TPS5602 Datasheet, PDF (1/24 Pages) Texas Instruments – DUAL, FAST, HIGH EFFICIENCY CONTROLLER FOR DSP POWER

TPS5602
DUAL, FAST, HIGH EFFICIENCY CONTROLLER FOR DSP POWER
D Independent Dual Channels
D Hysteretic Control for Fast Transient
Response
D 4.5-V to 25-V Input Voltage Range
D Adjustable Output Voltage Down to 1.2 V
D Synchronous Rectifier Enables Efficiencies
of >95%
D Minimized External Component Count
D Separate Standby Control and Over Current
Protection
D Low Supply Current . . . 0.8 mA Typ
D 30-Pin TSSOP
D Low Standby Current (1-µA maximum)
D EVM Available (TPS5602EVM-121)
description
DBT PACKAGE
(TOP VIEW)
SLVS217 – JUNE 1999
INV1 ₁
NC 2
SOFTSTART1 3
NC 4
C_T 5
NC 6
GND 7
REF 8
STBY1 9
STBY2 10
V_CC 11
COMP 12
SOFTSTART2 13
NC 14
INV2 15
30 LH1
29 OUT1_u
28 LL1
27 OUT1_d
26 OUTGND1
25 TRIP1
24 V_CC SENSE
23 TRIP2
22 Vref5
21 REG5V_IN
20 OUTGND2
19 OUT2_d
18 LL2
17 OUT2_u
16 LH2
The TPS5602 is a dual-channel synchronous
buck switch-mode power supply controller
NC – No internal connection
featuring very fast feedback control and minimized component count. By using the hysteretic control method,
it is ideal for high-transient current applications, such as ’C6000 and multiple ’C54x DSPs. The TPS5602 is
designed specifically for DSP applications that require high efficiency. Since both channels are independent,
the up and down power sequencing can be easily achieved by properly setting the standby pins. The wide input
voltage and adjustable output voltage make the TPS5602 suitable for many applications.
typical design
5V
GND
+
C3
R3
R2
C1
D1
C4
L1
OUT1
1.8 V
C7
R5
C2
R6
R1
R4
C8
L2
C5
OUT2
3.3 V
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright © 1999, Texas Instruments Incorporated
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