AAT3125ISN-T1 Analogic Tech, AAT3125ISN-T1 Datasheet - Page 2

• Manufacturer Part Number: AAT3125ISN-T1
• Description: Switching Converters, Regulators & Controllers USB OTG 5V Charge Pump
• Manufacturer: Analogic Tech

Specifications of AAT3125ISN-T1

• Output Voltage: 6 V (Max)
• Output Current: 100 mA
• Input Voltage: 2.9 V
• Switching Frequency: 750 KHz
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN44-16
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Pin Descriptions
Pin Configuration
2
Pin #
8, 13
EP
10
12
14
15
16
11
1
2
3
4
5
6
7
9
Symbol
SESDET
SRRDY
OUTCP
POK1
POK2
OUT
GND
C1+
C2+
C1-
N/C
C2-
VIN
SR
EN
Function
Power OK 1. Open drain output with 4.0V voltage detector. When the OUT pin rises above the
detected voltage (4.0V), POK1 will transition from low to high state. Similarly, when the output
falls below 4.0V, POK1 will transition from high to low. A 10kΩ pull-up resistor is recommended.
Power OK 2. Open drain output with 4.4V voltage detector. When the OUT pin rises above the
detected voltage (4.4V), POK2 will transition from low to high state. Similarly, when the output
falls below 4.4V, POK2 will transition from high to low. A 10kΩ pull-up resistor is recommended.
Session detect. Open drain output with 2.0V voltage detector. When the OUT pin rises above the
detected voltage (2.0V), it will transition from low to high state. Similarly, when the output falls
below 2.0V, SESDET will transition from high to low. A 10kΩ pull-up resistor is recommended.
Session request ready. Open drain output with 0.6V voltage detector. When the OUT pin rises
above the detected voltage (0.6V), it will transition from low to high state. Similarly, when the
output falls below 0.6V, SRRDY will transition from high to low. A 10kΩ pull-up resistor is rec-
ommended.
Power output to VBUS.
Flying capacitor 1 positive terminal.
Flying capacitor 1 negative terminal.
No connect.
Charge pump output. Requires 1µF bypass capacitor to ground.
Flying capacitor 2 positive terminal.
Flying capacitor 2 negative terminal.
Ground.
Input power supply. Requires 1µF bypass capacitor to ground.
Session request input control pin. Should not be left floating. Must connect to high or low. For
more details, see Table 1.
Enable input control pin. When in the low state, the AAT3125 is powered down and consumes
a small amount of power. When connected high, it is in normal operation. This pin should not
be left floating. For more details, see Table 1.
Exposed paddle (bottom); connect to GND directly beneath package.
SESDET
SRRDY
POK1
POK2
1
2
3
4
(Top View)
QFN44-16
12
11
10
9
C2-
OUTCP
GND
C2+
USB OTG 5V Charge Pump
AAT3125
3125.2005.12.1.4