MAX17075ETG+ Maxim Integrated Products, MAX17075ETG+ Datasheet - Page 10

• Manufacturer Part Number: MAX17075ETG+
• Description: IC DC-DC CONV W/CHRG PUMP 24TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX17075ETG+

• Applications: LCD TV/Monitor
• Current - Supply: 4mA
• Voltage - Supply: 2.3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Boost Regulator with Integrated Charge Pumps,
Switch Control, and High-Current Op Amp
10
18, 19
PIN
10
11
12
13
14
15
16
17
20
21
22
23
24
—
1
2
3
4
5
6
7
8
9
______________________________________________________________________________________
NAME
BGND
AGND
RSTIN
COMP
DRVN
PGND
DRVP
COM
DRN
NEG
OUT
VCC
SRC
POS
SUP
FBP
FBN
DEL
CTL
RST
REF
FB
LX
EP
Operational Amplifier Noninverting Input
Operational Amplifier Inverting Input
Operational Amplifier Output
Analog Ground for Operational Amplifier and Charge Pump. Connect to AGND underneath the IC.
Operational Amplifier and Charge-Pump Supply Input. Connect this pin to the output of the boost
regulator (AVDD) and bypass to BGND with a minimum1μF capacitor.
Positive Charge-Pump Driver Output
Negative Charge-Pump Driver Output
High-Voltage Switch Control Input. When CTL is high, the switch between GON and SRC is on and the
switch between GON and DRN is off. When CTL is low, the switch between GON and DRN is on and the
switch between GON and SRC is off. CTL is inhibited by VCC UVLO and when DEL is less than 1.25V.
Reset Output. RST is an open-drain output.
Positive Charge-Pump Regulator Feedback Input. Connect FBP to the center of a resistive voltage-
divider between the positive charge-pump regulator output and AGND to set the positive charge-pump
regulator output voltage. Place the resistive voltage-divider within 5mm of FBP.
Negative Charge-Pump Regulator Feedback Input. Connect FBN to the center of a resistive voltage-
divider between the negative output and REF to set the negative charge-pump regulator output voltage.
Place the resistive voltage-divider within 5mm of FBN.
Reference Output. Connect a 0.22μF capacitor from REF to AGND. All power outputs are disabled until
REF exceeds its UVLO threshold.
Supplies the Internal Reference and Other Internal Circuitry. Connect VCC to the input supply voltage
and bypass VCC to AGND with a minimum 1μF ceramic capacitor.
Analog Ground for Step-Up Regulator and Linear Regulators. Connect to power ground (PGND)
underneath the IC.
Reset Input. Connect to the center of a resistor-divider from V
Compensation Pin for Error Amplifier. Connect a series RC from COMP to AGND.
Step-Up Regulator Feedback Input. Connect FB to the center of a resistive voltage-divider between the
step-up regulator output and AGND to set the regulator’s output voltage. Place the resistive voltage-
divider within 5mm of FB.
Power Ground
Step-Up Regulator Switching Node. Connect inductor and catch diode here and minimize trace area for
lowest EMI power ground.
Switch Input. Drain of the internal high-voltage back-to-back p-channel FET connects to COM.
Internal High-Voltage MOSFET Switch Common Terminal
Switch Input. Source of the internal high-voltage pFET. Bypass SRC to PGND with a minimum 0.1μF
capacitor close to the pin.
High-Voltage Switch Delay Input. Connect a capacitor from DEL to AGND to set delay.
Exposed Pad. Connect to AGND.
FUNCTION
IN
.
Pin Description