Texas Instruments AN-2166 LMZ10500, Manual

Page: 4 / 28

LMZ10500
SNVS723C – OCTOBER 2011 – REVISED MARCH 2013 www.ti.com
Electrical Characteristics
(1)
(continued)
Specifications with standard typeface are for T
J
= 25°C only; Limits in bold face type apply over the operating junction
temperature range T
J
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 T
J
= 25°C, and are provided for reference purposes
only. Unless otherwise stated the following conditions apply: V
IN
= 3.6V, V
EN
= 1.2V.
Min Typ Max
Symbol Parameter Conditions Units
(1) (2) (1)
SYSTEM PARAMETERS
I
LIM
DC Output Current Limit VCON = 0.24V
800 1000 mA
(4)
F
OSC
Internal oscillator frequency 1.75 2.0 2.25 MHz
V
IH,ENABLE
Enable logic HIGH voltage 1.2 V
V
IL,ENABLE
Enable logic LOW voltage 0.5 V
T
SD
Thermal shutdown Rising Threshold 150 °C
T
SD-HYST
Thermal shutdown hysteresis 20 °C
D
MAX
Maximum duty cycle 100 %
T
ON-MIN
Minimum on-time 50 ns
θ
JA
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 (C
IN
= C
OUT
= 10 µF, 6.3V, 0603, TDK C1608X5R0J106K). These parameters are not guaranteed by production
testing. Unless otherwise stated the following conditions apply: T
A
= 25°C.
Symbol Parameter Conditions Min Typ Max Units
Δ
V
OUT
/V
OUT
Output Voltage Regulation Over V
OUT
= 0.6V
Line Voltage and Load Current Δ V
IN
=2.7V to 4.2V ±1.23 %
Δ
I
OUT
= 0A to 650mA
Δ V
OUT
/V
OUT
Output Voltage Regulation Over V
OUT
= 1.5V
Line Voltage and Load Current Δ V
IN
= 2.7V to 5.5V ±0.56 %
Δ I
OUT
= 0A to 650mA
Δ V
OUT
/V
OUT
Output Voltage Regulation Over V
OUT
= 3.6V
Line Voltage and Load Current Δ V
IN
= 4.0V to 5.5V ±0.24 %
Δ I
OUT
= 0A to 650 mA
VREF T
RISE
Rise time of reference voltage EN = Low to High, V
IN
= 4.2V
10 µs
V
OUT
= 2.7V, I
OUT
= 650 mA
V
IN
= 5.0V, V
OUT
= 3.3V
Peak Efficiency 95
I
OUT
= 200 mA
η %
Full Load Efficiency V
IN
= 5.0V, V
OUT
= 3.6V
93
I
OUT
= 650 mA
V
OUT
Ripple Output voltage ripple V
IN
= 5.0V, V
OUT
= 1.8V
8 mV pk-pk
I
OUT
= 650 mA
(1)
VIN = 2.7V to 5.5V,
Line
Line transient response T
R
= T
F
= 10 µs, 25 mV pk-pk
Transient
VOUT = 1.8V, I
OUT
= 650 mA
(1) Ripple voltage should be measured across C
OUT
on a well-designed PC board using the suggested capacitors.
4 Submit Documentation Feedback
Copyright © 2011–2013, Texas Instruments Incorporated
Product Folder Links: LMZ10500