Datasheet

200 kW
400 kW
800 kW
1.6 MW
3.2 MW
0P8V
0P4V
0P2V
0P1V
1P6V
100 kW
3P2V
50 kW
6P4V
50 kW
6P4V
Band
Gap
265.5 kW
100 kW
1.572 MW
IN
IN
C
IN
Fast
Charge
Current
Limit
OUT
OUT
C
OUT
NR
C
NR
UVLO
Thermal
Shutdown
SENSE/FB
Enable
EN
TPS7A4700
TPS7A4701
www.ti.com SBVS204E –JUNE 2012–REVISED JANUARY 2014
PIN DESCRIPTIONS (continued)
PIN
PIN NAME NUMBER DESCRIPTION
GND 7 Ground
Input supply. A capacitor greater than or equal to 1 µF must be tied from this pin to ground to assure
stability.
IN 15, 16 A 10-µF capacitor is recommended to be connected from IN to GND (as close to the device as possible) to
reduce circuit sensitivity to printed-circuit-board (PCB) layout, especially when long input traces or high
source impedances are encountered.
NC 2, 17-19 This pin can be left open or tied to any voltage between GND and IN.
Noise reduction pin. When a capacitor is connected from this pin to GND, RMS noise can be reduced to
very low levels. A capacitor greater than or equal to 10 nF must be tied from this pin to ground to assure
NR 14
stability. A 1-µF capacitor is recommended to be connected from NR to GND (as close to the device as
possible) to maximize ac performance and minimize noise.
Regulator output. A capacitor greater than or equal to 10 µF must be tied from this pin to ground to assure
OUT 1, 20 stability. A 47-µF ceramic output capacitor is highly recommended to be connected from OUT to GND (as
close to the device as possible) to maximize ac performance.
Control-loop error amplifier input (TPS7A4701 only).
This is the SENSE pin if the device output voltage is programmed using ANY-OUT (no external feedback
SENSE/FB 3 resistors). This pin must be connected to OUT. Connect this pin to the point of load to maximize accuracy.
This is the FB pin if the device output voltage is set using external resistors. See the Adjustable Operation
section for more details.
Control-loop error amplifier input (TPS7A4700 only).
SENSE 3
This is the SENSE pin of the device and must be connected to OUT. Connect this pin to the point of load to
maximize accuracy.
Thermal Pad Connect the thermal pad to a large-area ground plane. The thermal pad is internally connected to GND.
FUNCTIONAL BLOCK DIAGRAM
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