Datasheet

MAX16962
4A, 2.2MHz, Synchronous Step-Down
DC-DC Converter
6Maxim Integrated
Pin Configurations
Pin Descriptions
PIN
NAME FUNCTION
TQFN TSSOP
1 3 LX2 Switching Node 2. LX2 is high impedance when the converter is off.
2 4 PGND2 Power Ground 2
3 5 PGND1 Power Ground 1
4 6 LX1 Switching Node 1. LX1 is high impedance when the converter is off.
5 7 PV1
Input Supply 1. Bypass PV1 with at least a 4.7FF ceramic capacitor to PGND1. Connect PV1 to
PV2 for normal operation.
6 8 EN Enable Input. Drive EN high to enable converter. Drive EN low to disable converter.
7 9 OUTS
Feedback Input (Adjustable Output Option Only). Connect an external resistive divider from
VOUT to OUTS and GND to set the output voltage. See Figure 2.
8 10 PG
Power-Good Output. Open-drain output. PG asserts when VOUT drops below 8% or rises above
10% of the nominal output voltage. Connect to a 20kI pullup resistor.
9,
13–15
1, 11,
15, 16
GND Ground
10 12 PWM
PWM Control Input. Drive PWM high to put converters in forced-PWM mode. Drive PWM low to
put converters in SKIP mode.
11 13 SYNC
Factory-Set Sync Input or Output. As an input, SYNC accepts a 1.7MHz to 2.4MHz external clock
signal. As an output, SYNC outputs a 90° phase-shifted signal with respect to internal oscillator.
15
16
14
13
6
5
7
PGND2
LX1
8
LX2
SYNC GND PV
12
GND
4
12 11 9
GND
PV2
PG
OUTS
EN
PV1
+
PGND1 PWM
3
10
GND
TQFN
(4mm x 4mm)
TOP VIEW
+
TSSOP
134
SYNC
PGND2
143
PV
LX2
152
GND
PV2
161
GNDGND
107
PG
PV1
116
GND
LX1
98
OUTS
EN
125
PWM
PGND1
EP
EP
TOP VIEW
MAX16962 MAX16962