参数资料
型号: MAX1685EEE
厂商: Maxim Integrated Products
文件页数: 3/14页
文件大小: 0K
描述: IC REG BUCK SYNC 3.3V/ADJ 16QSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 100
类型: 降压(降压)
输出类型: 两者兼有
输出数: 1
输出电压: 3.3V,1.25 V ~ 14 V
输入电压: 2.7 V ~ 14 V
PWM 型: 电流模式
频率 - 开关: 600kHz
电流 - 输出: 1A
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: 16-SSOP(0.154",3.90mm 宽)
包装: 管件
供应商设备封装: 16-QSOP
Low-Noise, 14V Input, 1A, PWM
Step-Down Converters
ELECTRICAL CHARACTERISTICS (continued)
(V IN = V SHDN = 6V, STBY = SYNC/PWM = CVL, V BOOT = V OUT , FB = AGND, circuit of Figure 1, T A = 0°C to +85°C , unless otherwise
noted. Typical values are at T A = +25°C.)
PARAMETER
Quiescent Supply Current
in Dropout
Shutdown Supply Current
LX Leakage Current
Oscillator Frequency
SYNC Capture Range
SYMBOL
I LX
f OSC
CONDITIONS
STBY = low, V IN = 2.7V
SHDN = low
V IN = 14V, V LX = 0 or 14V, SHDN = low
MAX1684
MAX1685
MAX1684
MAX1685
MIN
260
520
180
360
TYP
230
2
300
600
MAX
430
6
20
340
680
350
700
UNITS
μA
μA
μA
kHz
kHz
Maximum Duty Cycle
100
%
Constant-Frequency Minimum
Duty Cycle
(Note 3)
MAX1684
MAX1685
10
20
%
Reference Output Voltage
Reference Load Regulation
Reference Supply Regulation
CVL Regulator Output Voltage
V REF
I REF = 0
-1μA < I REF < 50μA
2.7V < V BOOT < 5.5V
V IN = 3V to 14V, BOOT = AGND,
I CVL = 0 to 5mA
1.238
2.7
1.251
4
0.2
3.0
1.264
15
5
3.15
V
mV
mV
V
CVL Dropout Voltage
BOOT = AGND, I CVL = 5mA
120
mV
CVL Undervoltage Lockout
Threshold
CVH with Respect to V IN
BOOT Switchover Threshold
Thermal Shutdown Threshold
ILIM/SS Source Current
BOOT = AGND, CVL falling edge,
typical hysteresis is 40mV
I CVH = -1mA
BOOT falling edge,
typical hysteresis is 0.1V
Typical hysteresis is +10°C (Note 4)
V ILIM/SS = 1.4V
2.35
-5.0
2.35
3.3
2.5
-4.6
2.5
160
4
2.6
-4.1
2.65
4.65
V
V
V
°C
μA
Logic Input High Voltage
Logic Input Low Voltage
Logic Input Current
SYNC/PWM Pulse Width
V IH
V IL
SHDN , STBY , SYNC/PWM
SHDN , STBY , SYNC/PWM
High or low period
2
-1
500
0.7
1
V
V
μA
ns
_______________________________________________________________________________________
3
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