The TPS6500xx devices are single-chip power management (PWM) ICs for portable applications. Both devices combine a single step-down converter with two low-dropout (LDO) regulators. The step-down converter enters a low-power mode at light load for maximum efficiency across the widest possible range of load currents. For low-noise applications, the devices can be forced into fixed-frequency PWM through a pin. The step-down converter is small because of its small inductor and capacitors. The step-down converter has power good status output for sequencing. The LDOs can supply 300 mA and operate with an input voltage range from 1.6 V to 6 V. A step-down converter or main battery can power the LDOs directly. The step-down converter and the LDOs have separate voltage inputs that enable maximum design and sequencing flexibility.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TPS65000, TPS650001, TPS650003, TPS650006 |
WQFN (16) | 3.00 mm × 3.00 mm |
TPS65001, TPS650061 |
WQFN (20) | 3.00 mm × 3.00 mm |
Changes from B Revision (August 2010) to C Revision
Changes from A Revision (October 2009) to B Revision
Changes from * Revision (June 2009) to A Revision
The TPS65001 extends functionality by adding a supply voltage supervisor (SVS). To maximize the flexibility of the SVS, the reset voltage is set with two external resistors and the reset time is set by a small external capacitor. For external control, the SVS can use its active-low manual reset input to connect to a push button.
The TPS65000 is available in a 16-pin leadless package (3 mm × 3 mm QFN). The TPS65001 is available in a 20-pin leadless package (3 mm × 3 mm QFN).
PART NUMBER(1)(2) | OPTIONS | SVS | SSC |
---|---|---|---|
TPS65000 | LDO voltages externally adjustable DC-DC converters 600 mA, VOUT externally adjustable | N/A | Included |
TPS65001 | Included | Included | |
TPS650001 | LDO1 = 1.8 V fixed, LDO2 = 2.8 V fixed, DC-DC Converter 600 MA, DCDC VOUT = 1.2 V fixed |
N/A | Included |
TPS650003 | LDO1 = 3.3 V fixed, LDO2 = 1.8 V fixed, DC-DC Converter 600 MA, DCDC VOUT = 1.5 V fixed |
N/A | Included |
TPS650006 | LDO1 = 1.8 V fixed, LDO2 = 3.3 V fixed, DC-DC Converter 600 MA, DCDC VOUT = 1.2 V fixed |
N/A | Included |
TPS650061 | LDO1 = 3.3 V fixed, LDO2 = 1.8 V fixed, DC-DC Converter 1 A, VOUT externally adjustable |
Included | Included |
PIN | I/O | DESCRIPTION | ||
---|---|---|---|---|
NAME | 16-PIN RTE | 20-PIN RUK | ||
AGND | 10 | 12 | — | Analog ground - Start back to PGND as close to the IC as possible. |
EN_DCDC | 8 | 10 | I | Enable DC-DC converter |
EN_LDO1 | 1 | 3 | I | Enable LDO1 |
EN_LDO2 | 2 | 4 | I | Enable LDO2 |
FB_DCDC | 9 | 11 | I | Voltage to DC-DC error amplifier |
FB_LDO1 | 11 | 13 | I | Voltage to LDO1 error amplifier |
FB_LDO2 | 14 | 16 | I | Voltage to LDO2 error amplifier |
MODE | 7 | 9 | I | Selects force PWM or PWM/PFM automatic-transition mode |
MR | — | 1 | I | Active-low input to force a reset. (1) |
PG | 3 | 5 | O | Open-drain active low power good output. |
PGND | 4 | 6 | — | Power ground – Connected to the thermal pad |
RST | — | 20 | O | Open-drain active low reset output |
RSTSNS | — | 19 | I | Voltage for RST generation |
SW | 5 | 7 | O | Switch pin – connect inductor here |
TRST | — | 2 | I/O | Capacitor connection for setting reset time |
VINDCDC | 6 | 8 | I | Input voltage to DC-DC converter and all other control blocks |
VINLDO1 | 13 | 15 | I | Input voltage to LDO1 |
VINLDO2 | 16 | 18 | I | Input voltage to LDO2 |
VLDO1 | 12 | 14 | O | LDO1 output voltage |
VLDO2 | 15 | 17 | O | LDO2 output voltage |