参数资料
型号: SP7650ER-L
厂商: Exar Corporation
文件页数: 3/16页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 3A 26DFN
标准包装: 500
系列: Power Blox™
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.8 V ~ 27 V
输入电压: 2.5 V ~ 28 V
PWM 型: 电压模式
频率 - 开关: 300kHz
电流 - 输出: 3A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 26-VFDFN 裸露焊盘
包装: 散装
供应商设备封装: 26-DFN(7x4)
其它名称: 1016-1679
SP7650ER-L-ND
ELECTRICAL SPECIFICATIONS
Unless otherwise specified: -40 ° C < T AMB < 85 ° C, -40 ° C< Tj< 125 ° C, 4.5V < V CC < 5.5V, 3V< Vin< 28V, BST=LX + 5V,
LX = GND = 0.0V, UVIN = 3.0V, CV CC = 1 μ F, C COMP = 0.1 μ F, C SS = 50nF, Typical measured at V CC = 5V.
The denotes the specifications which apply over the full temperature range, unless otherwise specified.
PARAMETER
MIN.
TYP.
MAX.
UNITS
CONDITIONS
CONTROL LOOP: PWM COMPARATOR, RAMP & LOOP DELAY PATH
Ramp Amplitude
RAMP Offset
RAMP offset Temp. Coefficient
GH Minimum Pulse Width
0.92
1.1
1.1
-2
90
1.28
180
V
V
mV/?C
ns
T A = 25?C, RAMP COMP
until GH starts Switching
Maximum Controllable Duty Ratio
Maximum Duty Ratio
92
100
97
%
%
Maximum Duty Ratio Measured
just before pulsing begins
Valid for 20 cycles
Internal Oscillator Ratio
240
300
360
kHz
TIMERS: SOFTSTART
SS Charge Current:
10
μA
SS Discharge Current:
1
mA
Fault Present, SS = 0.2V
PROTECTION: SHORT CIRCUIT & THERMAL
Short Circuit Threshold Voltage
Hiccup Timeout
0.2
0.25
200
0.3
V
ms
Measured V REF (0.8V) - V FB
V FB = 0.5V
Number of Allowable Clock Cycles
at 100% Duty Cycle
20
Cycles
Minimum GL Pulse After 20 Cycles
Thermal Shutdown Temperature
Thermal Recovery Temperature
Thermal Hysteresis
0.5
145
135
10
Cycles
?C
?C
?C
V FB = 0.7V
V FB = 0.7V
OUTPUT: POWER STAGE
High Side Switch R DSON
Synchrous Lowside Switch R DSON
Maximum Output Current
3
40
40
m?
m?
A
V CC = 5V ; I OUT = 3A; T AMB = 25?C
V CC = 5V ; I OUT = 3A ; T AMB = 25?C
2/16/06
Date:   / 5/06
WideInputInput     Range3A,  3A,      BuckBuck
SP7650 SP7650 Wide Voltage Voltage Range 300kHz, 300kHz, Regulator Regulator
3
? ? Copyright 2006 Sipex Corporation
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