参数资料
型号: AS1337A-BTDT
厂商: ams
文件页数: 5/16页
文件大小: 0K
描述: IC REG BUCK BOOST SYNC ADJ 8TDFN
标准包装: 1
类型: 降压(降压),升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 2.5 V ~ 5 V
输入电压: 0.65 V ~ 4.5 V
PWM 型: 电流模式
频率 - 开关: 1.2MHz
电流 - 输出: 200mA
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: 8-WDFN 裸露焊盘
包装: 标准包装
供应商设备封装: 8-TDFN(3x3)
其它名称: AS1337A-BTDTDKR
AS1337
Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s
6 Electrical Characteristics
V IN = V EN = +1.2V, V OUT = +3.3V, Typ values @ T AMB = +25oC (unless otherwise specified);
Table 4. Electrical Characteristics
Symbol
T AMB
Parameter
Operating Temperature Range
Conditions
Min
-45
Typ
Max
+85
Units
°C
Input
Minimum Start-Up Voltage
I LOAD = 1mA
0.85
1.15
V
V IN
Minimum Operating Voltage
Maximum Input Voltage
Output Voltage Adjust Range
EN = V IN
1
2.5
0.65
0.85
4.5
5
V
V
V
Regulation
V FB
I FB
Feedback Voltage
Feedback Input Current
V FB = 1.25V
1.192
1.23
1
1.268
V
nA
Operating Current
I QPWS
Quiescent Current
V FB = 1.4V
2
20
35
μA
I SHDN
Shutdown Current
EN = GND, V IN = 3.3V
0.01
1
μA
Switches
I NMOSSWL NMOS Switch Leakage
0.01
1
μA
I PMOSSWL PMOS Switch Leakage
R ONNMOS NMOS Switch On Resistance
R ONPMOS PMOS Switch On Resistance
NMOS Current Limit
I NMOS
AS1337B only
V OUT = 3.3V
V OUT = 5V
V OUT = 3.3V
V OUT = 5V
0.01
0.35
0.20
0.45
0.30
850
1
μA
Ω
Ω
mA
Max Duty Cycle
V FB = 1V
80
87
%
f SW
Switching Frequency
0.95
1.2
1.5
MHz
Shutdown
V IH
V IL
Enable Input Threshold
1
0.3
V
I EN
EN Input Current
EN = 5.0V
0.01
1
μA
Power-OK
POK Voltage Low
POK Leakage Current
I POK =1mA
V POK = V IN or V OUT
0.1
1
0.4
100
V
nA
Power-OK Threshold
Falling Edge
86
88
91
%
Thermal Protection
T ENM
Δ T ENM
Overtemperature Protection
Overtemperature Protection Hysteresis
145
10
oC
oC
1. Minimum V IN operation after start-up is only limited by the battery’s ability to provide the necessary power as it enters a deeply dis-
charged state.
2. I QPWS is measured at V OUT . Multiply this value by V OUT /V IN to get the equivalent input (battery) current.
Note: All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or SQC (Statistical Quality
Control) methods.
Revision 1.05
4 - 15
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