参数资料
型号: MAX17020ETJ+T
厂商: Maxim Integrated Products
文件页数: 16/34页
文件大小: 0K
描述: IC CTLR PWM DUAL STEP DN 32-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
系列: Quick-PWM™
应用: 电源
电流 - 电源: 1mA
电源电压: 6 V ~ 24 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-WFQFN 裸露焊盘
供应商设备封装: 32-TQFN-EP(5x5)
包装: 带卷 (TR)
Dual Quick-PWM Step-Down Controller
with Low-Power LDO, RTC Regulator
NOTE: PLACE C22 BETWEEN
IN AND PGND AS CLOSE AS
POSSIBLE TO THE MAX17020.
C22
0.1 μ F
N H1
DH1
IN
DH2
N H2
C IN
4 x 10 μ F 25V
INPUT (V IN )*
7V TO 24V
BST1
BST2
5V OUTPUT
L1
C BST1
0.1 μ F
LX1
LX2
C BST2
0.1 μ F
L2
3.3V OUTPUT
C OUT1
C OUT2
D1
N L1
DL1
DL2
N L2
D2
PGND
AGND
RGND
OUT1
BYP
OUT2
0 Ω
12V TO 15V
C6
0.1 μ F
D X1
C5
10nF
C7
10nF
MAX17020
PGOOD1
PGOOD2
RTC
R6
100k Ω
C3
R7
100k Ω
5V SMPS OUTPUT (OUT1)
}
POWER-GOOD
RTC SUPPLY
CHARGE
1 μ F
PUMP
C8
0.1 μ F
R4
500k Ω
D X2
SECFB
C4
0.1 μ F
R5
100k Ω
FB1
REF
SKIP
LDOREFIN
V DD
5V LDO OUTPUT
LDO
ON1
R1
47 Ω
C1
4.7 μ F
ON2
ONLDO
ON
OFF
POWER GROUND
C2
1.0 μ F
V CC
REFIN2
TON
X
OUT1/OUT2 SWITCHING FREQUENCY
OPEN (REF): 400kHz/300kHz
ANALOG GROUND
R ILIM1
R ILIM2
*LOWER INPUT VOLTAGES REQUIRE
ADDITIONAL INPUT CAPACITANCE. IF
OPERATING NEAR DROPOUT, COMPONENT
SELECTION MUST BE CAREFULLY DONE TO
ENSURE PROPER OPERATION.
Figure 1. Standard Application Circuit—Main Supply
ILIM1
PAD
ILIM2
16
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