参数资料
型号: MAX8969EWL35+T
厂商: Maxim Integrated Products
文件页数: 10/15页
文件大小: 0K
描述: IC REG BOOST SYNC 3.5V 1A 9WLP
标准包装: 2,500
类型: 升压(升压)
输出类型: 固定
输出数: 1
输出电压: 3.5V
输入电压: 2.5 V ~ 5.5 V
频率 - 开关: 3MHz
电流 - 输出: 1A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: *
封装/外壳: *
包装: *
供应商设备封装: *
MAX8969
Step-Up Converter
for Handheld Applications
UVLO, EXCESSIVE
TEMPERATURE,
OR SHORT CIRCUIT
FROM ANY STATE
TRUE SHUTDOWN
N1 = OFF
P1 = OFF
I Q = 1μA (typ)
EN = 1, OR
TREN = 1
EN = 0,
TREN = 0
0
V IN
COMPARATOR
1
EN = 0,
TREN = 0
AUTOMATIC TRACK
V OUT < V IN ,
TREN = 0
TRACK MODE*
N1 = OFF
P1 = CURRENT-
LIMITED SWITCH
I Q = 30μA (typ)
MODE (ATM)*
N1 = OFF
P1 = CURRENT-
LIMITED SWITCH
I Q = 65μA (typ)
BOOST CIRCUITRY ENABLED
OUTPUT
BELOW TARGET
V OUT < V IN ,
TREN = 1
EN = 1,
V OUT > (V IN - 300mV)
[V OUT < (0.72 x
V OUT_TARGET )]
BOOST EXIT MODE
N1 = OFF
EN = 0
BOOST SOFT-START
V IN
COMPARATOR = 0
V IN
COMPARATOR = 1
P1 = OFF
IC WAITS UNTIL
V OUT = V IN
EN = 0
N1 = SWITCHING
P1 = OFF
SOFT-START
VOLTAGE RAMP
COMPLETE
BOOST MODE
N1 = SWITCHING
P1 = SWITCHING
V OUT = V OUT_TARGET
I Q = 45μA (SKIP MODE)
*EN TAKES PRIORITY OVER TREN. SEE TABLE 1.
Figure 2. State Diagram
10
Maxim Integrated
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