LMZ10501SH datasheet(4/25 Pages) TI

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LMZ10501

SNVS677D – MAY 2011 – REVISED MARCH 2013

www.ti.com

Electrical Characteristics

(1) (continued)

Specifications with standard typeface are for TJ = 25°C only; Limits in bold face type apply over the operating junction

temperature range TJ of -40°C to 125°C. Minimum and maximum limits are guaranteed through test, design, or statistical

correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes

only. Unless otherwise stated the following conditions apply: VIN = 3.6V, VEN = 1.2V.

Min

Typ

Max

Symbol

Parameter

Conditions

Units

(1)

(2)

(1)

SYSTEM PARAMETERS

I LIM

DC Output Current Limit

VCON = 0.24V

(4)

1125

1350

FOSC

Internal oscillator frequency

1.75

2.0

2.25

MHz

VIH,ENABLE

Enable logic HIGH voltage

1.2

VIL,ENABLE

Enable logic LOW voltage

0.5

TSD

Thermal shutdown

Rising Threshold

150

°C

TSD-HYST

Thermal shutdown hysteresis

°C

DMAX

Maximum duty cycle

100

TON-MIN

Minimum on-time

θJA

Package Thermal Resistance

20mm x 20mm board

2 layers, 2 oz copper, 0.5W, no

118

airlow

15mm x 15mm board

2 layers, 2 oz copper, 0.5W, no

132

°C/W

airlow

10mm x 10mm board

2 layers, 2 oz copper, 0.5W, no

157

airlow

(4)

Current limit is built-in, fixed, and not adjustable.

System Characteristics

The following specifications are guaranteed by design providing the component values in the Typical Application Circuit are

used (CIN = COUT = 10 µF, 6.3V, 0603, TDK C1608X5R0J106K). These parameters are not guaranteed by production

testing. Unless otherwise stated the following conditions apply: TA = 25°C.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

ΔVOUT/VOUT Output Voltage Regulation Over

VOUT = 0.6V

Line Voltage and Load Current

ΔVIN =2.7V to 4.2V

±1.75

ΔIOUT = 0A to 1A

ΔVOUT/VOUT Output Voltage Regulation Over

VOUT = 1.5V

Line Voltage and Load Current

ΔVIN = 2.7V to 5.5V

±0.92

ΔIOUT = 0A to 1A

ΔVOUT/VOUT Output Voltage Regulation Over

VOUT = 3.6V

Line Voltage and Load Current

ΔVIN = 4.0V to 5.5V

±0.38

ΔIOUT = 0A to 1A

VREF TRISE Rise time of reference voltage

EN = Low to High, VIN = 4.2V

µs

VOUT = 2.7V, IOUT = 1A

VIN = 5.0V, VOUT = 3.3V

Peak Efficiency

IOUT = 200 mA

Full Load Efficiency

VIN = 5.0V, VOUT = 3.6V

IOUT = 1000 mA

VOUT Ripple Output voltage ripple

VIN = 5.0V, VOUT = 1.8V

mV pk-pk

IOUT = 1000 mA

(1)

VIN = 2.7V to 5.5V,

Line

Line transient response

TR = TF= 10 µs,

mV pk-pk

Transient

VOUT = 1.8V, IOUT = 1000mA

VIN = 5.0V

Load

TR = TF = 40 µs,

Load transient response

mV pk-pk

Transient

VOUT = 1.8V

IOUT = 100mA to 1000 mA

(1)

Ripple voltage should be measured across COUT on a well-designed PC board using the suggested capacitors.

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