to +8
V
V
OUT Short-Circuit Duration
SC
Indefinite
Operating Ambient Temperature Range
T
A
-40 to +85
°C
Operating Junction Temperature
T
J
-40 to +125
°C
Storage Temperature Range
T
STG
-65 to +150
°C
Lead Temperature (Soldering) 10 Sec
T
LEAD
300
°C
Thermal Temperature Junction to Ambient
°
JA
185
°C/W
Thermal Impedance Junction to Case
°
JC
47
°C/W
Parameter
Symbol
Test Conditions
MIN
TYP
MAX
Units
Input Supply Voltage
V
IN
2.5
3.5
V
Input Supply Current
I
IN
I
O = 0 TF1 = 0, TF2 = 1, freq = 8kHz
45
55
µA
I
O = 0 TF1 = 0, TF2 = 0, freq = 32kHz
270
330
I
O = 0 TF1 = 1, TF2 = 0, freq = 260kHz
1.6
2
mA
I
O = 0 TF1 = 1, TF2 = 1, freq = 1MHz
5.8
8
EN = GND
1
µA
Output Current
I
O
V
I = 2.85, TF1 = 0, TF2 = 1. freq = 8kHz
5
V
I = 2.85, TF1 = 0, TF2 = 0. freq = 32kHz
20
mA
V
I = 2.85, TF1 = 1, TF2 = 0. freq = 260kHz
60
V
I = 2.85, TF1 = TF2 = 1. freq = 1MHz
C
bucket = 220nF
45
Max. Output Voltage
(3)
V
OUT
I
O = 0
2*V
IN
V
Short Circuit Current
I
SC
V
O = 0 to VIN - 1V, IO = IIN
170
mA
Output Ripple (pk-pk)
(1)(3)
V
R
I
O = 60mA, Frequency = 260kHz
150
mV
Power Efficiency
♣
I
O = 60mA, TF1 = 1, TF2 = 0
85
%
Oscillator Frequency
OSC
TF1 = 0, TF2 = 1
7.82
8.50
9.18
kHz
TF1 = 0, TF2 = 0
30.18
32.80
35.42
kHz
TF1 = 1, TF2 = 0
241.13 262.10
283.07
kHz
TF1 = TF2 = 1
0.92
1.00
1.08
MHz
ELECTRICAL CHARACTERISTICS
Unless specified, T
A = -40°C to 85°C, EN = VIN, CBucket = 2.2µF(ESR = 0.1τ), CIN , COUT = 3.3µF(ESR = 1τ), VIN = 3V±5%, VOUT = 5.2V to 6.2V.



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