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SP7662 数据表(PDF) 3 Page - Sipex Corporation

部件名 SP7662
功能描述  Wide Input Voltage Range 12A, 300kHz, Buck Regulator
PDF  19 Pages
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制造商  SIPEX [Sipex Corporation]
网页  http://www.sipex.com
标志 SIPEX - Sipex Corporation

SP7662 数据表(HTML) 3 Page - Sipex Corporation

  SP7662_07 Datasheet HTML 1Page - Sipex Corporation SP7662_07 Datasheet HTML 2Page - Sipex Corporation SP7662_07 Datasheet HTML 3Page - Sipex Corporation SP7662_07 Datasheet HTML 4Page - Sipex Corporation SP7662_07 Datasheet HTML 5Page - Sipex Corporation SP7662_07 Datasheet HTML 6Page - Sipex Corporation SP7662_07 Datasheet HTML 7Page - Sipex Corporation SP7662_07 Datasheet HTML 8Page - Sipex Corporation SP7662_07 Datasheet HTML 9Page - Sipex Corporation Next Button
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3
Mar -07 Rev AJ
SP7662 Wide Input Voltage Range 2A, 300kHz Buck Regulator
© 2007 Sipex Corporation
ELECTRICAL SPECIFICATIONS
SpecificationsareforTAMB = TJ = 25°C, and those denoted by ♦ apply over the full operating range, -40°C< Tj< 25°C. Unless
otherwisespecified:4.5V<Vcc<5.5V,3V<ViN < 22V, BST = LX + 5V, UVIN = 3V, CVCC = µF, CCOMP = 0.µF, Css = 50nF.
PARAMETER
MIN TYP MAX UNITS ♦
CONDITIONS
CONTROL LOOP: PWM COMPARATOR, RAMP & LOOP DELAY PATH
Ramp Amplitude
0.80 .00
.20
V
♦
RAMP Offset
.7
2.0
2.3
V
♦
Ramp offset Temperature
Coefficient
-2
mV/
°C
GHMinimumPulseWidth
50
80
ns
♦
Maximum Controllable
Duty Ratio
92
97
%
♦
Maximum Duty Ratio
00
%
♦
Valid for 20 cycles
Internal Oscillator Ratio
255
300
345
kHZ
♦
TIMERS: SOFTSTART
SSChargeCurrent:
-6
-0
-4.0
µA
♦
SSDischargeCurrent:
.0
2.0
3.0
mA
♦
Fault Present,
SS=0.2V
PROTECTION: SHORT CIRCUIT, OVERCURRENT & THERMAL
Short Circuit Threshold
Voltage
0.20 0.25
0.30
V
♦
Hiccup Timeout
70
220
270
ms
♦
VfB=0.5V
Overcurrent Threshold
Voltage
54
60
66
mV
Measured ISP - ISN
ISP, ISN Common Mode
Range
0
3.6
V
Thermal Shutdown
Temperature
35
45
55
°C
Guaranteedbydesign
Thermal Recovery
Temperature
35
°C
Thermal Hysteresis
0
°C
OUTPUT: POWER STAGE
High Side Switch RDSON
6.8
20.5
mΩ
VGS=4.5V; IDrAiN=5A;
TAMB=25°C
Synchronous Low Side
Switch RDSON
6.8
8.5
mΩ
VGS=4.5V; IDrAiN=5A;
TAMB=25°C
Maximum Output
Current
2
A
♦



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