5.5 Electrical Characteristics (continued)

over recommended operating temperature range, TJ = –40°C to +125°C VEN = VIN, VIN = VO(typ) + 1V, IOUT = 1 mA, COUT =

10 µF, CNR = 0.01 µF (Legacy Chip) (unless otherwise noted). All typical values at TJ= 25°C.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ICL

Output current

limit

VOUT = 0V(Legacy Chip)

285

600

mA

ICL

Output current

limit

VIN = VOUT(NOM) + 1 V, VOUT = 0.9

x VOUT(NOM) (New Chip only)

320

460

mA

ISC

Short-circuit

current limit

VOUT = 0V (New Chip)

175

mA

ISHDN

Shutdown

current

VEN = 0V, 2.7V < VI <

5.5V(Legacy Chip)

0.07

1

µA

VEN = 0V, 2.7V < VI < 5.5V(New

Chip)

0.01

1

VEN(HI)

High-level

enable input

voltage

2.7V ≤ VIN ≤ 5.5V

1.7

VIN

V

VEN(HI)

High-level

enable input

voltage

2.7V ≤ VIN ≤ 5.5V (New Chip)

0.85

VIN

V

VEN(LOW)

Low-level

enable input

voltage

2.7V ≤ VIN ≤ 5.5V

0

0.7

V

VEN(LOW)

Low-level

enable input

voltage

2.7V ≤ VIN ≤ 5.5V (New Chip)

0

0.425

V

IEN

Enable pin

current

VEN = 0 V

–1

1

µA

VREF

Internal

reference

(TPS79201)

1.201

1.225

1.25

V

PSRR

Power-supply

rejection ratio

(TPS79228)

f = 100Hz

IOUT = 10mA

(Legacy Chip)

70

dB

Power-supply

rejection ratio

(TPS79230)

IOUT = 10mA

(New Chip)

64

Power-supply

rejection ratio

(TPS79228)

IOUT = 100mA

(Legacy Chip)

72

Power-supply

rejection ratio

(TPS79230)

IOUT = 100mA

(New Chip)

64

Power-supply

rejection ratio

(TPS79228)

f = 10kHz

IOUT = 100mA

(Legacy Chip)

75

Power-supply

rejection ratio

(TPS79230)

IOUT = 100mA

(New Chip)

49

Power-supply

rejection ratio

(TPS79228)

f = 100kHz

IOUT = 100mA

(Legacy Chip)

47

Power-supply

rejection ratio

(TPS79230)

IOUT = 100mA

(New Chip)

39

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TPS792

SLVS337E – MARCH 2001 – REVISED JANUARY 2025

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