Texas Instruments TPS53128, Руководство пользователя

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2 Electrical Performance Specifications
Table 2-1. TPS53128EVM-620 Electrical and Performance Specifications
Parameter Notes and Conditions MIN TYP MAX UNIT
INPUT CHARACTERISTICS
V
IN
Input voltage 8 12 22 V
I
IN
Input current V
IN
= 12 V, I
OUT1
= 4 A, I
OUT2
= 4 A — 1.2 1.5 A
No load input current V
IN
= 12 V, I
OUT
= 0 A — 20 — mA
V
IN_UVLO
Input UVLO I
OUT
= 4 A 4.0 4.2 4.5 V
OUTPUT CHARACTERISTICS
V
OUT1
Output voltage 1 V
IN
= 12 V, I
OUT1
= 2 A — 1.05 — V
Line regulation V
IN
= 8 V to 22 V — — 1%
Load regulation I
OUT1
= 0 A to 4 A — — 1%
V
OUT1_rip
Output voltage ripple V
IN
= 12 V, I
OUT2
= 4 A — - 30 mVpp
I
OUT1
Output current 1 V
IN
= 8 V to 22 V 0 4 A
V
OUT2
Output voltage 2 V
IN
= 12 V, I
OUT2
= 2 A — 1.80 — V
Line regulation V
IN
= 8 V to 22 V — — 1%
Load regulation I
OUT2
= 0 A to 4 A — — 1%
V
OUT2_rip
Output voltage ripple V
IN
= 12 V, I
OUT2
= 4 A — — 30 mVpp
I
OUT2
Output current 2 V
IN
= 8 V to 22 V 0 4 A
SYSTEMS CHARACTERISTICS
F
SW
Switching frequency 200 350 400 kHz
ηpk1 Peak efficiency of output 1 V
IN
= 12 V — 87% —
η1 Full load efficiency of output 1 V
IN
= 12 V, I
OUT1
= 4 A — 85% —
ηpk2 Peak efficiency of output 2 V
IN
= 12 V — 91% —
η2 Full load efficiency of output 2 V
IN
= 12 V, I
OUT2
= 4 A — 90% —
Electrical Performance Specifications www.ti.com
4 TPS53128 Buck Controller Evaluation Module User's Guide SLVU433A – FEBRUARY 2011 – REVISED JANUARY 2022
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