MAX17020ETJ+T Maxim Integrated Products, MAX17020ETJ+T Datasheet - Page 16

• Manufacturer Part Number: MAX17020ETJ+T
• Description: IC CTLR PWM DUAL STEP DN 32-TQFN
• Manufacturer: Maxim Integrated Products
• Series: Quick-PWM™r

Specifications of MAX17020ETJ+T

• Applications: Power Supplies
• Current - Supply: 1mA
• Voltage - Supply: 6 V ~ 24 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Dual Quick-PWM Step-Down Controller
with Low-Power LDO, RTC Regulator
Figure 1. Standard Application Circuit—Main Supply
16
5V OUTPUT
12V TO 15V
*LOWER INPUT VOLTAGES REQUIRE
ADDITIONAL INPUT CAPACITANCE. IF
OPERATING NEAR DROPOUT, COMPONENT
SELECTION MUST BE CAREFULLY DONE TO
ENSURE PROPER OPERATION.
CHARGE
______________________________________________________________________________________
PUMP
POWER GROUND
ANALOG GROUND
NOTE: PLACE C22 BETWEEN
IN AND PGND AS CLOSE AS
POSSIBLE TO THE MAX17020.
C
OUT1
0.1μF
C8
5V LDO OUTPUT
0.1μF
500kΩ
C6
R4
L1
D1
100kΩ
1.0μF
47Ω
C2
R5
R1
D
D
X1
X2
N
N
10nF
10nF
C
0.1μF
4.7μF
H1
L1
C5
C7
BST1
0.1μF
C1
C22
R
ILIM1
DH1
BST1
LX1
DL1
OUT1
BYP
SECFB
FB1
V
LDO
V
REFIN2
ILIM1
DD
CC
MAX17020
PAD
IN
LDOREFIN
PGOOD1
PGOOD2
ONLDO
PGND
AGND
OUT2
ILIM2
BST2
SKIP
DH2
ON1
ON2
TON
DL2
RTC
LX2
REF
0.1μF
C4
R
X
ILIM2
100kΩ
C3
1μF
OUT1/OUT2 SWITCHING FREQUENCY
OPEN (REF): 400kHz/300kHz
RGND
R6
0Ω
C
0.1μF
N
N
BST2
H2
L2
ON
OFF
R7
100kΩ
D2
L2
C
4 x 10μF 25V
IN
5V SMPS OUTPUT (OUT1)
}
RTC SUPPLY
POWER-GOOD
INPUT (V
7V TO 24V
C
OUT2
3.3V OUTPUT
IN
)*