Datasheet

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TPS65050, TPS65051, TPS65052
TPS65054, TPS65056
SLVS710A – JANUARY 2007 – REVISED AUGUST 2007
TERMINAL FUNCTIONS (continued)
TERMINAL
I/O DESCRIPTION
NAME TPS65050 TPS65051 TPS65052 TPS65054 TPS65056
PGND1 23 23 23 23 23 I GND for converter 1
PGND2 19 19 19 19 19 I GND for converter 2
AGND 2 2 2 2 2 I Analog GND, connect to PGND and PowerPad™
L2 20 20 20 20 20 O Switch Pin of converter 2. Connected to Inductor.
EN_DCDC1 25 25 25 25 25 I Enable Input for converter 1, active high
EN_DCDC2 26 26 26 26 26 I Enable Input for converter 2, active high
VINLDO1 29 29 29 29 29 I Input voltage for LDO1
VINLDO2 4 4 4 4 4 I Input voltage for LDO2
VINLDO3/4 11 11 11 11 11 I Input voltage for LDO3 and LDO4
VLDO1 30 30 30 30 30 O Output voltage of LDO1
VLDO2 5 5 5 5 5 O Output voltage of LDO2
VLDO3 10 10 10 10 10 O Output voltage of LDO3
VLDO4 12 12 12 12 12 O Output voltage of LDO4
Digital input, used to set the default output voltage of LDO1 to
DEFLDO1 31 -- 31 -- -- I
LDO4; LSB
FB1 -- 31 -- 31 31 I Feedback input for the external voltage divider.
Digital input, used to set the default output voltage of LDO1 to
DEFLDO2 6 -- 6 -- -- I
LDO4.
FB2 -- 6 -- 6 6 I Feedback input for the external voltage divider.
Digital input, used to set the default output voltage of LDO1 to
DEFLDO3 9 -- 9 -- -- I
LDO4.
FB3 -- 9 -- 9 9 I Feedback input for the external voltage divider.
Digital input, used to set the default output voltage of LDO1 to
DEFLDO4 13 -- 13 -- -- I
LDO4; MSB
FB4 -- 13 -- 13 13 I Feedback input for the external voltage divider.
Enable input for LDO1. Logic high enables the LDO, logic low
EN_LDO1 27 27 27 27 27 I
disables the LDO.
Enable input for LDO2. Logic high enables the LDO, logic low
EN_LDO2 28 28 28 28 28 I
disables the LDO.
Enable input for LDO3. Logic high enables the LDO, logic low
EN_LDO3 15 15 15 15 15 I
disables the LDO.
Enable input for LDO4. Logic high enables the LDO, logic low
EN_LDO4 16 16 16 16 16 I
disables the LDO.
THRESHOLD -- 7 7 7 7 I Reset input
PB_IN 7 -- -- -- -- I Input for the pushbutton ON-OFF function
HYSTERESIS -- 8 8 8 8 I Input for hysteresis on reset threshold
GND 8 -- -- -- -- - Connect to GND
RESET -- 14 14 14 14 O Open drain active low reset output, 100 ms reset delay time.
Open drain output. Active low after the supply voltage (V
CC
)
PB_OUT 14 -- -- -- -- O exceeded the undervoltage lockout threshold. The pin can be
toggled pulling PB_IN high.
BP 1 1 1 1 1 I Input for bypass capacitor for internal reference.
PowerPAD™ -- -- -- -- -- Connect to GND
8 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated
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