LP5952

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SNVS469F – OCTOBER 2006 – REVISED DECEMBER 2015

6.9 Electrical Characteristics: Thermal Protection

Typical values are for TA = 25°C.

(1) (2) (3)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

TSHDN

Thermal-shutdown temperature

165

°C

ΔTSHDN

Thermal-shutdown hysteresis

20

°C

(1)

All voltages are with respect to the potential at the GND pin.

(2)

Minimum and maximum limits are ensured by design, test, or statistical analysis. Typical numbers are not ensured, but do represent the

most likely norm. Unless otherwise specified, conditions for typical specifications are: VIN = VOUT(NOM) + 1 V, VBATT = VOUT(NOM) + 1.5 V

or 2.5 V, whichever is higher, TA = 25°C.

(3)

VOUT(NOM) is the stated output voltage option.

6.10 Electrical Characteristics: Transient Characteristics

Unless otherwise noted, typical values are for TA = 25°C, and minimum and maximum limits apply over the full operating

temperature range: –40°C

≤ TJ ≤ +125°C.

(1) (2) (3)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Dynamic line transient

VIN = VOUT(NOM) + 0.3 V to

ΔVOUT

±1

mV

response VIN

VOUT(NOM) + 0.9 V; tr, tf = 10 µs

Dynamic line transient

VBATT = VOUT(NOM) + 1.5 V to

ΔVOUT

±15

mV

response VBATT

VOUT(NOM) + 2.1 V; tr, tf = 10 µs

Pulsed load 0 ...300 mA,

DSBGA

±15

mV

di/dt = 300 mA/1 µs

package

Dynamic load transient

ΔVOUT

response

Pulsed load 0 ...300mA, di/dt

USON package

–35/+15

mV

= 300 mA/1 µs

TSTARTUP Start-up time

EN to 0.95 × VOUT

70

150

µs

(1)

All voltages are with respect to the potential at the GND pin.

(2)

Minimum and maximum limits are ensured by design, test, or statistical analysis. Typical numbers are not ensured, but do represent the

most likely norm. Unless otherwise specified, conditions for typical specifications are: VIN = VOUT(NOM) + 1 V, VBATT = VOUT(NOM) + 1.5 V

or 2.5 V, whichever is higher, TA = 25°C.

(3)

VOUT(NOM) is the stated output voltage option.

6.11 Input and Output Capacitors (Recommended)

All values are for TA = 25°C.

(1) (2) (3)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Capacitance(4)

1.5

2.2

10

µF

COUT

Output capacitance

ESR

3

300

m

Ω

Capacitance(4), not needed in typical post-

0.47

1

µF

regulation application (see Figure 18)

CVIN

Input capacitance at VIN

ESR

3

300

m

Ω

(1)

All voltages are with respect to the potential at the GND pin.

(2)

Minimum and maximum limits are ensured by design, test, or statistical analysis. Typical numbers are not ensured, but do represent the

most likely norm. Unless otherwise specified, conditions for typical specifications are: VIN = VOUT(NOM) + 1 V, VBATT= VOUT(NOM) + 1.5 V

or 2.5 V, whichever is higher, TA = 25°C.

(3)

VOUT(NOM) is the stated output voltage option.

(4)

The capacitor tolerance should be 30% or better over temperature. The full operating conditions for the application should be considered

when selecting a suitable capacitor to ensure that the minimum value of capacitance is always met. Recommended capacitor type is

X7R. However, dependent on application, X5R, Y5V, and Z5U can also be used. The shown minimum limit represents real minimum

capacitance, including all tolerances and must be maintained over temperature and DC bias voltage (See Detailed Design Procedure in

Application and Implementation.)

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